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Teledyne 3300TB - Low cost trace oxygen analyzer User Manual

Page 31

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5-1

Trace Oxygen Analyzer

Maintenance 5

Teledyne Analytical Instruments

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

Remove Power to 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

3. Insert a small flat-blade screwdriver into the slot in the receptacle

wall nearest the fuse and gently pry open the fuse receptacle. The

FUSE