AMETEK DLM 600W Series - Manual (Page 79)

DLM 600W Series
M362161-01 Rev J 5-5
5.5.1 Internal Reference Adjustment
Use the following procedure to adjust the internal –5.0 VDC reference:
1. Connect a voltmeter from J14-4, positive lead, to J14-6, negative lead.
2. Adjust potentiometer R379 for a reading on the voltmeter of –5.000 VDC.
5.5.2 Output Voltage Offset Adjustment
Calibration of the output voltage is done using remote control through the REMOTE
ANALOG INTERFACE. Use the following procedure to adjust the output voltage offset:
1. Connect a voltmeter across the output terminals of the power supply.
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-10 and Pin-3 of the REMOTE ANALOG
INTERFACE connector to program the output current and OVP to full scale.
4. Connect a voltage source, set to 0.050 VDC, from Pin-9 to Pin-12 of the
REMOTE ANALOG INTERFACE connector.
5. Adjust potentiometer R377 on the Main PWA for a reading on the external
voltmeter of 1% of full scale output voltage.
6. Iterate the output voltage offset and range adjustment until both are accurate.
5.5.3 Output Voltage Range Adjustment
Calibration of the output voltage is done using remote control through the REMOTE
ANALOG INTERFACE. Use the following procedure to adjust the output voltage range:
1. Connect a voltmeter across the output terminals of the power supply.
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-10 and Pin-3 of the REMOTE ANALOG
INTERFACE connector to program the output current and OVP to full scale.
4. Connect a voltage source, set to 5.00 VDC, from Pin-9 to Pin-12 of the REMOTE
ANALOG INTERFACE connector.
5. Adjust potentiometer R378 on the Main PWA for a reading on the external
voltmeter of 100% of full scale output voltage.
6. Iterate the output voltage offset and range adjustment until both are accurate.