Precision Control Systems 915 - Manual (Page 21)

Page 18 of 21
480 VAC units: 3,750 VDC
240 VAC units: 1,875 VDC
120 VAC units: 0.917 VDC
Adjust the EXT 200 span potentiometer if necessary.
7. Verify that the panel voltmeter reads the voltage as set in Step 5 above. If necessary,
carefully remove the front cover of the meter and adjust the span potentiometer for a +/-
1 reading.
Temperature Controller Option
Refer to the temperature controller manual for calibration instructions.
Line Voltage Re-Configuration
The AC line voltage for the Model 915 Power Control System may be re-configured. A wire
with wire number 1070 is connected to pins 2, 3, or 4. Move this wire to the pin corresponding
to the desired line voltage.
Pin 2 120 VAC
Pin 3 240 VAC
Pin 4 480 VAC