Name
Date
Designation
Prepared
JF 05.07.13
Service Manual BB 150
Index
Name
Date
Document No.
Page
File
50078923_04_CN
50 079 823
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4.12 PERFORMING ADJUSTMENTS
In general, a comparative measurement should be made. Refer to the chapter,
"Comparative Measurements and Adjustments" in the operating instructions.
An adjustment routine can be initiated for each adjustable regulation circuit by using
the -cal- key.
4.12.1 TEMPERATURE ADJUSTMENT INCUBATION MODE
Comparative
measurement:
Incubation temperature
Perform the comparative measurement at the user's normal operating temperature,
e.g., 37.0°C. Make sure the unit has adequate time to reach equilibrium before taking a
reading:
-
For cold units:
No sooner than 5 hours after the temperature has reached
equilibrium or the end of a complete -auto-start- procedure.
-
For units at
operating temp.:
No sooner than 45 min. after probe placement.
Comparative measurement
procedure:
(Calibrated thermometer: 37.0 °C
±
0.1°C)
Place the probe in the center of the sample chamber, 15 mm above the insert tray.
Open the doors as briefly as possible for this step.
Allow the unit to reach equilibrium or the -auto-start- routine to finish.
Read the probe value and compare it with the displayed value.
Deviation:
<
±
0.2°C
No adjustment necessary.
>
±
0.2°C
Refer to Section 9.1 of the operating instructions
(p. 42 onwards).
