Fluke CNX a3000, Руководство по калибровке

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Wireless AC Clamp
Performance Tests
7
Backlight
To verify that the backlight functions:
1.
With the Product ON, push

.
2. The backlight will come on. If it does not, repair is necessary. See “Contact Fluke”.
Keypad Test
To verify that the keypad functions, turn ON the Product and push each button separately.
Each button push will turn on a display annunciator, and

will turn on the backlight. If
the buttons do nothing, repair is necessary. See “Contact Fluke”.
AC Current Test
Before you do the ac current test:
1. Make sure that you have the necessary equipment. See Table 2.
2. Make sure the Product battery is good and replace it if necessary. See “Battery
Replacement”.
3. Warm up the Calibrator as necessary. Refer to its specifications.
4. Let the temperature of the UUT become stable to room temperature.
To do the ac current test:
1. Connect the Calibrator A ac output and ground to the 50-Turn Coil. See Figure 3.
2. Apply the input level for each step shown in Table 3.
3. Compare the indication on the Product display with the UUT reading limits in
Table 3.
4. If the display indication falls outside of the range shown in Table 3, calibration
adjustment or repair of the Product is necessary. See “Calibration Adjustment”.
Table 3. Performance Tests
Test
Calibrator
Output
Resolution Specification
UUT Reading Limit
Low High
AC Amps
(with 50-
Turn Coil)
0.2 A,50 Hz
0.1
2.0 %
9.3 10.7
1 A,50 Hz 48.5 51.5
2 A,50 Hz 97.5 102.5
4 A,50 Hz 195.5 204.5
8 A,50 Hz 391.5 408.5
0.2 A,150 Hz
2.5 %
9.25 10.75
4 A,150 Hz 194.5 205.5
8 A,150 Hz 389.5 410.5
0.2 A,400 Hz 9.25 10.75
2 A,400 Hz 97 103
4 A,400 Hz 194.5 205.5
8 A,400 Hz 389.5 410.5
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