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Here is how to test to see if it is working correctly:
1. Configure and calibrate the indicator to your load device. Ensure the weighing function is
working properly.
2. Connect the AA and BB output wires to an external 24 VDC power supply and 250 Ω resistor
as shown in the above test diagram.
3. When the indicator is displaying zero, the output should be 4 mA. Since V=IR, you should
measure 1 VDC across R
L
.
4. When the indicator is displaying the full-scale load, the output should be 20 mA. Again, since
V=IR, you should measure 5 VDC across R
L
.
Active 0-5 V Analog Output
You can get the output through pins 2 and 3 of the D-SUB9 connector. Pin 2 is the 0-5 V signal and
pin 3 is Ground.
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