General Monitors 2602A User manual

26776 Simpatica Circle • Lake Forest, CA 92630 • [phone] • Fax [phone]
www.generalmonitors.com • email: [e-mail]
MODEL 2602A
Fault Code Description Corrective Action
F1 Open Analog Output Signal. Check connection on rear terminal pins
20d & 22d.
F2 Failed to Complete
Calibration. If this fault occurs, remove the gas and allow the sensor to see clean air for at
least 5 minutes. Press the Mode/Select
switch to clear the fault. Then attempt
another calibration. If the second
attempt fails, replace the sensor. If this
fault continues to occur after the sensor
has been replaced, consult the factory
or your GMI Representative.
F3 Software Checksum Error.
This fault occurs during
initial power-up of the unit.
If this fault occurs, remove and reapply
power to the unit. If the fault continues to
occur, replace the unit and consult the
factory or your GMI Representative.
F4 Sensor Heater Open
Circuited. Make sure the black and white sensor wires are connected properly (in the field
and at the rear of the unit). If this fault
continues to occur, replace the sensor.
F5 Sensor Heater Short
Circuited. Make sure the black and white sensor wires are connected properly (in the field
and at the rear of the unit). Make sure
the black and white sensor wires do not
come in contact with each other and that
there is no short across them. If this fault
continues to occur, replace the sensor.
F6 Low Supply Voltage. Make sure the supply voltage level at
the chassis is 24Vdc.

26776 Simpatica Circle • Lake Forest, CA 92630 • [phone] • Fax [phone]
www.generalmonitors.com • email: [e-mail]
MODEL 2602A
Fault Code Description Corrective Action
F7 EEPROM Verification
Failure. This fault will occur
if the microprocessor can
not store calibration or setup
information in the EEPROM.
If this fault occurs consult the factory or
your GMI Representative.
F8 Failed to Complete Setup.
This fault may occur during
or immediately after the
Setup Mode.
Press the Master Reset button to clear
this fault (the previous values for the
setup options will be valid).
F9 Calibration Check Period
Exceeded. Remove the gas and allow the sensor to see clean air for at least five minutes.
In each of the fault cases listed on this page, when the fault occurs the FUA output is activated. Pressing
the ACCEPT button on the Facilities Module (FM002A) will acknowledge the fault, de-activate the FUA
output and the fault LED will stop flashing and remain ON until the fault is corrected.