950R950T970T

950R/950T/970T - SUPPORT 1
SERIAL NUMBER RECORD

950R/950T/970T - SUPPORT 1
SUPPORT
Record the serial numbers and date of purchase of your
Ditch Witch Subsite components in the spaces below.
Date of purchase:
Receiver serial number:
Transmitter serial number:
Accessory model & serial number
SUPPORT
Record the serial numbers and date of purchase of your
Ditch Witch Subsite components in the spaces below.
Date of purchase:
Receiver serial number:
Transmitter serial number:
2 950R/950T/970T - SUPPORT
SERVICE PROCEDURE
2 950R/950T/970T - SUPPORT
SERVICE PROCEDURE
SERVICE PROCEDURE
Notify your dealer immediately of any malfunction of Ditch Witch
Subsite equipment.
Always give model, serial number, and approximate date of
purchase. This information should be recorded and placed on file
by owner at time of purchase. Give detailed explanation of
malfunction.
Return damaged parts to dealer for inspection and warranty
consideration.
Order genuine Ditch Witch Subsite replacement or repair parts
from your dealer. Use of another manufacturers parts may void
warranty.
SERVICE PROCEDURE
Notify your dealer immediately of any malfunction of Ditch Witch
Subsite equipment.
Always give model, serial number, and approximate date of
purchase. This information should be recorded and placed on file
by owner at time of purchase. Give detailed explanation of
malfunction.
Return damaged parts to dealer for inspection and warranty
consideration.
Order genuine Ditch Witch Subsite replacement or repair parts
from your dealer. Use of another manufacturers parts may void
warranty.
950R/950T/970T - FOREWORD 3
SERVICE PROCEDURE
950R/950T/970T - FOREWORD 3
SERVICE PROCEDURE
FOREWORD
This manual is an important part of your equipment. It provides
safety information and operation instructions to help you use and
maintain your Ditch Witch Subsite Electronics equipment.
Read this manual before using your equipment. Keep it with the
equipment at all times for future reference. If you sell your
equipment, be sure to give this manual to the new owner.
If you need a replacement copy, contact your Ditch Witch Subsite
Electronics dealer. If you need assistance in locating a dealer,
visit our website at www.ditchwitch.com or write to the following
address:
The Charles Machine Works, Inc.
Attn: Subsite Electronics
PO Box 66
Perry, OK 73077-0066
USA
The descriptions and specifications in this manual are subject to
change. The Charles Machine Works, Inc. reserves the right to
improve equipment. Some product improvements may have
taken place after this manual was published.
Thank you for buying and using Ditch Witch Subsite Electronics
equipment.
FOREWORD
This manual is an important part of your equipment. It provides
safety information and operation instructions to help you use and
maintain your Ditch Witch Subsite Electronics equipment.
Read this manual before using your equipment. Keep it with the
equipment at all times for future reference. If you sell your
equipment, be sure to give this manual to the new owner.
If you need a replacement copy, contact your Ditch Witch Subsite
Electronics dealer. If you need assistance in locating a dealer,
visit our website at www.ditchwitch.com or write to the following
address:
The Charles Machine Works, Inc.
Attn: Subsite Electronics
PO Box 66
Perry, OK 73077-0066
USA
The descriptions and specifications in this manual are subject to
change. The Charles Machine Works, Inc. reserves the right to
improve equipment. Some product improvements may have
taken place after this manual was published.
Thank you for buying and using Ditch Witch Subsite Electronics
equipment.
4 950R/950T/970T - FOREWORD
SERVICE PROCEDURE
4 950R/950T/970T - FOREWORD
SERVICE PROCEDURE
Operator's Manual
950R/950T/970T
Issue No. 2.0/OP-3/04
Part Number 754-062
Copyright 2001, 2004
by The Charles Machine Works, Inc.,
Perry, Oklahoma
Subsite is a registered trademark of The Charles Machine Works,
Inc.
U.S. Patent No. 5,065,098; 4,881,083. Other U.S. and foreign patents
pending.
Operator's Manual
950R/950T/970T
Issue No. 2.0/OP-3/04
Part Number 754-062
Copyright 2001, 2004
by The Charles Machine Works, Inc.,
Perry, Oklahoma
Subsite is a registered trademark of The Charles Machine Works,
Inc.
U.S. Patent No. 5,065,098; 4,881,083. Other U.S. and foreign patents
pending.
950R/950T/970T - CONTENTS 5
SERVICE PROCEDURE
950R/950T/970T - CONTENTS 5
SERVICE PROCEDURE
CONTENTS
SUPPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Serial Number Record . . . . . . . . . . . . . . . . . . . . . . . . . 1
Service Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
RECEIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Controls (Single Key) . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Controls (Double Key) . . . . . . . . . . . . . . . . . . . . . . . . 11
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
950T TRANSMITTER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
970T TRANSMITTER. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Controls (Single Key) . . . . . . . . . . . . . . . . . . . . . . . . . 28
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
CONTENTS
SUPPORT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Serial Number Record . . . . . . . . . . . . . . . . . . . . . . . . . 1
Service Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
FOREWORD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
RECEIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Controls (Single Key) . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
950T TRANSMITTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
970T TRANSMITTER . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Controls (Single Key) . . . . . . . . . . . . . . . . . . . . . . . . . 28
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6 950R/950T/970T - CONTENTS
SERVICE PROCEDURE
6 950R/950T/970T - CONTENTS
SERVICE PROCEDURE
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Safety Alert Classifications . . . . . . . . . . . . . . . . . . . . 36
Safety Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Choose Signal Type . . . . . . . . . . . . . . . . . . . . . . . . . 39
Choose Antenna Configuration . . . . . . . . . . . . . . . . . 41
Choose Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Recognize Common Signal Problems . . . . . . . . . . . . 44
Locate Line: Active Location . . . . . . . . . . . . . . . . . . . 46
Locate Line: Beacon . . . . . . . . . . . . . . . . . . . . . . . . . 55
Locate Line: Passive Location . . . . . . . . . . . . . . . . . . 57
CARE AND ERROR CODES . . . . . . . . . . . . . . . . . . . . . . 61
General Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
950 Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
950 Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
970 Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Safety Alert Classifications . . . . . . . . . . . . . . . . . . . . 36
Safety Alerts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Choose Signal Type . . . . . . . . . . . . . . . . . . . . . . . . . 39
Choose Antenna Configuration . . . . . . . . . . . . . . . . . 41
Choose Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Recognize Common Signal Problems . . . . . . . . . . . 44
Locate Line: Active Location . . . . . . . . . . . . . . . . . . . 46
Locate Line: Beacon . . . . . . . . . . . . . . . . . . . . . . . . . 55
Locate Line: Passive Location . . . . . . . . . . . . . . . . . 57
CARE AND ERROR CODES . . . . . . . . . . . . . . . . . . . . . . 61
General Care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
950 Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
950 Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
970 Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
950R/950T/970T - RECEIVER 7
OVERVIEW
OVERVIEW
RECEIVER
OVERVIEW
The 950R receiver is designed to locate buried pipes, lines, and
cables. Several frequencies and modes of operation are available
to suit your specific locating needs.
RECEIVER
OVERVIEW
The 950R receiver is designed to locate buried pipes, lines, and
cables. Several frequencies and modes of operation are available
to suit your specific locating needs.
8 950R/950T/970T - RECEIVER
OVERVIEW
8 950R/950T/970T - RECEIVER
OVERVIEW
Available passive modes include 50Hz, 50P, 60Hz, and 60P
power, radio, and 31 kHz CATV.
Available active modes include 512 Hz, 1 kHz, 8 kHz, 29 kHz, 80
kHz, and 200 kHz for use with Ditch Witch Subsite transmitters.
400 Hz, 560 Hz, and 815 Hz modes also are available with the
950R, but are not transmitted by the 950T or 970T.
Available beacon modes include 512 Hz, 29 kHz, and 33 kHz for
locating non-metallic pipes.
The 950R has six keypad buttons and a display. Descriptions of
the buttons and display follow.
Available passive modes include 50Hz, 50P, 60Hz, and 60P
power, radio, and 31 kHz CATV.
Available active modes include 512 Hz, 1 kHz, 8 kHz, 29 kHz, 80
kHz, and 200 kHz for use with Ditch Witch Subsite transmitters.
400 Hz, 560 Hz, and 815 Hz modes also are available with the
950R, but are not transmitted by the 950T or 970T.
Available beacon modes include 512 Hz, 29 kHz, and 33 kHz for
locating non-metallic pipes.
The 950R has six keypad buttons and a display. Descriptions of
the buttons and display follow.
CONTROLS (SINGLE KEY)
ON/OFF
Turns unit on and off.
Press once to turn on.
Press again to turn off.
ANT SEL
Selects single, twin, null, or left/right arrow
antenna modes.
Up Arrow
Press to increase manual gain incrementally
from 20% to 80%.
If signal is below 20%, press once to raise
gain (increase signal) to approximately 50%.
To disable this feature:
1. Ensure that unit is off.
2. Press and hold the down arrow.
3. Turn unit on.
ON/OFF
ANT SEL
Selects single, twin, null, or left/right arrow
antenna modes.
Up Arrow
Press to increase manual gain incrementally
from 20% to 80%.
If signal is below 20%, press once to raise
gain (increase signal) to approximately 50%.
3. Turn unit on.
10 950R/950T/970T - RECEIVER
10 950R/950T/970T - RECEIVER
Down Arrow
Press to decrease manual gain incrementally
from 20% to 80%.
If signal is above 80%, press once to lower
gain (decrease signal) to approximately 50%.
3. Turn unit on.
MODE
Selects operating frequency.
DEPTH
Estimates depth of signal or shows amount of
current on the target line.
Press once to estimate depth of properly
located signal source.
Press and hold to show amount of current
on the target line in milliamps (mA).
See OPERATION for information on locating signals.
Down Arrow
Press to decrease manual gain incrementally
from 20% to 80%.
If signal is above 80%, press once to lower
gain (decrease signal) to approximately 50%.
3. Turn unit on.
MODE
Selects operating frequency.
DEPTH
Estimates depth of signal or shows amount of
current on the target line.
Press once to estimate depth of properly
located signal source.
Press and hold to show amount of current
on the target line in milliamps (mA).
See OPERATION for information on locating signals.
950R/950T/970T - RECEIVER 11
CONTROLS (DOUBLE KEY)
950R/950T/970T - RECEIVER 11
Press and hold DEPTH and press the indicated button to use the
functions below.
DEPTH + ANT SEL
Turns on backlight.
DEPTH + Up Arrow
Changes volume.
Press and hold DEPTH and press the indicated button to use the
functions below.
DEPTH + ANT SEL
Turns on backlight.
DEPTH + Up Arrow
Changes volume.
12 950R/950T/970T - RECEIVER
12 950R/950T/970T - RECEIVER
DEPTH + Down Arrow
Changes the units of measurement in which the depth displays.
Available displays are ft/in, in, cm, or m.
DEPTH + MODE
Shows percent of battery life remaining.
DEPTH + Down Arrow
Changes the units of measurement in which the depth displays.
Available displays are ft/in, in, cm, or m.
DEPTH + MODE
Shows percent of battery life remaining.
950R/950T/970T - RECEIVER 13
DISPLAY
950R/950T/970T - RECEIVER 13
DISPLAY
DISPLAY
Mode
The receiver can be configured to operate in five modes:
cable TV
power
beacon
radio
transmitter
The icon for the currently selected mode is shown along the
bottom of the display.
IMPORTANT: Your unit might not contain all options. See your
Ditch Witch Subsite dealer for upgrade information.
Cable TV
Allows receiver to passively trace cable TV
lines (31 kHz) as long as TV is on.
IMPORTANT: If TV is off, use a transmitter and
actively locate line.
DISPLAY
Mode
The receiver can be configured to operate in five modes:
cable TV
power
beacon
radio
transmitter
The icon for the currently selected mode is shown along the
bottom of the display.
IMPORTANT: Your unit might not contain all options. See your
Ditch Witch Subsite dealer for upgrade information.
Cable TV
Allows receiver to passively trace cable TV
lines (31 kHz) as long as TV is on.
IMPORTANT: If TV is off, use a transmitter and
actively locate line.
14 950R/950T/970T - RECEIVER
DISPLAY
14 950R/950T/970T - RECEIVER
DISPLAY
Power
Allows receiver to trace live 50 Hz or 60 Hz
power lines.
IMPORTANT: Current must be flowing through
the line.
Beacon
Allows receiver to trace nonmetallic pipes and
conduits with 29 kHz, 33 kHz, or 512 Hz
beacon.
Radio
Allows receiver to trace lines that pick up and
radiate very low frequency (VLF) radio waves.
Transmitter
Allows receiver to trace lines that have had a
512 Hz, 1 kHz, 8 kHz, 29 kHz, 80 kHz, or 200
kHz signal placed on them by a transmitter.
Power
Allows receiver to trace live 50 Hz or 60 Hz
power lines.
IMPORTANT: Current must be flowing through
the line.
Beacon
Allows receiver to trace nonmetallic pipes and
conduits with 29 kHz, 33 kHz, or 512 Hz
beacon.
Radio
Allows receiver to trace lines that pick up and
radiate very low frequency (VLF) radio waves.
Transmitter
Allows receiver to trace lines that have had a
512 Hz, 1 kHz, 8 kHz, 29 kHz, 80 kHz, or 200
kHz signal placed on them by a transmitter.
950R/950T/970T - RECEIVER 15
DISPLAY
950R/950T/970T - RECEIVER 15
DISPLAY
Frequency
The receiver can be configured to recognize
nine transmitter frequencies: 400 Hz, 512 Hz,
560 Hz, 815 Hz, 1 kHz, 8 kHz, 29 kHz, 80
kHz, and 200 kHz.
IMPORTANT: 400 Hz, 560 Hz, and 815 Hz
cannot be transmitted by the 950T or 970T.
Selected frequency is displayed in the lower right corner of the
display.
Antenna
The receiver has four antenna modes described below. The
selected antenna mode is indicated by an arrow on the left side of
the display.
Single
Use in congested areas and to locate deeper
lines. Signal strength peaks when receiver is
over the line being located. Is less precise
than other modes.
Frequency
The receiver can be configured to recognize
nine transmitter frequencies: 400 Hz, 512 Hz,
560 Hz, 815 Hz, 1 kHz, 8 kHz, 29 kHz, 80
kHz, and 200 kHz.
IMPORTANT: 400 Hz, 560 Hz, and 815 Hz
cannot be transmitted by the 950T or 970T.
Selected frequency is displayed in the lower right corner of the
display.
Antenna
The receiver has four antenna modes described below. The
selected antenna mode is indicated by an arrow on the left side of
the display.
Single
Use in congested areas and to locate deeper
lines. Signal strength peaks when receiver is
over the line being located. Is less precise
than other modes.
16 950R/950T/970T - RECEIVER
DISPLAY
16 950R/950T/970T - RECEIVER
DISPLAY
Twin
Gives sharper location than single antenna.
Signal strength peaks when receiver is over
the line being located.
Null
Gives precise response when locating lines in
uncongested areas. Signal drops to minimum
strength when receiver is over the line being
located. In congested areas, confirm location
by using single or twin peak antenna.
Left/Right
Indicates position of receiver relative to the
line being located. Used primarily for active
mode, but can also be used as a fore/aft
indicator in beacon mode.
Move receiver in the direction of the arrow.
When receiver is over the line, both arrows display and two
beeps sound.
Twin
Gives sharper location than single antenna.
Signal strength peaks when receiver is over
the line being located.
Null
Gives precise response when locating lines in
uncongested areas. Signal drops to minimum
strength when receiver is over the line being
located. In congested areas, confirm location
by using single or twin peak antenna.
Left/Right
Indicates position of receiver relative to the
line being located. Used primarily for active
mode, but can also be used as a fore/aft
indicator in beacon mode.
Move receiver in the direction of the arrow.
When receiver is over the line, both arrows display and two
beeps sound.
950R/950T/970T - RECEIVER 17
DISPLAY
950R/950T/970T - RECEIVER 17
DISPLAY
Signal Strength
Signal strength is shown by bars
at top of display and in numeric
display.
Gain
Gain (amount of signal
amplification) is shown by bars
below signal strength indicator.
Gain increases to the right.
Signal Strength
Signal strength is shown by bars
at top of display and in numeric
display.
Gain
Gain (amount of signal
amplification) is shown by bars
below signal strength indicator.
Gain increases to the right.
18 950R/950T/970T - RECEIVER
DISPLAY
18 950R/950T/970T - RECEIVER
DISPLAY
Depth
Estimated depth displays when DEPTH
button is pressed.
Receiver can display in four units of
measurement: feet/inches, inches, cm, or m.
To select units, press and hold DEPTH and
press the down arrow.
IMPORTANT: If four dashes
appear in the display, the receiver
is detecting a signal above it and
cannot estimate depth. This
message is usually caused by
interfering signals or a weak signal.
Try relocating target signal.
Current
Estimated current on target line is
displayed in mA when DEPTH
button is pressed and held.
The higher the number, the higher the current on the target line.
IMPORTANT: Current reading should be stable or drop as line is
located, except at the ends where current may be higher.
Depth
Estimated depth displays when DEPTH
button is pressed.
Receiver can display in four units of
measurement: feet/inches, inches, cm, or m.
To select units, press and hold DEPTH and
press the down arrow.
IMPORTANT: If four dashes
appear in the display, the receiver
is detecting a signal above it and
cannot estimate depth. This
message is usually caused by
interfering signals or a weak signal.
Try relocating target signal.
Current
Estimated current on target line is
displayed in mA when DEPTH
button is pressed and held.
The higher the number, the higher the current on the target line.
IMPORTANT: Current reading should be stable or drop as line is
located, except at the ends where current may be higher.
950R/950T/970T - RECEIVER 19
DISPLAY
950R/950T/970T - RECEIVER 19
DISPLAY
Volume Level
Receiver has four volume levels: off, low,
medium, and high. To select volume setting,
press and hold DEPTH and press the up
arrow.
IMPORTANT: Lower volume to conserve
battery life.
Receiver Battery Level
Receiver battery level is shown by battery
icon on right side of display.
Three segments mean that batteries are
at full power.
One segment means that batteries are at
low power.
No segments and a flashing outline means that you should
change batteries immediately.
IMPORTANT: To see percentage of battery life remaining, press
and hold DEPTH and press MODE.
Volume Level
Receiver has four volume levels: off, low,
medium, and high. To select volume setting,
press and hold DEPTH and press the up
arrow.
IMPORTANT: Lower volume to conserve
battery life.
Receiver Battery Level
Receiver battery level is shown by battery
icon on right side of display.
Three segments mean that batteries are
at full power.
One segment means that batteries are at
low power.
No segments and a flashing outline means that you should
change batteries immediately.
IMPORTANT: To see percentage of battery life remaining, press
and hold DEPTH and press MODE.
20 950R/950T/970T - RECEIVER
SETUP
20 950R/950T/970T - RECEIVER
SETUP
SETUP
Install Batteries
Use six C-cell alkaline batteries in
receiver.
To install:
1. Unscrew battery cover.
2. Insert batteries as shown.
3. Close cover and tighten
screw.
4. Check operation.
Check Operation
Always check that receiver is
operating before leaving for jobsite
and after every battery change.
To check operation:
1. Turn on receiver.
2. Entire display will light briefly.
3. Display will show battery level
and last used setting.
SETUP
Install Batteries
Use six C-cell alkaline batteries in
receiver.
To install:
3. Close cover and tighten
screw.
4. Check operation.
Check Operation
Always check that receiver is
To check operation:
2. Entire display will light briefly.
and last used setting.
950R/950T/970T - 950T TRANSMITTER 21
OVERVIEW
OVERVIEW
950T TRANSMITTER
OVERVIEW
The 950T transmitter is designed to place signals on target lines.
It can be configured to send 512 Hz, 1 kHz, 8 kHz, 29 kHz, 80
kHz, and dual (8 kHz and 29 kHz) frequencies. It places a signal
on the line through either direct connection, induction clamping,
or broadcast modes.
The transmitter has six keypad buttons and a display.
Descriptions of the buttons and display follow.
950T TRANSMITTER
OVERVIEW
kHz, and dual (8 kHz and 29 kHz) frequencies. It places a signal
on the line through either direct connection, induction clamping,
or broadcast modes.
22 950R/950T/970T - 950T TRANSMITTER
CONTROLS
CONTROLS
CONTROLS
ON/OFF
Power Output Up
Raises power output by increments from
minimum to maximum.
Power Output Down
Lowers power output by increments from
maximum to minimum.
CONTROLS
ON/OFF
Power Output Up
minimum to maximum.
Power Output Down
maximum to minimum.
CONTROLS
CONTROLS
FREQUENCY
Selects one of six transmitter frequencies:
512 Hz, 1 kHz, 8 kHz, 29 kHz, 80 kHz, or
F1:F2 (8 kHz and 29 kHz dual).
VOLUME
Turns transmitter volume on or off.
Press once to turn volume on.
Press again to turn volume off.
TIMER
Sets transmitter timer.
Press once to set timer to one hour.
Press again to increase timer by one hour,
up to a maximum of eight hours.
For continuous use, set to zero. Press until 0:00 displays.
Transmitter will transmit a frequency for the number of hours
selected and then turn itself off.
FREQUENCY
512 Hz, 1 kHz, 8 kHz, 29 kHz, 80 kHz, or
F1:F2 (8 kHz and 29 kHz dual).
VOLUME
Turns transmitter volume on or off.
Press once to turn volume on.
Press again to turn volume off.
TIMER
DISPLAY
DISPLAY
DISPLAY
Frequency
The transmitter can send six signal
frequencies: 512 Hz, 1 kHz, 8 kHz, 29 kHz,
and 80 kHz. Dual frequency (F1:F2) transmits
both 8 kHz and 29 kHz signals.
Power Level
The transmitter has ten power
levels.
In direct connect and induction
clamp modes, a tone indicates
satisfactory connection. The
higher the number, the more
current is flowing into the target
line.
In broadcast mode, a beeping
tone indicates that current is
flowing from the transmitter.
IMPORTANT: To conserve battery life, lower the power level to
the lowest usable level.
IMPORTANT: See OPERATION for further description of location
modes.
DISPLAY
Frequency
The transmitter can send six signal
frequencies: 512 Hz, 1 kHz, 8 kHz, 29 kHz,
and 80 kHz. Dual frequency (F1:F2) transmits
both 8 kHz and 29 kHz signals.
Power Level
levels.
line.
modes.
DISPLAY
DISPLAY
Timer
The transmitter will shut off at one-hour
increments up to a maximum of eight hours.
To select shutoff time:
Press TIMER button once to set timer to
one hour.
Press again to increase timer by one hour, up to a maximum
of eight hours.
For continuous use, set to zero. Press TIMER button until
0:00 displays.
Timer
one hour.
of eight hours.
0:00 displays.
SETUP
SETUP
SETUP
Install Batteries
Use eight D-cell alkaline batteries
in transmitter.
To install:
3. Close and tighten battery
cover.
4. Check operation.
Check Operation
Always check that transmitter is
To check operation:
1. Turn on transmitter.
2. Transmitter will beep.
percentage and last used
frequency setting.
SETUP
Install Batteries
in transmitter.
To install:
cover.
4. Check operation.
Check Operation
To check operation:
percentage and last used
frequency setting.
OVERVIEW
OVERVIEW
970T TRANSMITTER
OVERVIEW
kHz, 200 kHz, and dual (8 kHz and 29 kHz) frequencies. It places
a signal on the line through either direct connection, induction
clamping, or broadcast modes.
ss1140h.eps
970T TRANSMITTER
OVERVIEW
kHz, 200 kHz, and dual (8 kHz and 29 kHz) frequencies. It places
a signal on the line through either direct connection, induction
clamping, or broadcast modes.
ss1140h.eps
ON/OFF
Power Output Up
minimum to maximum.
Power Output Down
maximum to minimum.
ON/OFF
Power Output Up
minimum to maximum.
Power Output Down
maximum to minimum.
FREQUENCY
512 Hz, 1 kHz, 8 kHz, 29 kHz, 80 kHz, 200
kHz, or dual (8 kHz and 29 kHz).
2ND
Allows access to second key functions. See
Controls (Double Key) for more information.
TIMER
si0017h.eps
2ND
FREQUENCY
512 Hz, 1 kHz, 8 kHz, 29 kHz, 80 kHz, 200
kHz, or dual (8 kHz and 29 kHz).
2ND
Allows access to second key functions. See
Controls (Double Key) for more information.
TIMER
si0017h.eps
2ND
Press and hold 2ND and press the indicated button to use the
functions below.
2ND + Power Output Down
Changes volume.
2ND + Timer
Turns on backlight. Icon will display on screen.
2ND + Frequency
Changes mode.
Press once to see current in milliamps.
Press again to see voltage generated by transmitter.
Press again to display voltage on line.
Press again to see resistance in ohms.
Press and hold 2ND and press the indicated button to use the
functions below.
2ND + Power Output Down
Changes volume.
2ND + Timer
Turns on backlight. Icon will display on screen.
2ND + Frequency
Changes mode.
Press once to see current in milliamps.
Press again to see voltage generated by transmitter.
Press again to display voltage on line.
Press again to see resistance in ohms.
DISPLAY
DISPLAY
DISPLAY
Frequency
The transmitter can be configured to send
seven signal frequencies: 512 Hz, 1 kHz, 8
kHz, 29 kHz, 80 kHz, and 200 kHz. Dual
frequency (F1:F2) transmits both 8 kHz and
29 kHz signals.
Power Level
levels.
line.
modes.
DISPLAY
Frequency
The transmitter can be configured to send
seven signal frequencies: 512 Hz, 1 kHz, 8
kHz, 29 kHz, 80 kHz, and 200 kHz. Dual
frequency (F1:F2) transmits both 8 kHz and
29 kHz signals.
Power Level
levels.
line.
modes.
CIRCUIT BREAKER
CIRCUIT BREAKER
Timer
one hour.
of eight hours.
0:00 displays.
CIRCUIT BREAKER
A built-in circuit breaker will automatically disable transmitter
when leads are connected to a live cable. Additionally, display will
flash and transmitter will beep.
To reset circuit breaker, turn off transmitter and disconnect from
cable.
Timer
one hour.
of eight hours.
0:00 displays.
CIRCUIT BREAKER
A built-in circuit breaker will automatically disable transmitter
when leads are connected to a live cable. Additionally, display will
flash and transmitter will beep.
To reset circuit breaker, turn off transmitter and disconnect from
cable.
SETUP
SETUP
SETUP
Install Batteries
in transmitter.
To install:
cover.
4. Check operation.
Check Operation
To check operation:
and last used frequency
setting.
SETUP
Install Batteries
in transmitter.
To install:
cover.
4. Check operation.
Check Operation
To check operation:
and last used frequency
setting.
SETUP
SETUP
950R/950T/970T - SAFETY 35
SETUP
950R/950T/970T - SAFETY 35
SETUP
SAFETY
Follow these guidelines before operating any jobsite equipment:
Read and follow all safety precautions.
Complete proper training and read operators manual before
using equipment.
Use equipment only as directed.
Contact One-Call (888-258-0808) and any utility companies
which do not subscribe to One-Call. Have all underground
pipes and cables located and marked before sweeping area.
Classify jobsite based on its hazards and use correct tools
and machinery, safety equipment, and work methods for
jobsite.
Wear personal protective equipment.
Check that equipment is in good condition, and test leads are
clean and have no cracked insulation.
Contact your Ditch Witch Subsite dealer if you have any
question about operation, maintenance, or equipment use.
SAFETY
Follow these guidelines before operating any jobsite equipment:
Read and follow all safety precautions.
Complete proper training and read operators manual before
using equipment.
Use equipment only as directed.
Contact One-Call (888-258-0808) and any utility companies
which do not subscribe to One-Call. Have all underground
pipes and cables located and marked before sweeping area.
Classify jobsite based on its hazards and use correct tools
and machinery, safety equipment, and work methods for
jobsite.
Wear personal protective equipment.
Check that equipment is in good condition, and test leads are
clean and have no cracked insulation.
Contact your Ditch Witch Subsite dealer if you have any
question about operation, maintenance, or equipment use.
36 950R/950T/970T - SAFETY
SAFETY ALERT CLASSIFICATIONS
36 950R/950T/970T - SAFETY
These classifications and the icons defined on the following
pages work together to alert you to situations which could be
harmful to you, jobsite bystanders or your equipment. When you
see these words and icons in the book or on the machine,
carefully read and follow all instructions. YOUR SAFETY IS AT
STAKE.
Watch for the three safety alert levels: DANGER, WARNING and
CAUTION. Learn what each level means.
indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
indicates a potentially hazardous situation which,
if not avoided, could result in death or serious injury.
if not avoided, may result in minor or moderate injury.
Watch for two other words: NOTICE and IMPORTANT.
NOTICE can keep you from doing something that might damage
the machine or someone's property. It can also alert you against
unsafe practices.
IMPORTANT can help you do a better job or make your job
easier in some way.
These classifications and the icons defined on the following
pages work together to alert you to situations which could be
harmful to you, jobsite bystanders or your equipment. When you
see these words and icons in the book or on the machine,
carefully read and follow all instructions. YOUR SAFETY IS AT
STAKE.
Watch for the three safety alert levels: DANGER, WARNING and
CAUTION. Learn what each level means.
indicates an imminently hazardous situation
which, if not avoided, will result in death or serious injury.
if not avoided, could result in death or serious injury.
if not avoided, may result in minor or moderate injury.
Watch for two other words: NOTICE and IMPORTANT.
NOTICE can keep you from doing something that might damage
the machine or someone's property. It can also alert you against
unsafe practices.
IMPORTANT can help you do a better job or make your job
easier in some way.
950R/950T/970T - SAFETY 37
SAFETY ALERTS
950R/950T/970T - SAFETY 37
SAFETY ALERTS
SAFETY ALERTS
Incorrect procedures could result
in death, injury, or property damage. Learn to use
equipment correctly.
NOTICES:
Electric shock or equipment damage can result if transmitter
is connected directly to live cable. Have qualified personnel
disconnect both ends of cable before working or use live
power adapter.
Turn off transmitter when connecting or moving ground stake.
If target depth and location are critical, confirm by hand-
digging.
Do not operate transmitter with a worn keypad. Electric shock
can occur.
Use personal protective equipment rated for voltage and
current of power conductor being connected to as defined by
OSHA standards when using live power adapter.
Electric shock. This device
produces electric current that could cause death or
serious injury. Use proper procedures.
SAFETY ALERTS
Incorrect procedures could result
in death, injury, or property damage. Learn to use
equipment correctly.
NOTICES:
Electric shock or equipment damage can result if transmitter
is connected directly to live cable. Have qualified personnel
disconnect both ends of cable before working or use live
power adapter.
Turn off transmitter when connecting or moving ground stake.
If target depth and location are critical, confirm by hand-
digging.
Do not operate transmitter with a worn keypad. Electric shock
can occur.
Electric shock. This device
produces electric current that could cause death or
serious injury. Use proper procedures.
38 950R/950T/970T - SAFETY
SAFETY ALERTS
38 950R/950T/970T - SAFETY
SAFETY ALERTS
Explosion possible. Do not
operate transmitter near explosive devices or
blasting operations.
J obsite hazards
could cause death or serious injury.
Use correct equipment and work
methods. Use and maintain proper
safety equipment.
Moving traffic - hazardous
situation. Death or serious injury could result.
Avoid moving vehicles, wear high visibility clothing,
post appropriate warning signs.
Explosion possible. Do not
operate transmitter near explosive devices or
blasting operations.
J obsite hazards
safety equipment.
Moving traffic - hazardous
situation. Death or serious injury could result.
Avoid moving vehicles, wear high visibility clothing,
post appropriate warning signs.
950R/950T/970T - OPERATION 39
CHOOSE SIGNAL TYPE
CHOOSE SIGNAL TYPE
OPERATION
This section contains basic information about choosing signal
type and antenna configuration, avoiding and correcting common
signal problems, and three types of locating.
CHOOSE SIGNAL TYPE
The 950R can detect two types of signals:
Active signals are placed on a target line with the transmitter
and detected by the receiver. As an option, an active signal
from a beacon can also be detected by the receiver.
Passive signals reside on the target line and are read by
receiver.
Read the descriptions on the next page and determine the signal
type to use for your job.
OPERATION
This section contains basic information about choosing signal
type and antenna configuration, avoiding and correcting common
signal problems, and three types of locating.
CHOOSE SIGNAL TYPE
The 950R can detect two types of signals:
Active signals are placed on a target line with the transmitter
and detected by the receiver. As an option, an active signal
from a beacon can also be detected by the receiver.
Passive signals reside on the target line and are read by
receiver.
Read the descriptions on the next page and determine the signal
type to use for your job.
40 950R/950T/970T - OPERATION
CHOOSE SIGNAL TYPE
CHOOSE SIGNAL TYPE
Active
There are three ways to place active signals on a target line with
a transmitter:
Direct connection (preferred method) requires a connection
to be made directly onto target line.
Induction requires placing an optional induction clamp
around target line.
Broadcast method sends current into lines near the
transmitter.
Beacon
Beacon signals allow nonmetal pipe tracing and bore tracking.
Passive
Some utility lines pick up signals from the environment and carry
them as detectable signals. These passive signals can be power
signals or radio signals.
Active
There are three ways to place active signals on a target line with
a transmitter:
Direct connection (preferred method) requires a connection
to be made directly onto target line.
Induction requires placing an optional induction clamp
around target line.
Broadcast method sends current into lines near the
transmitter.
Beacon
Beacon signals allow nonmetal pipe tracing and bore tracking.
Passive
Some utility lines pick up signals from the environment and carry
them as detectable signals. These passive signals can be power
signals or radio signals.
CHOOSE ANTENNA CONFIGURATION
The 950R receiver has four antenna configurations:
Single Peak
Uses one horizontal antenna to detect signal. Response is
highest at strongest signal.
Twin Peak
Uses two horizontal antenna to detect signal. Response is
Null
Uses a vertical antenna to detect signal. Search width is narrower
than single peak. Response is lowest when receiver is over the
line.
Left/Right
Uses a combination of one horizontal antenna and one vertical
antenna to detect signal. Displays arrows to guide the operator to
the line.
IMPORTANT: It is best to verify left/right location using twin peak
antenna.
The 950R receiver has four antenna configurations:
Single Peak
Uses one horizontal antenna to detect signal. Response is
Twin Peak
Uses two horizontal antenna to detect signal. Response is
Null
Uses a vertical antenna to detect signal. Search width is narrower
than single peak. Response is lowest when receiver is over the
line.
Left/Right
Uses a combination of one horizontal antenna and one vertical
antenna to detect signal. Displays arrows to guide the operator to
the line.
IMPORTANT: It is best to verify left/right location using twin peak
antenna.
Advantages/Disadvantages
Read the descriptions below and determine the antenna
configuration that best fits your job.
Antenna Advantages Disadvantages
single peak more range less precise
twin peak most precise less range
null sharp response easily distorted in congested
areas
left/right easy to use for
most locating
jobs
easily distorted in congested
areas
Read the descriptions below and determine the antenna
configuration that best fits your job.
Antenna Advantages Disadvantages
single peak more range less precise
twin peak most precise less range
null sharp response easily distorted in congested
areas
left/right easy to use for
most locating
jobs
easily distorted in congested
areas
CHOOSE FREQUENCY
CHOOSE FREQUENCY
CHOOSE FREQUENCY
Transmitter
The 950T transmitter can send the following frequency signals:
512 Hz, 1K, 8K, 29K, 80K, and F1:F2 (8K and 29K dual).
The 970T transmitter can be configured to send the following
frequency signals: 512 Hz, 1K, 8K, 29K, 80K, 200K, and F1:F2
(8K and 29K dual).
Read the general statements below to help determine the
transmitter frequency that best fits your job:
Lower frequencies travel farther than higher frequencies.
Higher frequencies couple onto lines more easily.
Higher frequencies also couple onto lines other than the
target line more easily.
Receiver
The standard 950R receiver is configured to display information
in the six transmitter frequencies listed above for the 950T, as
well as 33 kHz (EML) and 50 Hz or 60 Hz (power).
Optional receiver frequencies include: 31 kHz (CATV), 29 kHz
(beacon), 33 kHz (beacon), 512 Hz (beacon), 400 Hz, 560 Hz,
815 Hz, 200 kHz, 60P, 50P, and radio. See your Ditch Witch
Subsite dealer for upgrade information.
CHOOSE FREQUENCY
Transmitter
The 950T transmitter can send the following frequency signals:
512 Hz, 1K, 8K, 29K, 80K, and F1:F2 (8K and 29K dual).
The 970T transmitter can be configured to send the following
frequency signals: 512 Hz, 1K, 8K, 29K, 80K, 200K, and F1:F2
(8K and 29K dual).
Read the general statements below to help determine the
transmitter frequency that best fits your job:
Lower frequencies travel farther than higher frequencies.
Higher frequencies couple onto lines more easily.
Higher frequencies also couple onto lines other than the
target line more easily.
Receiver
The standard 950R receiver is configured to display information
in the six transmitter frequencies listed above for the 950T, as
well as 33 kHz (EML) and 50 Hz or 60 Hz (power).
Optional receiver frequencies include: 31 kHz (CATV), 29 kHz
(beacon), 33 kHz (beacon), 512 Hz (beacon), 400 Hz, 560 Hz,
815 Hz, 200 kHz, 60P, 50P, and radio. See your Ditch Witch
Subsite dealer for upgrade information.
RECOGNIZE COMMON SIGNAL PROBLEMS
Distortions in the electromagnetic field around a line can affect
location and depth accuracy. Tees, bends, parallel lines, crossing
lines, or large metallic objects can distort signals.
NOTICE: If target depth and location are critical, confirm by hand-
digging or vacuum excavation.
Learn to recognize the following kinds of distortion:
Shadows
Shadows, also called blind spots, often happen when a metallic
object partially obstructs signal, or a signal from a parallel line
interferes with target signal.
False Signals
False signals describe situations where the receiver indicates a
line location where there is no line. False signals often happen
when a line tees or bends, runs parallel to the target line, or
crosses the target line.
IMPORTANT: Generally, the receiver shows less distortion in twin
peak antenna configuration.
Distortions in the electromagnetic field around a line can affect
location and depth accuracy. Tees, bends, parallel lines, crossing
lines, or large metallic objects can distort signals.
NOTICE: If target depth and location are critical, confirm by hand-
digging or vacuum excavation.
Learn to recognize the following kinds of distortion:
Shadows
Shadows, also called blind spots, often happen when a metallic
object partially obstructs signal, or a signal from a parallel line
interferes with target signal.
False Signals
False signals describe situations where the receiver indicates a
line location where there is no line. False signals often happen
when a line tees or bends, runs parallel to the target line, or
crosses the target line.
IMPORTANT: Generally, the receiver shows less distortion in twin
peak antenna configuration.
Secondary (Ghost) Signals
A typical beacon signal pattern shows a main signal and two
weaker secondary signals. Identify beacon location at the main
signal. Familiarity with beacon signal patterns will lessen the
effect of ghost signals.
Secondary (Ghost) Signals
A typical beacon signal pattern shows a main signal and two
weaker secondary signals. Identify beacon location at the main
signal. Familiarity with beacon signal patterns will lessen the
effect of ghost signals.
LOCATE LINE: ACTIVE LOCATION
Setup
Follow setup procecudures for the type of locating you will be
doing: direct connection, induction clamp, connecting to live
power with live power adapter, or broadcast induction.
Direct Connection
J obsite hazards
safety equipment.
NOTICE: Electric shock or equipment damage can result if
transmitter is connected directly to live cable. Contact qualified
utility personnel and follow all local standards and restrictions for
disconnecting and grounding lines.
Setup
Follow setup procecudures for the type of locating you will be
doing: direct connection, induction clamp, connecting to live
power with live power adapter, or broadcast induction.
Direct Connection
J obsite hazards
safety equipment.
To set up transmitter for direct connection:
1. Drive ground stake.
2. Plug cable into transmitter.
3. Hook black lead to ground stake.
4. Hook red lead to line.
6. Check battery level.
7. Choose frequency and shutoff time. See Choose
Frequency earlier in this chapter.
NOTICE: Turn off transmitter when connecting or moving ground
stake.
To set up transmitter for direct connection:
1. Drive ground stake.
3. Hook black lead to ground stake.
4. Hook red lead to line.
NOTICE: Turn off transmitter when connecting or moving ground
stake.
Induction Clamp
J obsite hazards
safety equipment.
To set up transmitter for use with induction clamp:
2. Place clamp around line.
Induction Clamp
J obsite hazards
safety equipment.
To set up transmitter for use with induction clamp:
2. Place clamp around line.
Connecting to Live Power with Live Power Adapter
J obsite hazards
safety equipment.
NOTICE:
Do not operate equipment unless you are properly qualified to
work on live power conductors.
Do not connect to a conductor with a voltage greater than
480V.
Connecting to Live Power with Live Power Adapter
J obsite hazards
safety equipment.
NOTICE:
Do not operate equipment unless you are properly qualified to
work on live power conductors.
Do not connect to a conductor with a voltage greater than
480V.
To set up transmitter for use with live power adapter:
1. Verify that transmitter (1) is turned off.
2. Connect live power adapter (2) to the transmitter.
3. Connect live power adapter black lead to the ground stake
(4).
4. Connect live power adapter red lead to live power conductor
(3).
6. Select frequency greater than 8 kHz (29 kHz is preferred).
7. Adjust power level as needed.
IMPORTANT: When finished locating the line, turn off transmitter,
disconnect live power adapter red lead from live power conductor,
disconnect live power adapter black lead from ground stake, and
disconnect live power adapter from transmitter.
To set up transmitter for use with live power adapter:
1. Verify that transmitter (1) is turned off.
2. Connect live power adapter (2) to the transmitter.
3. Connect live power adapter black lead to the ground stake
(4).
4. Connect live power adapter red lead to live power conductor
(3).
6. Select frequency greater than 8 kHz (29 kHz is preferred).
7. Adjust power level as needed.
IMPORTANT: When finished locating the line, turn off transmitter,
disconnect live power adapter red lead from live power conductor,
disconnect live power adapter black lead from ground stake, and
disconnect live power adapter from transmitter.
Broadcast Induction
To set up transmitter for broadcast induction:
1. Remove cable, stake, clamp and any other metal objects
from transmitter.
2. Place transmitter parallel to and directly above suspected line
as shown.
5. Choose frequency, power level, and shutoff time. See
Choose Frequency earlier in this chapter.
Broadcast Induction
To set up transmitter for broadcast induction:
1. Remove cable, stake, clamp and any other metal objects
from transmitter.
2. Place transmitter parallel to and directly above suspected line
as shown.
5. Choose frequency, power level, and shutoff time. See
Choose Frequency earlier in this chapter.
Technique
IMPORTANT: Follow steps 1-3 for all types of active location. For
reference, the illustration below shows direct connection method.
If using broadcast induction, ensure that transmitter is in line with
and above suspected line, as shown on previous page.
1. Walk in an arc approximately 25 ft (7.5 m) around transmitter.
2. Hold the receiver so that the handle points toward the
transmitter, as shown.
3. Identify location of line by finding the spot with the strongest
signal response.
Technique
IMPORTANT: Follow steps 1-3 for all types of active location. For
reference, the illustration below shows direct connection method.
If using broadcast induction, ensure that transmitter is in line with
and above suspected line, as shown on previous page.
1. Walk in an arc approximately 25 ft (7.5 m) around transmitter.
2. Hold the receiver so that the handle points toward the
transmitter, as shown.
3. Identify location of line by finding the spot with the strongest
signal response.
4. Rotate the receiver to
determine which direction the
line runs.
IMPORTANT: Receiver
indicates the strongest signal
when the handle lines up with
the target line.
5. Press DEPTH button when
the line has been located.
6. Continue to trace the line and
take depth estimates every few paces.
IMPORTANT: Current measurement can be used as a line
identifier when transmitter is connected to target line. Current
on the target line should be higher that current on another line
that is picking up signal inductively from target line.
7. Retrace the line and mark with appropriate flags or paint.
line runs.
IMPORTANT: Receiver
when the handle lines up with
the target line.
5. Press DEPTH button when
the line has been located.
6. Continue to trace the line and
take depth estimates every few paces.
IMPORTANT: Current measurement can be used as a line
identifier when transmitter is connected to target line. Current
on the target line should be higher that current on another line
that is picking up signal inductively from target line.
7. Retrace the line and mark with appropriate flags or paint.
Special Situations
Situation What to try
Signal is lost. Walk in a circle to detect a tee or
bend in the line.
Signal varies from low to
high and is unstable.
Mark as a hand-dig area.
You are near a power line
and are receiving
interference such as
unstable depth readings,
blank display, etc.
Sweep the area in 50 Hz or 60 Hz
power mode. If receiver gives a
strong signal response, a power
line is interfering with transmitter
signal.
Receiver does not function
properly.
Receiver gain could be set too
high. Lower gain to locate the line.
Target line has
connections to other lines.
Disconnect target line from other
lines or use induction clamp to
focus signal on target line.
Signal is transferring to
other lines.
Lower the frequency.
Lower the power level.
Use direct connection, if
possible, or use induction
clamp.
Move the ground stake away
from the target line and away
from other buried lines.
Apply signal at the point where
the target line is farthest from
the other lines.
Four dashes appear on
the display and signal
strength and gain bars
flash.
Transmitter power level is set too
high and/or line is too shallow for
depth estimate. Select lowest
usable transmitter power level or
raise receiver high enough to
return display to normal operation.
Special Situations
bend in the line.
You are near a power line
and are receiving
interference such as
unstable depth readings,
blank display, etc.
Sweep the area in 50 Hz or 60 Hz
power mode. If receiver gives a
strong signal response, a power
line is interfering with transmitter
signal.
properly.
high. Lower gain to locate the line.
Target line has
connections to other lines.
Disconnect target line from other
lines or use induction clamp to
focus signal on target line.
Signal is transferring to
other lines.
Lower the frequency.
Lower the power level.
Use direct connection, if
possible, or use induction
clamp.
Move the ground stake away
from the target line and away
from other buried lines.
Apply signal at the point where
the target line is farthest from
the other lines.
flash.
raise receiver high enough to
return display to normal operation.
LOCATE LINE: BEACON
LOCATE LINE: BEACON
LOCATE LINE: BEACON
Trace non-metallic pipes or conduits by locating and following a
beacon signal.
IMPORTANT: Large metal objects and other signals (such as
railroad signals or overhead power lines) can distort signal.
Setup
To set up for beacon location:
1. Follow beacon manufacturers instructions on battery
installation and testing beacon operation.
2. Attach beacon to plumbers snake or flex rod.
LOCATE LINE: BEACON
Trace non-metallic pipes or conduits by locating and following a
beacon signal.
IMPORTANT: Large metal objects and other signals (such as
railroad signals or overhead power lines) can distort signal.
Setup
To set up for beacon location:
1. Follow beacon manufacturers instructions on battery
installation and testing beacon operation.
2. Attach beacon to plumbers snake or flex rod.
LOCATE LINE: BEACON
LOCATE LINE: BEACON
Technique
2. Set antenna configuration and signal source, and select
beacon frequency.
3. Place the beacon into the pipe and move it down the pipe.
4. To locate the beacon, circle over its approximate location in
the pipe.
5. To identify the location of beacon, find the spot with the
strongest signal response.
beacon runs.
IMPORTANT: Receiver
when handle is perpendicular
to the beacon.
7. Press DEPTH button.
NOTICE: When estimating
depth with a beacon in
nonmetallic pipe, depth shown will be to the center of the
beacon, not to the top of the pipe.
8. Continue to track the beacon and take depth readings. Mark
pipe location with paint.
Technique
2. Set antenna configuration and signal source, and select
beacon frequency.
3. Place the beacon into the pipe and move it down the pipe.
4. To locate the beacon, circle over its approximate location in
the pipe.
5. To identify the location of beacon, find the spot with the
strongest signal response.
beacon runs.
IMPORTANT: Receiver
when handle is perpendicular
to the beacon.
7. Press DEPTH button.
NOTICE: When estimating
depth with a beacon in
nonmetallic pipe, depth shown will be to the center of the
beacon, not to the top of the pipe.
8. Continue to track the beacon and take depth readings. Mark
pipe location with paint.
LOCATE LINE: PASSIVE LOCATION
Setup
To set up for passive location, turn on receiver and choose the
best frequency and antenna configuration for your job. See
Choose Frequency and Choose Antenna Configuration earlier
in this chapter.
Always check receiver battery level at startup.
NOTICE: Lines with no A/C current flowing through them are hard
to detect and dangerous because they still have voltage. To locate,
turn on an appliance to cause current flow, and use active and radio
search methods.
Technique
Survey the Site
Make a visual check of the site for signs of buried lines such as:
recent trenching
buried line markers
overhead lines that run down pole and underground
gas meters
valve sights
drains or manhole covers
Setup
To set up for passive location, turn on receiver and choose the
best frequency and antenna configuration for your job. See
Choose Frequency and Choose Antenna Configuration earlier
in this chapter.
Always check receiver battery level at startup.
NOTICE: Lines with no A/C current flowing through them are hard
to detect and dangerous because they still have voltage. To locate,
turn on an appliance to cause current flow, and use active and radio
search methods.
Technique
Survey the Site
Make a visual check of the site for signs of buried lines such as:
recent trenching
buried line markers
overhead lines that run down pole and underground
gas meters
valve sights
drains or manhole covers
Sweep the Site
Search the site by walking a grid
pattern while holding receiver
close to the ground.
IMPORTANT: Keep the receiver
vertical.
Focus the Signal
Move the receiver over the detected signal to find the strongest
signal response. If using a peak antenna mode, rotate the
receiver until the signal is strongest. Strongest signal indicates
line direction.
Trace the Line
Walk along the suspected path
while moving the receiver back
and forth across the area.
IMPORTANT: Keep receiver
handle parallel to the suspected
line path.
Sweep the Site
Search the site by walking a grid
pattern while holding receiver
close to the ground.
IMPORTANT: Keep the receiver
vertical.
Focus the Signal
Move the receiver over the detected signal to find the strongest
signal response. If using a peak antenna mode, rotate the
receiver until the signal is strongest. Strongest signal indicates
line direction.
Trace the Line
Walk along the suspected path
while moving the receiver back
and forth across the area.
IMPORTANT: Keep receiver
handle parallel to the suspected
line path.
Mark the Line
Sweep, focus, and trace all detected signals in the area. Mark
line paths with colored paint or flags. See the chart below for
standard color markings for line locations.
Utility Color Marking Symbol
electric red -E-
gas/oil yellow -G-
communications orange -TEL- or -TV-
water blue -W-
sewer green -S-
Mark the Line
Sweep, focus, and trace all detected signals in the area. Mark
line paths with colored paint or flags. See the chart below for
standard color markings for line locations.
Utility Color Marking Symbol
electric red -E-
gas/oil yellow -G-
communications orange -TEL- or -TV-
water blue -W-
sewer green -S-
Special Situations
bend in the line.
properly.
high or low. Lower or raise gain to
locate the line.
flash.
lift receiver high enough to return
display to normal operation.
the display when DEPTH
button is pressed.
The receiver is detecting a signal
above it and cannot estimate
depth. This message is usually
caused by interfering signals. Try
relocating target signal.
Special Situations
bend in the line.
properly.
high or low. Lower or raise gain to
locate the line.
flash.
lift receiver high enough to return
display to normal operation.
the display when DEPTH
button is pressed.
The receiver is detecting a signal
above it and cannot estimate
depth. This message is usually
caused by interfering signals. Try
relocating target signal.
950R/950T/970T - CARE AND ERROR CODES 61
950R/950T/970T - CARE AND ERROR CODES 61
CARE AND ERROR CODES
Under normal operating conditions, receiver needs only minor
maintenance. Following these care instructions can ensure
longer equipment life.
GENERAL CARE
Do not drop the equipment.
Do not expose the equipment to high heat (such as in the rear
window of a car).
Clean equipment with a damp cloth and mild soap. Never use
scouring powder.
Do not immerse in any liquid.
Inspect housing daily for cracks or other damage. If housing is
damaged, contact your Ditch Witch Subsite dealer for
replacement.
CARE AND ERROR CODES
Under normal operating conditions, receiver needs only minor
maintenance. Following these care instructions can ensure
longer equipment life.
GENERAL CARE
Do not drop the equipment.
Do not expose the equipment to high heat (such as in the rear
window of a car).
Clean equipment with a damp cloth and mild soap. Never use
scouring powder.
Do not immerse in any liquid.
Inspect housing daily for cracks or other damage. If housing is
damaged, contact your Ditch Witch Subsite dealer for
replacement.
62 950R/950T/970T - CARE AND ERROR CODES
ERROR CODES
62 950R/950T/970T - CARE AND ERROR CODES
ERROR CODES
ERROR CODES
If four dashes appear in the
display when pressing the DEPTH
button, the receiver is detecting a
signal above it and cannot
estimate depth. This message is
usually caused by interfering
signals. Try relocating target
signal.
If four dashes appear on the
display and signal strength and
gain bars flash, transmitter power
level is set too high and/or line is
too shallow for depth estimate. Select lowest usable transmitter
power level or lift receiver high enough to return display to normal
operation.
ERROR CODES
If four dashes appear in the
display when pressing the DEPTH
button, the receiver is detecting a
signal above it and cannot
estimate depth. This message is
usually caused by interfering
signals. Try relocating target
signal.
If four dashes appear on the
display and signal strength and
gain bars flash, transmitter power
level is set too high and/or line is
too shallow for depth estimate. Select lowest usable transmitter
power level or lift receiver high enough to return display to normal
operation.
950R/950T/970T - SPECIFICATIONS 63
950 RECEIVER
950 RECEIVER
SPECIFICATIONS
950 RECEIVER
Dimensions U.S. Metric
Length 12.8 in 32.5 cm
Width 5.9 in 14.5 cm
Height 27.8 in 70.5 cm
Operating weight 4.5 lb 2 kg
SPECIFICATIONS
950 RECEIVER
Length 12.8 in 32.5 cm
Width 5.9 in 14.5 cm
Height 27.8 in 70.5 cm
Operating weight 4.5 lb 2 kg
64 950R/950T/970T - SPECIFICATIONS
950 RECEIVER
950 RECEIVER
Operation U.S. Metric
Operating temperature range -4F to
122F
-20C to
50C
Antenna configurations single peak, twin peak,
null, left/right (line only)
Audio output speaker
Operating modes (some optional*)
Active line: 400 Hz*, 512 Hz, 560 Hz*, 815 Hz*, 1 kHz, 8
kHz, 29 kHz, 80 kHz, 200 kHz*, 33 kHz (EML)
Beacon (locate/depth only): 512 Hz*, 29 kHz*, 33 kHz*
Passive line: 50 Hz, 60 Hz, 50 P power*, 60 P power*,
31 kHz*
Radio: passive locate only, no depth available*
Locating ranges
Lines 15 ft 4.6 m
Beacons 10 ft 3 m
Maximum depth ranges**
Passive line 10% .5 - 10 ft .15 - 3 m
Active line 3% .2 - 5 ft .06 - 1.5 m
Active line 5% 5 - 10 ft 1.5 - 3 m
Active line 10% 10 ft and
deeper
3 m and
deeper
Beacon 5% .5 - 10 ft .15 - 3 m
LCD backlight LED (green)
External ports RS-232 serial
122F
-20C to
50C
Antenna configurations single peak, twin peak,
null, left/right (line only)
Audio output speaker
Operating modes (some optional*)
Active line: 400 Hz*, 512 Hz, 560 Hz*, 815 Hz*, 1 kHz, 8
kHz, 29 kHz, 80 kHz, 200 kHz*, 33 kHz (EML)
Beacon (locate/depth only): 512 Hz*, 29 kHz*, 33 kHz*
Passive line: 50 Hz, 60 Hz, 50 P power*, 60 P power*,
31 kHz*
Radio: passive locate only, no depth available*
Locating ranges
Lines 15 ft 4.6 m
Beacons 10 ft 3 m
Maximum depth ranges**
Passive line 10% .5 - 10 ft .15 - 3 m
Active line 3% .2 - 5 ft .06 - 1.5 m
Active line 5% 5 - 10 ft 1.5 - 3 m
Active line 10% 10 ft and
deeper
3 m and
deeper
Beacon 5% .5 - 10 ft .15 - 3 m
LCD backlight LED (green)
External ports RS-232 serial
950 RECEIVER
950 RECEIVER
**Locators are calibrated to these tolerances under ideal test field conditions.
Actual operating field conditions may have signal distortions or may contain
noise sources which result in depth estimate accuracy that is less than specified.
Batteries
Batteries 6 C-cell alkaline
Battery life (continuous use at 70F [21C]) approximately 50 hours
Battery saver unit shuts off after 5
minutes of inactivity
**Locators are calibrated to these tolerances under ideal test field conditions.
Actual operating field conditions may have signal distortions or may contain
noise sources which result in depth estimate accuracy that is less than specified.
Batteries
Batteries 6 C-cell alkaline
Battery life (continuous use at 70F [21C]) approximately 50 hours
Battery saver unit shuts off after 5
minutes of inactivity
950 TRANSMITTER
950 TRANSMITTER
950 TRANSMITTER
Length 14 in 355 mm
Width 4.2 in 107 mm
Height 11 in 280 mm
Operating weight 7.25 lb 3.3 kg
122F
-20C to
50C
Maximum power output 3 watts 3 watts
Operating modes: 512 Hz, 1 kHz, 8 kHz, 29 kHz, 80 kHz, and dual (8
kHz and 29 kHz)
Timer: unit runs continuously or shuts off after running for selected hour
interval (8-hour maximum)
Batteries
Batteries 8 D-cell alkaline
Battery life (continuous use at power level
2)
approximately 40 hours
950 TRANSMITTER
Length 14 in 355 mm
Width 4.2 in 107 mm
Height 11 in 280 mm
122F
-20C to
50C
Operating modes: 512 Hz, 1 kHz, 8 kHz, 29 kHz, 80 kHz, and dual (8
kHz and 29 kHz)
Batteries
2)
970 TRANSMITTER
970 TRANSMITTER
970 TRANSMITTER
Length 14 in 355 mm
Width 4.2 in 107 mm
Height 11 in 280 mm
122F
-20C to
50C
Operating modes (some optional*) : 512 Hz, 1 kHz, 8 kHz, 29 kHz,
80 kHz, 200 kHz*, and dual (8 kHz and 29 kHz)
Batteries
2)
970 TRANSMITTER
Length 14 in 355 mm
Width 4.2 in 107 mm
Height 11 in 280 mm
122F
-20C to
50C
Operating modes (some optional*) : 512 Hz, 1 kHz, 8 kHz, 29 kHz,
80 kHz, 200 kHz*, and dual (8 kHz and 29 kHz)
Batteries
2)
68 950R/950T/970T - SPECIFICATIONS 68 950R/950T/970T - SPECIFICATIONS
950R/950T/970T - WARRANTY 69 950R/950T/970T - WARRANTY 69
WARRANTY
Ditch Witch Subsite Electronics
Limited Product Warranty Policy
Warranty Periods
New Product
A twelve-month period starts on the date of delivery to the end user:
A six-month period starts on the date of delivery to the end user:
Beacons: 11B, 86B, 86BH, 86BHL, SBRP, 822B, 88B, 910B
A three-month period starts on the date of delivery to the end user:
Beacons: BI
Accessories: cables, clamps, canoes, cases, and adapters
Used Product (Cosmetics)
A three-month warranty starts on the date of delivery to the end user. (Non-
returnable) All used products have an RS added after the serial number.
Service and Repair
A one-month warranty on labor starts on the date the unit is repaired, and a three-
month warranty on parts starts on the date the unit is repaired for all products.
Extended Warranty
The extended warranty may be purchased at the time the equipment is sold or
within thirty days of ownership. The extension is for an additional twenty-four
months, for a total coverage of thirty-six months.
Trackers: 750 Tracker Remote Displays: 750 Display
Transmitters: 300ST, 950T,
970T
Receivers: 300SR, 910R, 950R,
EML
Fault Finders: AF1, FT12
Trench Depth Meter
WARRANTY
Ditch Witch Subsite Electronics
Limited Product Warranty Policy
Warranty Periods
New Product
A twelve-month period starts on the date of delivery to the end user:
A six-month period starts on the date of delivery to the end user:
Beacons: 11B, 86B, 86BH, 86BHL, SBRP, 822B, 88B, 910B
A three-month period starts on the date of delivery to the end user:
Beacons: BI
Accessories: cables, clamps, canoes, cases, and adapters
Used Product (Cosmetics)
A three-month warranty starts on the date of delivery to the end user. (Non-
returnable) All used products have an RS added after the serial number.
Service and Repair
A one-month warranty on labor starts on the date the unit is repaired, and a three-
month warranty on parts starts on the date the unit is repaired for all products.
Extended Warranty
The extended warranty may be purchased at the time the equipment is sold or
within thirty days of ownership. The extension is for an additional twenty-four
months, for a total coverage of thirty-six months.
Trackers: 750 Tracker Remote Displays: 750 Display
Transmitters: 300ST, 950T,
970T
Receivers: 300SR, 910R, 950R,
EML
Fault Finders: AF1, FT12
Trench Depth Meter
70 950R/950T/970T - WARRANTY 70 950R/950T/970T - WARRANTY
Details and Exclusions
The warranty includes only Ditch Witch Subsite products and accessories that
are manufactured and distributed by Ditch Witch Subsite Electronics. The
warranty compensates on defects in material or workmanship.
Defects will be determined through inspection by Ditch Witch Subsite
Electronics or authorized repair centers. Original purchaser must make the
defective item available for inspection within 30 days of the date the part fails.
The warranty is limited to replacement of the defective part. The replacement
part may be new or remanufactured. Repair and removal of defective part and
installation will be at no charge when product or item is delivered to Ditch Witch
Subsite Electronics or an authorized repair center. The product or item will be
returned at no charge for return freight.
The warranty periods do not represent the useful life of Ditch Witch Subsite
Electronics products and accessories.
If Ditch Witch Subsite products are purchased for commercial purposes, as
defined by the commerical code, no warranties extend beyond the specific
terms set forth in this limited warranty. All other provisions of this limited
warranty apply, including duties imposed.
Ditch Witch Subsite products have been tested to deliver acceptable
performance in most conditions.
This limited warranty applies to the original purchaser only. Some states or
jurisdictions do not allow exclusion or limitation of incidental or consequential
damages, so above limitation may not apply. This limited warranty gives
original purchaser specific rights that vary from state to state or jurisdiction to
jurisdiction.
The Ditch Witch Subsite Equipment Registration Form must be completed for
each serial numbered product and submitted to Ditch Witch Subsite
Electronics. The information on the form is used to establish the warranty
period start date.
Details and Exclusions
The warranty includes only Ditch Witch Subsite products and accessories that
are manufactured and distributed by Ditch Witch Subsite Electronics. The
warranty compensates on defects in material or workmanship.
Defects will be determined through inspection by Ditch Witch Subsite
Electronics or authorized repair centers. Original purchaser must make the
defective item available for inspection within 30 days of the date the part fails.
The warranty is limited to replacement of the defective part. The replacement
part may be new or remanufactured. Repair and removal of defective part and
installation will be at no charge when product or item is delivered to Ditch Witch
Subsite Electronics or an authorized repair center. The product or item will be
returned at no charge for return freight.
The warranty periods do not represent the useful life of Ditch Witch Subsite
Electronics products and accessories.
If Ditch Witch Subsite products are purchased for commercial purposes, as
defined by the commerical code, no warranties extend beyond the specific
terms set forth in this limited warranty. All other provisions of this limited
warranty apply, including duties imposed.
Ditch Witch Subsite products have been tested to deliver acceptable
performance in most conditions.
This limited warranty applies to the original purchaser only. Some states or
jurisdictions do not allow exclusion or limitation of incidental or consequential
damages, so above limitation may not apply. This limited warranty gives
original purchaser specific rights that vary from state to state or jurisdiction to
jurisdiction.
The Ditch Witch Subsite Equipment Registration Form must be completed for
each serial numbered product and submitted to Ditch Witch Subsite
Electronics. The information on the form is used to establish the warranty
period start date.
950R/950T/970T - WARRANTY 71 950R/950T/970T - WARRANTY 71
When the Ditch Witch Subsite Equipment Registration Form is not processed
and received by Ditch Witch Subsite Electronics, the Ditch Witch Subsite
shipping date is used to establish the warranty period start date.
Product inspection and estimates may require that the unit be disassembled
and tested.
Out-of-warranty inspection costs include labor accrued at the full labor rate plus
return freight.
Approved out-of-warranty repair costs include parts, labor accrued at full labor
rate, plus return freight.
Revision F, October 2003
When the Ditch Witch Subsite Equipment Registration Form is not processed
and received by Ditch Witch Subsite Electronics, the Ditch Witch Subsite
shipping date is used to establish the warranty period start date.
Product inspection and estimates may require that the unit be disassembled
and tested.
Out-of-warranty inspection costs include labor accrued at the full labor rate plus
return freight.
Approved out-of-warranty repair costs include parts, labor accrued at full labor
rate, plus return freight.
Revision F, October 2003
72 950R/950T/970T - WARRANTY 72 950R/950T/970T - WARRANTY

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