AMETEK DLM 600W Series - Manual (Page 80)

DLM 600W Series
M362161-01 K 5-6
5.5.4 Output Current Offset Adjustment
Calibration of the output current is done using remote control through the REMOTE
ANALOG INTERFACE. Use the following procedure to adjust the output current offset:
1. Connect a DC shunt across the output terminals of the unit.
2. Connect a jumper from Pin-1 to Pin-6 of the REMOTE ANALOG INTERFACE
connector to enable remote control.
3. Connect jumpers from Pin-15 to Pin-9 and Pin-3 of the REMOTE ANALOG
INTERFACE connector to program the output voltage and OVP to full scale.
4. Connect a voltage source, set to 0.050 VDC, from Pin-10 to Pin-12 of the
REMOTE ANALOG INTERFACE connector.
5. Adjust potentiometer R375 on the Main PWA for a current through the external
shunt of 1% of full scale output current.
6. Iterate the output current and offset adjustments until both are accurate.
5.5.5 Output Current Range Adjustment
Calibration of the output current is done using remote control through the REMOTE
ANALOG INTERFACE. Use the following procedure to adjust the output current range:
1. Connect a DC shunt across the output terminals of the unit.
2. Connect a jumper from Pin-1 to Pin-6 of the REMOTE ANALOG INTERFACE
connector to enable remote control.
3. Connect jumpers from Pin-15 to Pin-9 and Pin-3 of the REMOTE ANALOG
INTERFACE connector to program the output voltage and OVP to full scale.
4. Connect a voltage source, set to 5.00 VDC, from Pin-10 to Pin-12 of the
REMOTE ANALOG INTERFACE connector.
5. Adjust potentiometer R376 on the Main PWA for a current through the external
shunt of 100% of full scale output current.
6. Iterate the output current and offset adjustments until both are accurate.