4.1 Troubleshooting

PROBLEM	DESCRIPTION	REACTION
ERROR TEMP	Temperature is below -40°F (-40°C) or above 167°F (75°C)	Return to normal temperature range and recalibrate. Contact MSA
ERROR EE	EEPROM Memory error	Contact MSA
ERROR PRG	Flash Memory error	Contact MSA
ERROR RAM	RAM Memory error	Contact MSA
ERROR UNK	Unknown error	Contact MSA
LOW BATTERY	Battery warning repeats every 15 seconds	Remove from service as soon as possible and recharge battery
BATTERY ALARM	Battery is completely discharged	Instrument is no longer sensing gas. Remove from service and recharge battery
ERROR CHARGE	Charge error	Instrument must be between 10 and 35°C to charge. Contact MSA if problem persists
SENSOR ERROR	Missing Sensor	Verify sensor is properly installed and recalibrate. Contact MSA if problem persists
Instrument does not turn ON	Low battery	Charge instrument
	Sensor warning	Sensor is near its end of life
&	Sensor alarm	Sensor has reached end of life and cannot be calibrated. Replace sensor and recalibrate