Table of Contents
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Troubleshooting
Temperature varies or
fluctuates.
Temperature Offset.
10-2
Improper loading
Poor sensor connections
Contaminated sensor
Poor ventilation base
Inlet and / or exhaust
vents are open
Inadequate tuning values.
Insufficient stabilization
time
Intermittent failure of
switch, controller, limit
switch, or wiring
Controller degradation
and/or sensor degradation
Test the unit empty.If results are satis-
factory, oven was improperly loaded.
Redistribute the load
Check connections. Clean and tighten
Clear the area around the base
Clear the area around the base
Close vents
Auto-tune the controller
Allow load ample time to reach equilib-
rium
Verify wiring connection
Offset or bias the controller and / or
replace the sensor
Thermo Scientific
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Table of Contents
Troubleshooting
