Teledyne 3010TA - Split architecture trace oxygen analyzer - Manual (Page 91)

Oxygen Analyzer Part II: Analysis Unit
Part II: 5-7
1. Disconnect the Unit from its power source.
2. Place a small screwdriver in the notch in the fuse holder cap,
push in, and rotate 1/4 turn. The cap will pop out a few
millimeters. Pull out the fuse holder cap and fuse, as shown in
Figure 5-3.
Figure 5-3: Removing Fuse Cap and Fuse from Holder
2. Replace fuse by reversing process in step 1.
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 .
4. Observe the error-code readings on the VFD Display screen, and
check Table 5-1, below, to interpret the codes.
Table 5-1: Self Test Failure Codes
Power
0 OK
1 5 V Failure
2 15 V Failure
3 Both Failed
Analog
0 OK
1 DAC A (0–1 V Concentration)
2 DAC B (0–1 V Range ID)
3 Both Failed
Preamp
0 OK
1 Zero too high
2 Amplifier output doesn't match test input
3 Both Failed