Badger Meter Hydrometer - Manual (Page 11)

Section I
Paragraph 1-55 – 1-55
1-55. BACK LIGHTING MAINTENANCE. Bulb
replacement is accomplished as follows:
a. Non-Explosionproof (See figures 10 and 11)
1. Disconnect power and electrical wires to shell
assembly.
2. Remove four (4) screws (10-32 x 3/8) holding shell
assembly to housing.
3. Slide out shell assembly.
4. Remove and replace defective fluorescent bulb (G.E.
P/N F20T12/D) and/or starter (G.E. P/N FS-2) as required.
5. Slide shell on housing and align.
6. Reinstall screws removed in second step.
7. Reconnect electrical wires disconnected in first step.
b. Explosionproof (See figures 10 and 12)
1. Disconnect power, conduit, and electrical wires to
shell assembly.
2. Remove four (4) screws (10-32 x 3/8) holding shell
assembly to flowmeter housing.
3. Slide out shell assembly.
4. Remove upper cap (end opposite conduit connection)
by turning cap counter-clockwise.
5. Remove and replace defective fluorescent bulb (G.E.
P/N F15T12/CW) and/or starter (G.E. P/N FS-2) as required.
Maintenance instructions for this operation are printed on the
cap inside face.
6. Reinstall the cap removed in the fourth step.
7. Slide shell assembly on flowmeter housing and align.
8. Reinstall screws removed in second step.
9. Reconnect electrical wires and conduit disconnected in
first step.
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