Disassembly; Re-Assembly - Fluke 1550C Calibration Manual

This instrument contains a lead-acid battery. Do not mix with the solid
waste stream. Spent batteries should be disposed of by a qualified recycler
or hazardous materials handler. Contact your authorized Fluke Service
Center for disposal and recycling information.
Storing rechargeable lead-acid batteries in a low-charged state could lead
to reduced life and/or damage. Fully charge the battery before storing for
extended periods and check, the charge at regular intervals.
The product is powered by 12 V lead acid battery, Fluke P/N 2803592. The battery can
be recharged using the AC power cord.
Fully charging the battery typically takes 12 hours. Avoid charging in extremes of
temperature. Recharge the battery if the product has been stored for extended periods.
If the battery needs to be replaced, use the following procedure to replace the battery.

Disassembly

To prevent possible damage to the product or to equipment
under test, disassembly must be performed using proper ESD
handling techniques. Place the product on an anti-static mat
and use a grounded wrist strap during the following procedure.
1. Disconnect the test leads from any live source and power off the product.
2. Remove the mains supply cable leads from the instrument.
3. Turn the product over and place it on a level surface with feet up.
4. Remove the 4 screws from the case. This frees the top assembly from the base. The
battery is attached to the base.
5. Lift the base from the top assembly and set it on its side next to the top assembly.
6. Disconnect the red and black leads for the battery.
7. Set the base on its feet and remove the 4 screws from the battery bracket.
8. Remove the bracket.
9. The battery (PN 2803592) can now be removed.

Re-assembly

1. Place the new battery assembly in position and then reinstall the battery bracket.
2. Reverse steps 2 through 9 of the disassembly procedure to re-assemble. When
reconnecting the red and black battery leads, the red wire must be connected to the +
terminal of the battery. Connect the black wire to the – terminal.
 
Note
Pb
Caution
Insulation Tester
Battery Replacement Procedure
17