Teledyne 3000ZA-3X - Trace oxygen analyzer - Manual (Page 60)

Maintenance 3000ZA-3X
Teledyne Analytical Instruments 48
2. To change between American and European fuses, remove
the single retaining screw then flip the Fuse Block over 180
degrees. Replace the 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 Items are tested:
Table 5-1: Self-Test Result Display
“5V - Test : GOOD” ( +5VDC power supply )
“15V - Test : GOOD” (+/-15 VDC power supply )
“DAC A - Test : GOOD” (% of range analog output )
“DAC B - Test : GOOD” ( Range ID analog output )
“Pre L - Test : GOOD” ( Tests offset of low range amplifier )
“Pre M - Test : GOOD” ( Tests offset of medium range amplifier)
“Pre H - Test : GOOD” ( Tests offset of high range amplifier )