Teledyne BDS-3000 - Oxygen analyzer - Manual (Page 82)

Maintenance BDS 3000
Teledyne Analytical Instruments 68
The following failure codes apply:
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
5.5 Major Internal Components
T he S ensor i s accessed by unl at chi ng and swi nging open the f r ont
panel , as descr ibed earl i er . Ot her i nternal component s are accessed by
r em oving t he rear panel and sli ding out t he enti r e chassis. See F igure 5- 4,
bel ow. The gas pi pi ng is il lust r at ed in F igure 2- 3, and the maj or el ectr oni c
com ponents l ocati ons are shown in Fi gur e 2- 7, in Chapter 2.
WARNING: SEE WARNINGS ON THE TITLE PAGE OF THIS
MANUAL.
The BDS 3000 contains the following major components:
• Analysis Section
Sensor with stainless steel wetted parts
Sample system