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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.
Calibrator
Test
Output
0.2 A,50 Hz
1 A,50 Hz
2 A,50 Hz
4 A,50 Hz
8 A,50 Hz
AC Amps
0.2 A,150 Hz
(with 50-
4 A,150 Hz
Turn Coil)
8 A,150 Hz
0.2 A,400 Hz
2 A,400 Hz
4 A,400 Hz
8 A,400 Hz
Table 3. Performance Tests
Resolution
Specification
2.0 %
0.1
2.5 %
UUT Reading Limit
Low
High
9.3
10.7
48.5
51.5
97.5
102.5
195.5
204.5
391.5
408.5
9.25
10.75
194.5
205.5
389.5
410.5
9.25
10.75
97
103
194.5
205.5
389.5
410.5
Wireless AC Clamp
Performance Tests
7
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