Figure 5-3: Installing Fuses. Teledyne 3000TA, 3000TA-EU

Maintenance 3000TA-

2. To change between American and European fuses, remove the single retaining screw, flip Fuse Block over 180 degrees, and replace screw.

3. Replace fuse as shown in Figure 5-3.

4. Reassemble Housing as shown in Figure 5-2.

American Fuses European Fuses

Figure 5-3: Installing Fuses

5.4 System Self Diagnostic Test

1. Press the System button to enter the system mode.

2. Use the ◄►arrow keys to move to More, and press Enter.

3. Use the ◄►arrow keys to move to Self-Test, and press

Enter . The following failure codes apply:

Table 5-1: Self Test Failure Codes

Power

0 OK

1 5 V Failure

2 15 V Failure

Analog

0 OK

1

2

DAC A (0–1 V Concentration)

DAC B (0–1 V Range ID)

Trace Oxygen Analyzer Maintenance

Preamp

0 OK

1 Zero too high

2 Amplifier output doesn't match test input

Failed

5.5 Major Internal Components

The Micro-Fuel cell is accessed by unlatching and swinging open the front panel, as described earlier. Other internal components are accessed by removing the rear panel and sliding out the entire chassis.

See Figure 5-4, below. The gas piping is illustrated in Figure 2-4, and the major electronic components locations are shown in Figure 2-5, in chapter 2.

WARNING: See warnings on the title page of this manual.

The 3000TA contains the following major components:

 Analysis Section





 Micro Fuel Cell (L-2 or other)

 Stainless steel cell block

Sample system

Power Supply





Microprocessor

Displays

 5 digit LED meter



 2 line, 20 character, alphanumeric, VFD display

RS-232 Communications Port.

See the drawings in the Drawings section in back of this manual for details.