English - Compact P20 P40 and P60 Manual Pcwi
English - Compact P20 P40 and P60 Manual Pcwi
English - Compact P20 P40 and P60 Manual Pcwi
Compact
CE Marked PCWI Compact Detectors comply with the requirements of EMC Directives 89/336/EEC EMC and its amending directives.
CERTIFICATE OF CALIBRATION
Model : Manufacturer: Serial No:. Tolerance:. Conformance: Compact Detector PCWI Technology Pty Ltd .. 5%
Office:
13 Alhambra Avenue CARDIFF NSW 2285 Newcastle - Australia PO Box 900 HUNTER REGION MC NSW 2310 sales@pcwi.com.au www.pcwi.com.au
(02) 4954 3900
Postal:
This detector has been tested at a series of voltages from 0 to 60,000 Volts against a Certified Meter and High Voltage Probe, Report Number 209852 / Pulse Crest Meter Report Numbers 01-01851-A, 01-01851-B, 01-01851-C, 01-04258-A, 54019, 54819 and 723 0135/03, using AS 2886-1986 as a guide. The Detector complies with PCWI Standards of Manufacture. PCWIs Laboratory complies with the requirements of AS ISO/IEC 17025-1999 general requirements for the competence of testing and calibration laboratories. All calibrations are traceable to National and International Standards.
Note:
It is recommended that the unit be periodically checked prior to use with a Certified PCWI Crestmeter.
SIGNED:
CONTENTS
1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 Safety Precautions...................................................................2 Operation...............................................................................3 Specifications .........................................................................4 Control Panel Layout................................................................5 Voltage Recommendations ....................................................6-7 Troubleshooting ...................................................................8-9 Optional Accessories .........................................................10-11 Warranty ..............................................................................12 Service .............................................................inside back page
Quality System
INTRODUCTION
Thank you for choosing the PCWI Compact for pre-installation and post installation corrosion detection. PCWI have designed this instrument with care, to provide ongoing corrosion detection efficiency under a wide variety of coating application conditions and to ascertain Porosity for the many protective coatings currently in use. Under reasonable care in operation, the unit will provide many years of trouble free detection. To support the unit, PCWI maintain a comprehensive range of Electrodes (probes) - extending the versatility of the Compact from large to small and from accessible to inaccessible surfaces. PCWI, in a continuing desire to achieve the maximum in corrosion dete c ti on c omp e t e n c e , w e l c o m e s user enquiries and recommendations.
Yours sincerely
WARNING
Unlike continuous direct current units where the electrical field drops to zero when contact is made and where the probe is earthed out via the body, Pulsed Detectors will continue to shock at full voltage. Caution should be taken to avoid contact with the live electrode. Please consult these operating instructions before use.
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CAUTION
The Detector output can be up to 65,000 volts. Should the operator accidentally make contact with the test electrode, they may experience a mild shock or zap, and in order to avoid this possibility, the wearing of rubber gloves is recommended. Furthermore, the operator should enjoy good health and not suffer from a cardiac condition. If the operator has a pacemaker, then they should not use this equipment. This equipment should only be used for the purpose for which it was designed, ie: checking the porosity, or electrical breakdown, of dielectric or insulating materials. It is also recommended that testing should be carried out well clear of personnel not involved in the testing procedure, or in such a position whereby the surprise of receiving an electric shock could cause a related accident, if for example, tests being carried out close to moving or rotating machinery, or in such an unstable position that the operator could fall and injure themselves. It is recommended that the operator should have an assistant, to ensure that unauthorised personnel are kept well clear of the testing area, and generally assist when necessary with the testing procedure. It is also recommended that the Detector not be operated within close proximity of sensitive electronic apparatus, such as computer equipment.
DANGER
Do not use the test equipment in any combustible or flammable atmosphere, as a test voltage can cause an arc or spark to be generated and an explosion could result. Always consult the plant or safety officer before carrying out a test procedure. When testing tank internals, be certain the tank does not contain solvents remaining from the painting procedure.
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2.0 OPERATION
Connect the probe and earth leads to the unit. Connect the earth clamp to the metallic substrate of the item to be tested substrate should be earthed to ground. Select the probe best suited for the test and attach to the probe handle. Fit the Fuse (if not already fitted). Turn the unit on. Test the batteries to ensure that they are charged. Adjust the voltage control to the required test voltage. Place the probe near the metal substrate. A spark should occur (if not re-check all leads and connections). The unit should now be ready for use. Re-check the output adjust if necessary. Place the probe on the coated surface and move at approximately one metre per four seconds. A fault is indicated by: A spark at the probe this can usually be seen and heard. A light flashes on the front panel of the unit. An audible sound buzzer is mounted inside the unit. Note: A definite flaw should be made in the coating and located with the designated test voltage, therefore proving that the unit is locating the type of fault you wish to find. Probes must be kept in full contact with the surface, gaps in or between the probe and the coating may result in flaws going undetected. Wire brushes, rubber and coil spring probes should all be kept in good condition. Probes other than fine wire brushes may require higher voltages.
Earthing
Where the item to be tested is not earthed to ground, a ground spike must be attached. The unit should always be switched off before removing and repositioning the earth lead. After the earth is repositioned, the probe should always be flashed on the substrate to prove a good contact has been made.
3.0 SPECIFICATION
P20
Unit weight: Packed weight: Display: Voltage: Resolution: Alarm range: Short circuit test current: Power supply: Dimensions: Alarm: Probe handle: Battery condition:
P40
P60
2.2kg 2.2kg 2.2kg 6.0kg 6.0kg 6.0kg LED LED LED to 20kv 5 to 40kv 10 to 60kv 100v 100v 100v 1 to 20kV 5 to 40kV 10 to 60kV 1.5mA max 500a max Gel Cell 3Ah Clip On 260 x 160 x 70mm Audible Rubber lead LED Indicator
STORAGE:
The Detector should be stored in a dry place. Leads should not be wound tightly. Battery should be fully charged.
4 0 . 0 7 t c a p Com Pulse
1 2 3 4 5 6 7 8 9 10 11 12
3 4
kV
7 On
Off
LED display On/Battery condition indicator Light Visual alarm indicates when fault is found Voltage Up Voltage Down Off On Audible alarm when fault is found Earphone (connected on opposite side) Fuse (4A slow blow) 5 x 20mm Earth connection point Alarm sensitivity wet or dry conditions
(located in battery compartment of Pulse 20 and Pulse 40 only)
FUSE T 4A 250V
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Table 1. Determination of the coating film factor (F) from coating type and volume solids content. Volume Solids %(V/V) Factor (F) 15 to 39 40 to 59 60 to 79
Table 2. Determination of the minimum test voltage (V) from dry film thickness (T) and coating material factor (F). Factor (F) 4 3 2 150 250 400
Nominal dry film thickness in microns
Generic Type of Coating Volume Solids %(V/V) Chorinated rubber, Vinyl Low Build Epoxy, some Tar Epoxy High Build Epoxy, some Tar Epoxy Polyester/Vinyl esters, Solventless Epoxy, Fusion-bonded Epoxy
80 plus
1 600 800
Formula 1
V = minimum test voltage applied in volts T = dry film thickness of cured coating in microns F = a whole number factor which rates a coatings generic type and residual solvent content (Table 1)
The above minimum test voltages have been derived from Australian Standard AS3894.1-2002; the whole of this Standard should be used. The above voltages relate to the following: the detector should have a direct earth connection to the substrate and a fine wire brush electrode must be connected to the probe.
International Standards NACE RP0274-98 derived table Table 3 below is derived from NACE standards and should be used as a guide only.
Table 3. kV Values from NACE RP0274-98 mm 0.51 0.79 1.6 2.4 3.2 4.0 4.8 13 16 19 kiloVolts 6 7 10 12 14 16 17 28 31 34
The above table should be taken as a GUIDE only. It is recommended that the whole of this standard be used.
6.0 TROUBLESHOOTING
Alarm Sensitivity Control (for use with P20 and P40 only)
Located on the base of the P20 & P40 compacts, underneath the battery pack, is an alarm sensitivity control switch. This switch enables the operator to set the alarm sensitivity by selecting the most appropriate setting when working in conditions where the coating surface is wet. The control pot can be adjusted to: Dry For normal function in dry conditions Wet For alarm function in wet conditions Note: The P60 is used only for dry coating surfaces. It does not incorporate a control switch.
Symptom
Flat battery No Display
Cause
Solution
Recharge battery Fit fuse
Slightly conductive, damp or salty surface Display voltage drops during test
Wash and clean the surface Set Alarm Sensitivity Control to Wet
(Control is located in battery compartment of P20 and P40 only. Not on P60.)
Coating may not be fully cured Probe surface area too large
Damp or wet surface Alarm sounds continuously during test Coating may not be fully cured Probe moved too fast Probe surface area too great
Allow coating to cure. Move probe 1 metre every 4 seconds Use smaller probe
No alarm on fault
50mm (2in) to 600mm (24in) wide flat brushes. 25mm (1in) to 500mm (20in) Spiral wound and Disc Internal circular pipeline brushes. 25mm (1in) to 500mm (20in) External circular pipeline brushes.
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60mm, 125mm, 200mm, 450mm connectors for flat or external pipeline brushes.
Fan Brushes
Spare slip-out power packs. 7m Earth lead with clamp. 10m trailing Earth lead (1m plastic encased). 50mm (2in) to 1765mm (72in) Coils complete with ball bearing ends. Coil Joiners.
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8.0 WARRANTY
Subject to the warranty conditions below this PCWI Instrument is warranted by PCWI International Pty Ltd to be free from defects arising from faulty design, material, or workmanship for a period of 12 months from the date of original purchase by the end user or a maximum period of 15 months from dispatch to authorised distributor. Probes and leads are warranted for 3 months. They are consumable items, and subject to wear and deterioration during use. The life of these parts can be much extended by keeping them in a dry clean condition, and storing them in suitable protective containers. During use, avoid scrubbing the probe along the surface of the work-piece.
WARRANTY CONDITIONS
During the warranty period listed above PCWI or its authorized service representative will make good any defects covered by this warranty. PCWI or its authorised service representative will decide if there are any defects in design, material or workmanship. This warranty only applies provided the instrument has been used in accordance with the manufacturers operating handbook recommendations. This warranty does not cover damage, malfunction or failure resulting from misuse, neglect, abuse or used for a purpose for which it was not designed and no repairs, alterations or modifications have been attempted by other than PCWI on an authorized service. This warranty applies only to the original user buyer. This warranty does not cover any service that is needed after an accident, alterations, misuse, fire or floods. This warranty is the only one given by PCWI and no one has the authority to change, or add to, the obligations and liabilities listed in it. This warranty does not cover batteries, probe handle brushes (electrodes) and leads which are subject to wear. During the warranty period PCWI or its authorized service representative will bear the transportation cost of the return of instrument/s repaired under warranty back to the users premises within the country of purchase.
PCWI OFFERS
Strong technical support
In-house development and manufacturing enables us to provide strong technical support and a quick response to enquiries and orders.
Office:
13 Alhambra Avenue CARDIFF NSW 2285 Newcastle, Australia PO Box 900 HUNTER REGION MC NSW 2310
Postal:
au - PCWI Compact Pulse Porosity Detectors.cdr (Aug 05) 2003 PCWI Pty Ltd