1. Power – A green light which indicates connection to a source of DC power.
2. Data In – A yellow light which indicates the host computer is transmitting data.
3. Data Out – A blue light which indicates the Oxygen Sensor is transmitting data.
4. Temperature Stable – A green lights which indicates the status of the gas sampling circuit.
OFF: The sample heater is switched off.
FLASH: The sample temperature is moving toward it’s respective operating setpoint.
ON: The sample temperature is steady and reports valid measurements.
5. Sensor Fault – A red light which indicates the status of the sample heater circuitry.
OFF: The heater circuitry is operating normally.
FLASH: A fault has been detected within the heater circuitry.