AUTOMATION COMPONENTS, INC Version : 5.0
2305 Pleasant View Road Page 3 of 3 I0000789
Middleton, Wisconsin 53562 (888) 967-5224
Troubleshooting
Problem
Solution
No reading
- Confirm that you have +13.5 to 30VDC in series with the current sensor output terminals and
the analog input of the control panel.
- Check the polarity of the circuit.
- Verify that the terminals are screwed down, wires are firmly in place.
- Disconnect the input to the control panel and then insert a current meter (mA range) in series
with the current sensor output to verify that the circuit is working properly.
Erratic readings
- Verify that the wires are terminated properly.
- Check that the +13.5 to 30VDC input is clean. In areas of high RF interference, shielded cable
may be necessary to stabilize signal.
Inaccurate readings
- If you suspect that the current sensor is not reading within the accuracy specifications, please
contact the factory for assistance.
Current Sensor is operating at
a low-level current or failing
to operate within the accuracy
specifications.
-Visually check the mating parts of the core to ensure there is no debris between the split
contacts.
See Figure 2
.
-Remove all debris or dust manually and close the current sensor.
-Continue to retest the sensor in your application.
Current Conversion Formulas
To convert the current sensor output signal to a current reading.
4-20mA output to Current reading
(4mA = 0 Amps and 20mA = 250 Amps for
A/CTA2-250
)
Example: 12mA current sensor output signal
Total Span = 250 Amps
Multiplier = 20mA-4mA/Total Span = 0.064
(12mA-4mA)/0.064=
125 Amps
WEEE Directive
At the end of their useful life the packaging and product should be disposed of via a suitable recycling center. Do not dispose of
with household waste. Do not burn.
