Ametek CHANDLER ENGINEERING Twin UCA 4262, Руководство по эксплуатации

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SECTION 4 – TROUBLESHOOTING GUIDE 4-1
Section 4 - Troubleshooting Guide
The following table lists symptoms of several common problems, the possible cause of the
problem, and the possible solution to the problem.
Symptom Possible Cause Possible Solution
MAIN POWER circuit-
breaker switch trips off.
Short circuit in system
wiring.
Disconnect power to instrument
and check for short circuits with
an ohm-meter.
Faulty MAIN POWER
switch.
Replace switch.
Temperature controller
does not come on.
Loose connection in
controller wiring
Disconnect power to instrument
and check power connection on
back of controller
Faulty controller Replace controller
High temperature drop-
out
Allow cell to cool below 375
Ε
F.
Instrument not receiving
power.
Instrument not plugged in. Connect instrument to the correct
power source.
Thrown breaker on circuit
supplying power to the
instrument.
Check breakers on electrical
supply circuit.
Pump will not operate. Insufficient air pressure to
pump.
Check air supply and make certain
instrument is supplied with air
between 75 and 125 psig. Check
air lines for blockage. Adjust
PUMP PRESSURE ADJUST
regulator to a higher pressure.
Solenoid valve controlling
flow of air to pump is not
functioning.
If no solenoid click is heard when
the PUMP switch is turned to the
ON position, a faulty solenoid
valve is likely.
Pump operates, but will
not build pressure.
CYLINDER WATER
valve is not open or water
is not being supplied to
the instrument.
Open CYLINDER WATER valve
and check flow of water to the
instrument.