Kendro HERAcell 150, Operating Instructions Manual

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Name/Name Datum/Date Benennung/Designation
Erstellt/Prepared
D.Dornseiff 01/15/98
Index Änderung Name/Name Datum/Date
Service Handbuch HERAcell 150
Service Manual HERAcell 150
C 202613 D.Dornseiff 06/26/03
Dokumentnr./Document No. Seite/Page
Datei/File
50051109_04_EN_C.doc 50051109 / C 1/ 9
Weitergabe sowie Vervielfältigung dieser Unterlage, Verwertung oder Mitteilung ihres Inhalts nicht gestattet, soweit nicht ausdrücklich zugestanden. Zuwiderhandlungen ver-
pflichten zu Schadensersatz. Alle Rechte für den Fall der Patenterteilung oder Gebrauchsmustereintragung vorbehalten. © Kendro Laboratory Products GmbH, Germany
4 CONTROL AND REGULATING SYSTEM
HERAcell 150 with water level sensor(WLS), O
2
addition(O2), and gas guard
Contents ............................................................................................................................................... Page
4.1 DESCRIPTION OF CONTROL AND REGULATING SYSTEM ................................................. 3
4.2 DESCRIPTION OF ELECTRONIC CONCEPT .......................................................................... 4
4.3 DESCRIPTION OF FUNCTIONAL GROUPS ............................................................................ 7
4.4 SWITCHING THE UNIT ON ....................................................................................................... 11
4.5 CONTROL AND REGULATING SYSTEMS CONFIGURATION .............................................. 12
4.6 ERROR TABLE.......................................................................................................................... 20
4.7 ERROR EXAMINATION AND REGULATION CIRCUIT SCHEMATICS ................................... 22
4.7.1 GENERAL ERRORS.................................................................................................................. 22
4.7.2 TEMPERATURE MEASUREMENT/REGULATING CIRCUIT-INCUBATION MODE................ 24
4.7.3 ERROR IN TEMP. MEASUREMENT/REGULATING CIRCUIT-INCUBATION MODE.............. 25
4.7.4 TEMPERATURE MEASUREMENT/REGULATING CIRCUIT-DECONTAMINATION MODE... 26
4.7.5 ERROR IN TEMPERATURE MEASUREMENT/REGULATING CIRCUIT-
DECONTAMINATION MODE AT 90°C ..................................................................................... 28
4.7.6 CO
2
-METERING AND REGULATION CIRCUIT........................................................................ 29
4.7.7 ERROR IN CO
2
-METERING AND REGULATION CIRCUIT ..................................................... 30
4.7.8 O
2
- METERING AND REGULATION CIRCUIT......................................................................... 31
4.7.9 ERROR IN O
2
-METERING AND REGULATION CIRCUIT........................................................ 32
4.7.10 FAULTS WITHOUT ERROR MESSAGES ................................................................................ 33
4.8 FAN SYSTEM AND ERRORS ................................................................................................... 34
4.9 GAS GUUARD AND ERRORS.................................................................................................. 35
4.10 DISPLAY PCB OR I
2
C-BUS CABLE REPLACEMENT............................................................. 37
4.11 SENSOR BLOCK REPLACEMENT .......................................................................................... 37
4.12 MAIN BOARD REPLACEMENT................................................................................................ 38
4.13 CHECKING / REPLACING THE WATER LEVEL SENSOR ..................................................... 39