Kendro HERAcell 150, Operating Instructions Manual

Page: 139 / 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 33/ 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
4.7.9 ERROR IN O
2
METERING AND REGULATION CIRCUIT
Error
code
(Unit display)
Test equip-
ment / Test at
the unit
Inspections and tests Possible corrective ac-
tions
300 O
2
Gas: on LED
continuously lit.
Check the initial gas pres-
sure.
Check the flow through the
sterile filter.
Perform an O
2
valve func-
tional test (FL3)
Check the flow through the
O
2
valve.
Check the tubing.
Adjust the correct initial
gas pressure.
Replace any defective
parts.
Replace the main
board as required.
301 O
2
Gas: off LED
always off.
Initial gas pressure far too
high.
Perform an O
2
valve func-
tional test (FL3)
Check the set value (against
the direction of regulation).
Adjust the correct initial
gas pressure.
Replace any defective
parts.
Remove excess
gas.
Replace the main
board as required.
304 O
2
display reads
99.9.
Check the O
2
sensor
(plugged in / operational?)
For TCD
Check the cross-
compensation (see Sec.
4.14.3)
Plug sensor head in, if
required; replace if de-
fective.
Adjust the cross-
compensation.