Non-Routine Calibration; Figure 5-2: Front Panel Assembly Adjustment Location (Top View) - Ametek CSW5550 User Manual

User Manual

5.4 Non-Routine Calibration

All internal adjustments are set at the factory at the time or original shipment. As such, non-
routine calibration is generally not required unless one or more amplifier assemblies have been
replaced in the field. In this case, perform the following sections in the order shown.
The non-routine calibration involves removing the top cover from the power source. Remove the
line power from the power source before removing the top cover. All of the adjustments are on
the Front Panel Assembly as shown in Figure 6-2.
5.4.1 AC Function AC Zero Adjustment (ALC can be either ON or OFF)
1. With the external DVM monitor the voltage at the power source output indicated in Table
6-3.
2. Press the PHASE key to indicate the corresponding phase to be adjusted.
3. Program the High Voltage Range, the AC function, 0.0 volts and 400 Hz.
4. Press the OUTPUT key to turn on the CSW. Perform the adjustment indicated in Table
3-1 for the indicated output phase. Make the adjustment for the lowest AC output signal.
Refer to Figure 6-2 for the location of the adjustments. The external DVM should be on
the 10 or 20 VAC range
1
Use the 10 or 20 VAC or VDC range to prevent an offset error in the External DVM caused by output noise.
116
1
.
Output Phase
A
B
C
Table 6-3 AC Zero Adjustment

Figure 5-2: Front Panel Assembly Adjustment Location (Top View)

Controller Brd Adjustment
R229
R230
R231
California Instruments
Adjustment Location
Left
Middle
Right
CSW Series