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Teledyne 5000B - Near Infrared Photometer User Manual

Page 62

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3 Maintenance

Model 5000B Photometric Analyzer

4-2: Part I

Teledyne Analytical Instruments

Figure 4-1: Removing Fuse Block Cap and Fuse from Housing

2. Replace fuse by reversing process in step 1.

4.2

System Self Diagnostic Test

NOTE: Always run self diagnostic with the intended zero fluid.

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 4-1: Self Test Failure Codes

Power

0

OK

1

5 V Failure

2

15 V Failures

3

Both Failed

Analog

0

OK

1

DAC A (0–1 V Concentration)

2

DAC B (0–1 V Range ID)

3

Both Failed