Service And Troubleshooting; Troubleshooting Guide - VWR INCU-Line INCU ILS4 Bedienungsanleitung

SERVICE AND TROUBLE-SHOOTING

9.1 Troubleshooting Guide

Problem
Oven will not power up or not
heat
Shaking platform
operate
Temperature too high
Chamber temperature
above set point and settles back
to set point
Temperature will not remain
stable or display shows "LO"
Indicated temperature
unstable
Temperature is too low
Unit will not
temperature that is below set
point.
Temperature display
reference thermometer do not
match.
Cannot adjust set
calibration or display persists call
service
Unit calibrated
temperature and not at another
Possible Solution
Check power cord, outlet and unit circuit breaker
will not Check time set to Hld or a time setting
Check that nothing is blocking shaker platform
Press Stop / Start button
Check set point and readjust if necessary
Check calibration
goes Normal operation in initial heat up of if door opened
for long period of time.
Check that set point is at least 5°C above ambient
(or 10°C above ambient when shaker is on) which is
minimum operating point.
is A slight variation of +/- 0.1°C is normal.
fluctuations may be ambient variations from drafts,
door opening and closing, a fan obstruction or failure
or electrical noise from RFI (motors, etc..)
If door has opened, unit may not have recovered yet.
Confirm temperature set point.
Safety thermostat set too low.
heat above Confirm set point. Check temperature of chamber
with a thermometer and recalibrate if needed.
and Be sure that unit has been allowed to stabilize for 1
hour.
chamber and not touching any surface.
certified reference thermometers should be used.
point or Turn unit off for 5 seconds to reset.
persists, call for service.
at one This can be a normal condition if temperatures or load
vary widely. For best accuracy, calibrate at set point.
Thermometer should be suspended in the
9
Section
Larger
Only
If problem