Table 7-2: Relay Board Status Leds - Teledyne T200H User Manual

Troubleshooting & Service
LED COLOR
LED ROW 1
D1 Red
D2 Yellow
D3 Yellow
D4 Yellow
1
D7 Green
1
D8 Green
D9 Green
D10 Green
LED ROW 2
D6 Yellow
D11- 16 Green
1
Only active for instruments with Z/S valve options installed
222

Table 7-2: Relay Board Status LEDs

FUNCTION
2
Watchdog Circuit; I C bus
operation.
Relay 0 - reaction cell heater
Relay 1 - NO converter heater
2
Relay 2 - manifold heater
Valve 0 - zero/span valve status
Valve 1 - sample/cal valve status
Valve 2 - auto-zero valve status
Valve 3 - NO/NO valve status
x
Relay 4 – (O sensor heater
2
T200H/M)
Spare
To enter the signal I/O test mode to manually control I/O functions such as valves and
heaters, press the following touchscreen button sequence while observing the relay
board LEDs:
Teledyne API - Model T200H/T200M Operation Manual
FAULT
INDICATED FAILURE(S)
STATUS
Failed or halted CPU; faulty motherboard,
Continuously keyboard, relay board; wiring between
ON or OFF motherboard, keyboard or relay board; +5
V power supply
Continuously
Heater broken, thermistor broken
ON or OFF
Continuously
Heater broken, thermocouple broken
ON or OFF
Continuously
Heater broken, thermistor broken
ON or OFF
Continuously Valve broken or stuck, valve driver chip
ON or OFF broken
Continuously Valve broken or stuck, valve driver chip
ON or OFF broken
Continuously Valve broken or stuck, valve driver chip
ON or OFF broken
Continuously Valve broken or stuck, valve driver chip
ON or OFF broken
N/A N/A
N/A N/A
07270D DCN7141