Kendro HERAcell 150, Operating Instructions Manual

Page: 142 / 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 36/ 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
4.9 GAS GUARD AND ERRORS
Short description:
When the pressure in one of the gas guards falls below 0.6 bar for 2 minutes, the
gas supply is automatically switched to the other gas cylinder.
The reaction time of two minutes avoids the possibility of the gas guard switching
the brief pressure changes.
In the event of an error the appropriate display (CO
2
or O
2
) will alternate between
the actual value and the error info.
If the pressure in both cylinders is below 0.6 bar an alarm will sound, the potential
free contact will switch and an error info on the display (CO
2
or O
2
) will flash.
Errors ot the gaws guard:
Error
info
Faulty function Inspections and tests Possible corrective
actions
A - Gas cylinder A is
empx.
Check the bottle pressure.
Check hose connection.
Change gas cylin-
der.
Recover hose con-
nection.
B - Gas cylinder B is
empx.
Check the bottle pressure.
Check hose connection.
Change gas cylin-
der.
Recover hose con-
nection.
A b - Booth gas cylinders
are empty.
Check the bottle pressure.
Check hose connection.
Change gas cylin-
der.
Recover hose con-
nection.
Error
code
Faulty function Inspections and tests Possible corrective
actions
206 Booth CO
2
gas cyl-
inders are empty.
Check the bottle pressure.
Check hose connection.
Change gas cylin-
der.
Recover hose con-
nection.
207 CO
2
gas guard is
defective.
Check hose connection
and electical connec-
tors. Recover connec-
tors
Change gas guard
306 Booth O
2
/NO
2
gas
cylinders are empty.
Check the bottle pressure.
Check hose connection.
Change gas cylin-
der.
Recover hose con-
nection.
307 CO2 gas guard is
defective. Check hose connection and
electical connectors. Recover connec-
tors
Change gas guard.