ThermoFisher Scientific 146iQ, Инструкция по эксплуатации

Страница: 179 / 302

Troubleshooting
Troubleshooting Guide
Thermo Scientific 146iQ Instruction Manual 6-3
Problem Possible Cause Action
duty cycle temperature
at 100%
Flow, pressure or vacuum
are too low, or: pump
produces no flow Diaphragm or valve
plates are worn or dirt
in the head Rebuild or replace pump.
Connections or lines are
blocked Let the pump run for a few minutes
pumping air.
An external valve is
closed or a filter
blocked Install the pump at the highest
point in the system.
There is a leak at a
connector, in a line or in
the pump head Find and repair leak.
Liquid (condensate) has
collected in the pump
head Clean and dry. Pump may need
replacement.
Pump cable not seated Verify the pump cable is properly
seated into the Step POL board.
The cross-section of
pneumatic lines, or
connected components
are too small or they
are restricted The pump is not designed for this
condition.
Alarm – board
communication failure Internal cables not
connected properly Verify cables to DMC PCB are
seated properly. Replace DMC PCB
if necessary.
Alarm – power supply Internal cables not
connected properly Verify cables to DMC PCB are
seated properly. Replace DMC PCB
if necessary.
Cell frequency (Photometer) Light adjustment Readjust Lamp setting
Defective detector Interchange detectors at
Photometer DMC PCB connectors
to determine if detector is
defective.
Ozone frequency Lamp supply
Low or Zero frequency Light adjustment Re-adjust lamp setting
Dirty cell Clean cell.
Excessive noise Foreign material in cell Clean cell.
Defective lamp Replace lamp as needed.
Defective detector Interchange detectors at
photometer DMC PCB connectors
to determine if detector is
defective.