Teledyne Tablet Accessory T803 Manual De Usuario
Teledyne API T803 CO2/O2 Analyzer Operation Manual
Troubleshooting and Service
189
11.2.2.2. RELAY PCA STATUS LED S
D6 (Yellow) O
2
Sensor Heater
D5 (Yellow) – CO
2
Sensor Heater
(only with CO
2
option)
D1 (RED)
Watchdog Indicator
Figure 11-4:
Relay PCA Status LEDs Used for Troubleshooting
Table 11-4: Relay PCA Status LED Failure Indications
LED Color
Function
Status When LED Lit
(Energized State)
Status When LED Unlit
(Default State)
D1
Red Watchdog
Circuit
Cycles ON/OFF every 3 Seconds
under direct control of the analyzer’s CPU.
D2-D4
SPARE
D5
Yellow CO
2
Sensor Cell heater
Heating
Not Heating
D6
Yellow O
2
Sensor heater
Heating
Not Heating
D7
2
Green
D8
2
Green
D9
2
Green
D10
2
Green
D11 - 16
SPARE
2
Not Used
07276B DCN6418