Elcon SA10A - Check Current Measurement Inputs IC, IM

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Rev 1 2018-03-21 www.elcon.se
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7.2.2 CHECK CURRENT MEASUREMENT INPUTS IC, IM.
Connect a stable DC-current source minimum 10A in series with a calibrated ampere meter.
Note! To not blow fuse in instrument use max 10 Volts out on current source.
Check of Ic (Coil current)
To verify positive measurement connect.
To verify negative measurement connect.
DC Supply +  Uc.
CLOSE, OPEN  +Amp (Ref.).
COM (Ref.) DC Supply -
DC Supply -  Uc.
CLOSE, OPEN  +Amp (Ref.).
COM (Ref.) DC Supply +
Note! To check Ic current measurement, you need to activate the trig output.
Follow the calibration guide to Step 3 to verify the current.
See section 7.3.2 Calibration wizard for current measurement inputs Ic, Im.
Verify in BTS11 that the input is within the specification below.
Current measure: 0-32 A DC. Accuracy < 1% or  0.1 A DC
0 - 32 A AC. Accuracy < 2% or  0.2 A AC
Analog resolution: 12 bits. Resolution about 0.023A DC / Bit.
If the values are near the limit of accuracy, calibration is necessary. See.
7.3.2 Calibration wizard for current measurement inputs Ic, Im.
Check of Im (Motor Current)
To verify positive measurement connect.
To verify negative measurement connect.
DC Supply +  Um.
MOTOR  +Amp (Ref.).
COM (Ref.) DC Supply -
DC Supply -  Um.
MOTOR  +Amp (Ref.).
COM (Ref.) DC Supply +
Verify in BTS11 that the input is within the specification below.
Current measure: Range 0-32 A DC. Accuracy < 1% or  0.1 A DC
Range 0 - 32 A AC. Accuracy < 2% or  0.2 A AC
Analog resolution: 12 bits. Resolution about 0.048A DC / Bit.
If the values are near the limit of accuracy, calibration is necessary. See.
7.3.2 Calibration wizard for current measurement inputs Ic, Im.