Ametek Sorensen Asterion DC Series, Operation Manual

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Calibration Asterion DC Series
3-40
voltage programming input. To verify operation in Constant-Voltage mode, follow
these steps:
1. Ensure that there is no load connected to the output.
2. Ensure that the remote sense is connected to the output terminals.
3. Connect a digital voltmeter (DVM) across the rear panel positive and negative
output terminals, observing the correct polarity. Make sure the DVM is in the
DC voltage mode and the range is adequate to handle the full-scale voltage
of the power supply.
4. Apply power to the AC mains input and turn on the power supply.
5. If the Power ON Settings (PONS) had previously been configured to be OFF,
when the supply reaches the Dashboard Screen, enable the output by
pr
essing the “Output On/Off”.
6. Use the Dashboard Screen to program the Voltage, Current and Power.
7. Program the Current to 10% of rated output by entering the value in the
“Setting” section on the Dashboard Screen. Program the current above zero
to enable supplying output current while in the constant-voltage mode.
8.
On the Dashboard screen, rotate the rotary knob to select the “Voltage” text
box in the “Setting” section. Press the rotary knob to highlight the voltage
value. Rotate the rotary knob clockwise and observe both the voltage display
in the “Measure” section on the Dashboard screen and output of the DVM
begin to accelerate up. The output voltage should increase from 0 V to the
maximum rated voltage of the supply. The voltage display in the “Measure”
section on the Dashboard screen and DVM readings should track within the
accuracies of the meter and the Dashboard.
9. Verify the front panel Constant Voltage Mode LED is on.
10. Program the Voltage and Current back to zero.
11. Turn the power supply off.
If Constant-Voltage mode operation did not function as indicated above, verify the
setup and perform the check again. If the function continues to fail, contact the
factory for assistance.
3.2.2 Constant-Current Mode Operation
In Constant-Current mode operation, the output current is regulated at the selected
value while the output voltage varies with the load requirements. The current could
be programmed either through the front panel or by the remote analog current