AMETEK 2001RP - Manual (Page 59)

User and Programming Manual - Rev R
2001RP 49
4. Use the left control knob to adjust the peak current reading shown on the right hand LCD
until it reads as close as possible to the reference reading derived from the external
DMM (DMM 1). Remember the peak current value is equal to 1.414 times the value
shown on the external DMM.
1. Connect the test equipment to the power source as shown in Figure 6-2.
Full Scale Power Measurement Calibration
2. Program the output voltage to a value that produces about 13 A rms.
3. Use the SELECT key to select the Power Measurement calibration mode. This mode is
indicated by the PWR LED.
4. Calculate the power by multiplying the external reference current reading (DMM 1) with
the external reference voltage reading (DMM 2).
5. Use the left control knob to adjust the power measurement reading shown on the right
hand LCD until it reads as close as possible to the calculated power reading.
6.4 Non-Routine Calibration
The following calibrations are not required on a routine basis:
High Current Measurement Range (Section 6.4.1). After the low current measurement
range, 0 to 4 A, is calibrated, the high range should be within it’s specification range. If it is
not, this adjustment must be performed.
Current Limit Adjustment (Section 6.4.2). This calibration is only required if the output
current, while operating in the constant current mode, is not equal to or more than the
programmed value.
Open Sense Adjustment (Section 6.4.3). This adjustment must be made if the output voltage
can’t be calibrated while operating in the constant current mode. If the output faults, with no-
load, while operating in the Constant Voltage mode, this adjustment must also be made.
All of the non-routine calibration adjustments must be made with the top cover removed.
Refer to Figure 6-3 for the location of the internal adjustments.
6.4.1 High Current Measurement Range Adjustment
Note: If the Current Limit and High Current Measurement Range Adjustments
are both adjusted, the High Current Measurement Range must be
adjusted first.
1. Connect the test equipment as shown in Figure 6-2. Use the 11.3 ohm load.
2. Program the output voltage to 150V (135V for -LZ option, 115 V for –AV option) on the
low voltage range and 60 Hz (400 Hz for –AV option).
3. Use the SELECT key to select the Current Measurement display. Note that this is not the
Current Measurement calibration mode. Only the I RMS LED should be illuminated.