AMETEK XFR 2800 Watt Series - Manual (Page 83)

Calibrating for Programming Accuracy
TM-F2OP-C1XN-01 5-5
Calibrating for Programming Accuracy
The factory calibrates the offset and range of the voltage and current
programming circuits to within 1% for the default 0-10 Vdc programming
signals. You may need to recalibrate when you use 0-5 Vdc programming
or when you switch back to 0-10 Vdc programming after previously
calibrating for 0-5 Vdc programming.
See “Calibration Setup” on page 5–2 for instructions to remove the cover
and any option card. Follow all procedure steps in the sequence given.
Voltage Programming Circuit Calibration
To perform voltage programming circuit calibration:
1. Ensure that the power supply is turned OFF. Disconnect any load.
2. Connect the program source between J2 connector terminals 6
(output voltage program input) and 5 voltage program signal return).
3. Connect the DVM across the power supply output.
4. Turn the power supply ON.
5. Apply 1% of program voltage.
6. Adjust the voltage program offset potentiometer (R472) until the
DVM reads 1% of the model-rated output voltage.
7. Apply 100% of program voltage.
8. Adjust the voltage program range potentiometer (R462) until the
DVM reads the model-rated output voltage.
Repeat this procedure until output levels are adjusted to power supply
specifications (see Appendix A, “Specifications”) or to the accuracy that
your application requires.