Testing The Display; Backlight Test - Fluke 150 Series Calibration Manual

Fuse, Fast, 315 mA, 1000 V, Min Interrupt Rating 10000 A
Battery, 1.5 V AA Alkaline, NEDA 15A, IEC LR6

Testing the Display

Press and hold the blue key, and simultaneously turn the UUT on. Compare the display with the
example in Figure 2. Check all segments for clarity and contrast.

Backlight Test

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Figure 1. Replacing the Fuse and Batteries
The display backlight is a toggle function controlled by the H key. Each press of
Hcauses the backlight to change states, on to off or off to on. To test the backlight, press
the H key twice to verify that the toggle function is working. Turn the backlight off.
F315 mA 1000 V
Min interrupt rating
10000 A
Figure 2. Display Test
Insulation Testers
Basic Maintenance
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Fluke PN 2279339
Fluke PN 376756
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