Specifications

SG Series Programming Calibration

M550129-03 Rev G 7-15

7. Verify the unit is set to 100% ± 0.8% of full-scale output current. If necessary,

adjust R33 (on the isolated interface adapter) for 100% of full-scale current on

the shunt.

8. Set the programming source for 0.5V ± 1mV.

9. Verify that the unit is set to 10% ± 0.8% of full-scale output current. If

necessary, adjust R47 (on the isolated interface adapter) for 10% of full-scale

current on the shunt.

10. Repeat the steps above as required to obtain the required accuracy.

7.8.2 Adjustment for Voltage Mode

STEP DESCRIPTION

1. Disable AC power to the unit. Remove the current shunt from the output and

verify that there is no load attached.

2. Remove the precision meter leads from the current shunt and apply them

across the output terminals.

3. Set the SGI series unit to operate in remote voltage programming mode using

an external 0-5 VDC voltage source as shown in Figure 7-5.

20 VP RTN

COM 6

15 VP 10V

VP 5V 9

0-5 VDC

VOLTAGE

SOURCE

0-10 VDC

VOLTAGE

SOURCE

Figure 7-5. Remote Voltage Programming Using 0-5 VDC or 0-10 VDC Voltage Source

4. Apply AC power and press "Output On" switch (Figure 7-4).

5. Set the programming source to 5.0V ±1mV.