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
1/ 1
4 CONTROL AND REGULATING SYSTEM
Contents ............................................................................................................................................... Page
4.1
DESCRIPTION OF CONTROL AND REGULATING SYSTEM ................................................. 2
4.2
DESCRIPTION OF ELECTRONIC CONCEPT .......................................................................... 3
4.3
DESCRIPTION OF FUNCTIONAL GROUPS ............................................................................ 5
4.4
SWITCHING THE UNIT ON ....................................................................................................... 9
4.5
CONTROL AND REGULATING SYSTEMS CONFIGURATION .............................................. 10
4.6
ERROR TABLE ......................................................................................................................... 19
4.7
ERROR EXAMINATION AND REGULATION CIRCUIT SCHEMATICS ................................... 21
4.7.1
GENERAL ERRORS ................................................................................................................. 21
4.7.2
TEMPERATURE MEASUREMENT/REGULATING CIRCUIT-INCUBATION MODE ................ 23
4.7.3
ERROR IN TEMP. MEASUREMENT/REGULATING CIRCUIT-INCUBATION MODE ............. 24
4.7.4 CO
2
-METERING AND REGULATION CIRCUIT ........................................................................ 25
4.7.5
ERROR IN CO
2
-METERING AND REGULATION CIRCUIT ..................................................... 26
4.7.6 TEMPERATURE MEASUREMENT/REGULATING CIRCUIT – DECONTAMINATION MODE
AT 90°C………………………………………………………………………………………………….. 27
4.7.7 ERROR IN THE TEMPERATURE MEASUREMENT/REGULATING CIRCUIT -
DECONTAMINATION MODE AT 90°C……………………………………………………………… 29
4.7.8
FAULTS WITHOUT ERROR MESSAGES ................................................................................ 30
4.8
FAN SYSTEM AND ERRORS ..................................................................................................... 31
4.9
DISPLAY PCB OR I
2
C-BUS CABLE REPLACEMENT ............................................................. 32
4.10
SENSOR BLOCK REPLACEMENT .......................................................................................... 32
4.11 MAIN
BOARD
REPLACEMENT ................................................................................................ 33
4.12 PERFORMING
ADJUSTMENTS ............................................................................................... 34
4.12.1 ADJUSTMENTS - INCUBATION MODE ................................................................................... 34
4.12.2 ADJUSTMENTS - CO
2
-METERING AND REGULATION CIRCUIT .......................................... 35
4.13 TEMPERATURE ADJUSTMENTS DECONTAMINATION MODE………………………………….36
GENERAL NOTE:
AN UNDERSTANDING OFT HE OPERATING INSTRUCTIONS IS AN
ESSENTIAL REQUIREMENT FOR OPERATING THIS DEVICE!
