Teledyne 3300ZB Maintenance

Trace Oxygen Analyzer Maintenance

Teledyne Analytical Instruments 21

Maintenance

Aside from normal cleaning and checking for leaks at the gas

connections, the Model 3300ZB should not require any maintenance

beyond replacement of zirconium oxide sensors, and perhaps a blown

fuse. Routine maintenance includes occasional recalibration, as

described in Chapter 4 Operation.

If 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 holder will slide out. The fuse in use is visible in the clip.