Kendro HERAcell 150, Operating Instructions Manual

Page: 140 / 251

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 34/ 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
4.7.10 Faults without Error Messages
Error
code
Faulty function Inspections and tests Possible corrective actions
- Heavy condensa-
tion in the sample
chamber Check the sample
chamber heater ac-
tuators (heaters E2-
E8).
Check the unit ver-
sion. Replace the main board.
Return to factory for repairs.
Set correct set of parameters
(FL 601)
- Heavy condensa-
tion on the glass Check the door
heater actuator
(heater E1).
Check temperature
switch N2 in the ex-
terior door.
For software version
<200: check door
factor (FL 8)
Check set of pa-
rameters (since
software version
200) Replace the main board.
Replace the entire exterior
door.
Set correct door factor
Set correct set of parameters
(since software version 200,
FL 601)
- Incorrect CO
2
concentration in
the unit (see also
Sec. 4.14.3).
Check the air pump.
For WLD:
Check the O
2
cross-
compensation
Check the O
2
sensor
function.
Check the auto-zero
valve.
Replace any defective parts.
Adjust the cross-
compensation.
- Water level sen-
sor fails to acti-
vate when water
level is too low. Check the power
supply.
Check the voltage at
JP1
See circuit diagram
in Sec. 4.13. Replace the main board.
Contact the factory.