California Instruments 2001RP, Руководство пользователя и программирования

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User and Programming Manual - Rev N
3. Use the SELECT key to select the Peak Current Measurement calibration mode. This
mode is indicated by the I PK LED.
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.
Full Scale Power Measurement Calibration
1. Connect the test equipment to the power source as shown in Figure 6-2.
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.
2001RP April 2007 49