Test The Batteries; Replace The Batteries And/Or Fuse - Fluke 150X Series Calibration Manual

150X Series
Calibration Manual

Test the Batteries

To prevent possible electrical shock or personal injury, replace the battery when
the low battery indicator (B) shows to prevent incorrect measurements. A weak
battery can cause false readings.
The Tester continuously monitors battery voltage. If the low battery icon (B) appears on the
display, there is minimal battery life left. Before any performance test, check the batteries and
replace if necessary.
This procedure tests the batteries under load:
1. With no probes inserted, turn the rotary switch to the bposition.
2. Press the blue key to initiate the fully loaded battery test. The voltage function display
clears and the measured battery voltage shows on the primary display for two seconds, the
voltage display then returns. The displayed voltage should be within 5.5 V to 6.2 V. If
voltage is <5.2 V, replace the batteries and repeat the test.

Replace the Batteries and/or Fuse

Replace the fuse and batteries as shown in
batteries.
To prevent possible electrical shock, personal injury, or damage to the Tester:
Use only specified replacement fuses.

When you replace the fuse or batteries, turn the rotary switch to OFF and remove

the test leads from the terminals.
1. Remove the yellow holster from the Tester, see
2. To remove the battery door, use a standard screwdriver to turn the battery door lock until
the unlock symbol aligns with the arrow.
3. Lift the bottom of the battery door away from the Tester to access the fuse and battery
compartment.
4. Remove and replace the batteries and/or fuse as shown in
5. Replace the battery door and turn the battery door lock until the lock symbol (L) aligns with
the arrow.
6. Position the bottom of the Tester in the bottom of the holster and press the top of the
Tester firmly into the holster.
4
XWWarning
Figure 1. Follow the steps below to replace the
XWWarning
Remove the Holster.
Figure 1.