TAS-331DG Data Sheet 4921220036 UK
TAS-331DG Data Sheet 4921220036 UK
TAS-331DG Data Sheet 4921220036 UK
Type TAS-331DG
DEIF A/S
4921220036G
Application
TAS-331DG is a micro-controller based AC-transducer with 1 analogue output for measurement of power or reactive
power on an AC-network. TAS-331DG can be delivered pre-configured to the desired measuring value and range or it
can be delivered un-configured for customer configuration through the PC-interface. The PC-configuration makes free
adjustment of the full input range and output range possible without any mechanical settings or adjustments inside the
transducer. The transducer holds no mechanical moving parts like potentiometers and therefore the calibration stability is
excellent. TAS-331DG will check the wiring for faults when starting up and indicate possible faults on a LED.
TAS-331DG can be configured as a normal linear transducer or with up to three slopes giving the possibility for a higher
resolution in one or two ranges of the measurement. See figure below for an example of three slopes. Upper and lower
output limitations can also be configured.
Example of triple slope (for further examples see data sheets for TAS-311DG/TAS-321DG)
Upper limit
End value
Value at point 2
Value at point 1
Start value
Lower limit
Connection diagram
With voltages above 480V phase-phase.
The secondary side of the current transformer must be connected to earth. Alternatively a double
insulated current transformer can be used.
Technical specifications
Accuracy:
0.75
0.75/1.5/3.0/6.0A
Overload, currents:
Load:
Overload, voltages:
Load:
Min. 480k
Frequency range:
30456580Hz
Note: For fundamental frequency (1. harmonic) outside 20Hz80Hz
the input is fixed to 0
Indication:
1 analog output
Standard range:
Output (0...100%):
Output (10...100%):
Output (20...100%):
Output (-100...0...100%):
Output load:
Output cable:
out/Rload:
Ambient temperature:
-1055oC (nominal)
o
-2570 C (operating)
o
-4070 C (storage)
Temperature coefficient:
Response time:
Ripple:
Twice the class index (peak to peak measurement) according to IEC 688
Galvanic separation:
Supply voltage:
57.7-63.5-100-110-127-200-220-230-240-380-400-415-440-450-480-660-690V AC 20%
24-48-110-220V DC -25/+30%
Consumption:
Climate:
EMC:
According to EN 61000-6-1/2/3/4
Protection:
Connections:
Materials:
Type
TAS-331DG
TAS-331DG
Measuring range:
02MW
01Mvar (2Mvar) 1)
Coupling 2):
1W3
1var3
VT ratio:
10kV/100V
10kV/100V
Measuring voltage:
100V
100V
CT ratio:
100/5A
100/5A
Transfer curve:
Single slope
Dual slope
4mA
4mA
Value at point 1:
20mA
4mA
4mA
21.5mA
Auxiliary voltage:
110V DC
110V DC
1)
As the transducer for measurement of reactive power is configured at 50% var in proportion to the active power, the
function dual slope is activated. This method can be used to ensure that the dynamic range of the current input is not
exceeded on the var transducer.
2)
Check of the chosen measuring range is within the configuration range of the transducer.
Primary power
0.375A = <
= <6A
1.73 x measuring voltage x Vt ratio x Ct ratio
At 1W/1var coupling the factor 1.73 is left out of the above calculation.
If I (current) is beyond 0.375A6A another Ct with a larger or smaller ratio is chosen.
PC-configuration kit containing connection cable and software for customer configuration must be ordered separately.
Dimensions
All dimensions in mm
Mounting instructions
TAS-331DG is designed for panel mounting, being mounted on a 35 mm DIN rail, or by means of two 4 mm screws.
The design of the transducer makes mounting of it close to similar equipment possible, however make sure there is min.
50 mm between the top and bottom of the transducer and other equipment. The DIN rail must always be placed
horizontally when several transducers are mounted on the same rail.
Due to our continuous development we reserve the right
to supply equipment which may vary from the described.
DEIF A/S, Frisenborgvej 33
DK-7800 Skive, Denmark
Tel.: +45 9614 9614, Fax: +45 9614 9615
E-mail: deif@deif.com, URL: www.deif.com