Kendro HERAcell 150, Operating Instructions Manual

Page: 131 / 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 25/ 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
4.7.2 TEMPERATURE MEASUREMENT/REGULATING CIRCUIT – INCUBATION
MODE
Short description:
Sample chamber with controlled, directly mounted heating lines. The unit's air
jacket supports the temperature equilibrium.
Exterior door with mounted heating lines to prevent condensation from forming
on the glass.

P-based temperature regulator with PT1000 as the temperature sensor (inte-
grated in the sensor block).

P-based sample protection function with an upper limit band value that serves
as the trigger threshold to activate the software module.
Plausibility check of the temperature sensor signals (PT1000 and digital sensor,
LM 75, in the sensor block).
The individual heating circuits are activated separately, and for varying lengths
of time.
Circuit diagram:
See circuit diagrams in Chapter 3.
Technical specifications – incubation mode:
Nominal voltage: 230 VAC or 120 VAC
Power consumption: 0.63 kW (HERAcell 240, 230 VAC)
0.64 kW (HERAcell 240, 120 VAC)
Heater resistors Chapter 6: Metering and Test List