M300EU, Warning Messages - Indicated Failures cont

M300EU			TROUBLESHOOTING & REPAIR
(Addendum to M300EU Manual - P/N 04145)
	Table 11-1:	Warning Messages – Indicated Failures (cont.)

WARNING	FAULT CONDITION		POSSIBLE CAUSES
MESSAGE	FAULT CONDITION		POSSIBLE CAUSES
MESSAGE
	Sample flow rate is		Failed sample pump
	Sample flow rate is		Blocked sample inlet/gas line
SAMPLE FLOW	<1400 cm3/min		Blocked sample inlet/gas line
WARN		or	Dirty particulate filter
WARN		or	Leak downstream of critical flow orifice
		3	Leak downstream of critical flow orifice
	> 2200 cm /min.		Failed flow sensor/circuitry
			Failed flow sensor/circuitry
			If sample pressure is < 10 in-hg:
	Sample Pressure is		o Blocked particulate filter
	Sample Pressure is		o Blocked sample inlet/gas line
	<10 in-Hg or > 35 in-Hg		o Blocked sample inlet/gas line
SAMPLE PRES	<10 in-Hg or > 35 in-Hg		o Failed pressure sensor/circuitry
SAMPLE PRES	Normally 29.92 in-Hg at sea level		o Failed pressure sensor/circuitry
WARN	decreasing at 1 in-Hg per 1000 ft of		If sample pressure is > 35 in-hg:
WARN	decreasing at 1 in-Hg per 1000 ft of		o Pressurized sample gas. Install vent
	altitude (with no flow – pump		o Pressurized sample gas. Install vent
	disconnected).		o Blocked vent line on pressurized sample/zero/span gas
			supply
			o Bad pressure sensor/circuitry
			Ambient temperature outside of specified range
	Sample temperature is < 10oC or >		Failed bench heater
SAMPLE TEMP	Sample temperature is < 10oC or >		Failed bench temperature sensor
WARN		100oC.	Relay controlling the bench heater
			Failed relay board
			I2C buss
			GFC wheel stopped
	Occurs when CO Ref is <1250		Failed sync/demod board
	Occurs when CO Ref is <1250		If status LED’s on the sync/demod board ARE flashing the
	mVDC or >4950 mVDC.		If status LED’s on the sync/demod board ARE flashing the
SOURCE	mVDC or >4950 mVDC.		cause is most likely a failed:
SOURCE			cause is most likely a failed:
WARNING	Either of these conditions will result		IR source
	Either of these conditions will result		Relay board
	in an invalid M/R ratio.		Relay board
	in an invalid M/R ratio.		I2C buss
			I2C buss
			IR photo-detector
			This message occurs at power on. If you have not cycled the
	The computer has rebooted.		power on your instrument:
SYSTEM RESET	The computer has rebooted.		o Failed +5 VDC power,
SYSTEM RESET			o Failed +5 VDC power,
			o Fatal error caused software to restart
			o Loose connector/wiring
			Blocked cooling vents below GFC Assembly. Make sure that
			adequate clear space beneath the analyzer.
			Analyzer’s top cover removed
WHEEL TEMP	The filter wheel temperature is		Wheel heater
WARNING	controlled at 68 ± 2 °C		Wheel temperature sensor
			Relay controlling the wheel heater
			Entire relay board
			I2C buss

05514 Rev A1

Teledyne Model 300EU manual M300EU, Warning Messages - Indicated Failures cont, Rev A1

Models: Model 300EU

Warning Messages – Indicated Failures (cont.)

Sample flow rate is