High Voltage Battery Board Replacement - Fluke Victoreen 451P Operator's Manual

4.5 High Voltage Battery Board Replacement

This assembly contains the lithium cells for chamber bias.
1. Remove the 9-volt batteries to be sure that the instrument will remain off during the disassembly
process.
2. Remove the four screws from the case top.
3. Carefully remove the case bottom from the thick gasket that seals the top and bottom.
4. Remove the two screws, lock washers and metal spacers, holding the battery board in place.
5. To replace the five 21 V lithium cells, remove the old lithium cells by unsoldering, and solder into
place the new lithium cells. Battery boards and cells are listed in the Replaceable Parts Information
section.
6. Secure the battery board to the survey meter assembly with the two screws, lock washers and
aluminum spacers removed in step 4.
7. Secure the case top to the case bottom, with the gasket in between, using the four screws removed
in step 2.
8. Replace the 9-volt batteries, being sure to observe proper polarity.
4.6 Replaceable Parts Information
Fluke Biomedical, Radiation Management Services maintains a complete inventory of all normal
replaceable parts. To place an order, or to obtain information concerning replaceable parts, contact the
Fluke Biomedical, Radiation Management Services Repair Coordinator at 800.850.4606, 440.498.2564,
or Fax: 440.542.3682.
Replaceable parts list
Part Number Description:
1020023002 Keypad Overlay, Yellow
1020023001 Keypad Overlay, Red
1020024003 Handle, Gray
1020024002 Handle, Yellow
450P-1-20 High Voltage Battery Board Assembly
181061 Lithium Battery Assembly, 7-CR 1220 Lithium Cells
1020026000 Handle, Foam Grip
WARNING
Surface below High Voltage Board is conductive!
High Voltage Battery Board Replacement
Maintenance
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4-3