Error In The Temperature Measurement/Regulating Circuit - Decontamination Mode At 90°C - Thermo Scientific BB 150 User Manual

4.7.7 ERROR IN THE TEMPERATURE MEASUREMENT/REGULATING CIRCUIT -
DECONTAMINATION MODE AT 90°C
Error (Unit display)
code Test
equipment /
Test at the
unit
Heater on LED
continuously lit.
Watt meter
Sample
protection
LED active.
Determine any
mains
interrupt.
Name
Prepared
Index Name
50078923_04_CN
File
Inspections and tests
Perform the functional
test forrelay K1 on the
main board.(Switch the
unit off and on.)
Check the heater
actuators (FL3)
Check the heater
actuators (FL3).
Date
JF 05.07.13
Date
Possible corrective
actions
Replace the main
board.
Replace the main
board.
Repeat the
decontamination
routine.
Designation
Service Manual BB 150
Document No.
50 079 823
Page
29/ 29