Changing The Fuse - TESTBOY TB-3000 Bedienungsanleitung

Operation
Remove the screw on the rear of the instrument, open the battery
compartment and remove the used batteries. Insert new batteries
(2 × 1.5 V AAA Micro). Replace battery compartment cover and screw tight.
Only use the specified batteries!
Batteries should not be disposed of in household rubbish! Please
observe any relevant laws pertaining to their disposal in the country
of use.

Changing the fuse

When changing the fuse, previously disconnect the test leads from the
device and release all screws on the rear. Carefully remove the rear of the
housing and replace the fuses with the same type (fuse F 250 mA or
10 A / 690 V or F10 A / 690 V). Close the device.
Only use the specified fuses!
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Testboy TB-3000