Thermo Scientific 42iQD, Инструкция по эксплуатации

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Troubleshooting
Troubleshooting Guide
Thermo Scientific 42iQD Instruction Manual 6-5
Problem Possible Cause Action
Alarm – 5V/24V Step Board Cable connection Check the cable connections to that
Step POL board.
Alarm – Analog I/O Defective PCB Replace Analog board.
Alarm – Digital I/O Defective PCB Replace Digital board.
Alarm – NO Bkg Check
Offset Incorrect high alarm
limit Verify the high limit is correct via
Settings>Status and
Alarms>Concentrations screen.
Instrument
background
calibration failed Recalibrate the instrument.
Alarm – NO Span Check
Offset Incorrect high alarm
limit Verify the high limit is correct via
Settings>Status and
Alarms>Concentrations screen.
Instrument span
calibration failed Recalibrate the instrument.
Alarm – Ambient
Thermistor Defective
Flow/Pressure board Replace defective DMC board as
needed.
Alarm – Chamber Pressure Defective
Flow/Pressure board Replace defective DMC board as
needed.
Alarm – Bench
Temperature Short Cable connection Check the cable connection from the
heater to the DMC board.
Broken wire Verify the wires are properly
connected to both sides of the heater.
Defective heater Replace heater as needed.
Defective DMC board Replace defective DMC board as
needed.
Alarm – Bench
Temperature Open Cable connection Check the cable connection from the
heater to the DMC board.
Broken wire Verify the wires are properly
connected to both sides of the heater.
Defective heater Replace heater as needed.
Defective DMC board Replace defective DMC board as
needed.
Alarm – Cooler Current too
Low Defective cooler Replace cooler as needed.
Defective DMC board Replace DMC board as needed.
Alarm – Cooler Current too
High Defective cooler Replace cooler as needed.
Defective DMC board Replace DMC board as needed.
Alarm – Cooler Voltage too
Low Defective cooler Replace cooler as needed.