Troubleshooting
System Troubleshooting Guides
4-6
Mercury System Manual
Thermo Fisher Scientific
Alarm
Message
Possible Cause
Action
OFF
Check that temperature is set to 220 °C.
Check AC voltage to probe.
Check communication between 80
i
/81
i
/82
i
.
Check cabling in back of instruments.
Measure ohms of thermocouple and heater.
Check fuse on 82
i
power distribution board.
Alarm – Span
Autocal
Check
coefficients.
Alarm – Span
Check
Check
coefficients.
Alarm - Umbilical
Temp
Low or at ambient
temp
Check voltages and continuity.
Check breakers in 82
i
.
High temp
Check set point.
Component power is
OFF
Check that component power is ON.
Temperature is not
set to 120 °C
Check that temperature is set to 120 °C.
No AC voltage to
probe
Check that AC voltage is applied to probe.
Faulty
communication
between 80i/81i/82i
Check communication between 80
i
/81
i
/82
i
.
Cabling problem to
instruments
Check cabling in back of instruments.
Measure ohms of heater.
Alarm - Vacuum
Pressure
Low pressure - leak
Perform a leak test.
Ensure dilution air pressure is ON: ~35 psig for
83
i
GC, ~ 45 psig for 83
i
.
High pressure -
blockage
Check system for blockage.
Alarm - Venturi
Pressure
Low pressure - leak
Check eductor.
Alarm - Zero
Autocal
Check
coefficients.
Alarm - Zero
Check
Check
coefficients.
The following board related alarms only occur during power up or reboot.
Alarm - Interface
Status
Internal cables not
Check that all internal cables are connected
Содержание Mercury Freedom 80i
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