Teledyne 3300TB, Operating Instructions Manual, Page: 40 / 51

Trace Oxygen Analyzer Maintenance
Teledyne Analytical Instruments 27
Maintenance
Aside from normal cleaning and checking for leaks at the gas
connections, the Model 3300TB should not require any maintenance
beyond replacement of expended Micro-Fuel Cells, and perhaps a blown
fuse. Routine maintenance includes occasional recalibration, as
described in chapter 4,
Operation .
5.1 Replacing the Fuse
CAUTION: Remove power to the unit before replacing the
fuse.
When a fuse blows, check first to determine the cause, then replace
the fuse using the following procedure:
1. Disconnect the AC power and place the power switch located
on the rear panel in the O position. Remove the power cord
from the receptacle.
2. The fuse receptacle is located in the power cord receptacle
assembly in the upper left-hand corner of the rear panel. See
Figure 5-1.
Figure 5-1: AC Fuse Replacement
FUSE