9
D1021
- SIL 2 Powered Isolating Driver with Fault Detection Smart-Hart compatible
G.M. International ISM0022-6
Calibration instruction and Troubleshooting
In case a calibration check or readjustment is necessary the following equipment is required:
Adjustable Power Supply Range 0-35 V Resolution 0.1 V,
Accuracy 1% Output Capability 200 mA
Current Meter range 20 mA, Resolution 1 µA Accuracy 0.01%
or Voltage Meter Range 10 V, Resolution 1 mV Accuracy 0.01%
Current Calibrator range 20 mA, Resolution 1 µA Accuracy 0.01 %
Agilent
E3611A
Agilent
34410A
Yokogawa
7651
Equipment Required
Instrument
•
Set power supply (PS) at 24.0 V at terminals 3 (+) and 4 (-), the calibrator (CAL) in the function “mA” 20 mA range at terminals 1 (+) and 2 (-),
the multimeter (DMM) for the reading in DC supply 20 mA range at terminals 14 (+) and 15 (-).
•
Verify that green led on the front panel is ON.
•
Connect the unit as shown below:
If the power ON Led is off, check supply voltage, polarity and wiring.
•
Set calibrator (CAL) at 4.000 mA and verify that the output current, read by multimeter (DMM), is correspondent with a maximum deviation
presented in the section “Technical Data”.
•
Set calibrator (CAL) at 20.000 mA and verify that the output current, read by multimeter (DMM), is correspondent with a maximum deviation
presented in the section “Technical Data”.
If the maximum deviation is exceeded, repeat the board calibration and proceed in the following way:
•
Set the calibrator (CAL) at 20.000 mA and regulate the current, read by multimeter (DMM), by turning the span trimmer of the unit
(see “Configuration” section) until reading 20.000 mA ± 5 µA value.
•
To execute a linearity test: set the calibrator (CAL) at 4.000, 8.000, 12.000, 16.000, 20.000 mA and verify current output is correspondent with
a maximum deviation presented in the section “Technical Data”.
PS
DMM
CAL
Identification
PS
Supply
=
_
+
CAL
DMM
mA
mA
3 +
In 1
Out 1
MODEL D1021S
=
=
=
14
15
3 +
4 -
1
2
=
=
5
6
7 +
8 -