User Manual
Version 1.0 22
X.
Fault Diagnosis
Fault
Possible Causes
Solution
No Power
External power supply outlet has no
power.
Check power outlet
The power plug is not correctly inserted
into the socket
Re-insert the power plug into the
s
ocket check switched ‘ON’
Failed fuse
Check the fuse.
Replace the fuse.
PV Display
Temperature sensor (Pt100) is damaged
Check Pt100.
(0
℃
, 100Ω, 0.3Ω/
℃
)
Replace if required
Temperature sensor line issues
encountered.
Re-connect the lines again.
Temperature
Not Increasing
The SET value is too low
Set temperature SV
≥ ambient
+10
℃
Temperature controller has no output
Replace the temperature
controller
The heater is damaged
(short circuit, or open circuit)
Replace the heater
Timing function or the setting is not
correct.
ST=0 or ST= (heating time
+constant temperature time)
Temperature Issues
* Out of Control
* Offset or
Overshoot
* Error Display
Tested Temperature
vs. Real
Temperature
The output of the temperature controller is
unreliable
Replace 3041 or BTA
Pt sensor not connecting well.
Reconnect PT sensor
Large Variance
Between Test
Temperature and
Real Temperature.
Relevant parameters are not correctly set.
Re-set all relevant parameters,
such as Ar, P etc.
Insufficient vacuum
Check vacuum pump
The parameters within the vacuum oven
are not accurate or correct
Re-arrange Pb, Pk parameters.
