Kendro HERAcell 150, Operating Instructions Manual

Page: 115 / 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 9/ 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
Fault detection and display (software):
The error diagnostics system detects faulty functions and passes corresponding
information to the display board.
RS 232 interface:
An RS 232 interface is part of the standard unit equipment.
Control of the zero-potential alarm contact:
In case of a fault, the standard alarm contact (center-zero relay) is activated.
Door switch connection:
The glass door state is determined by the door switch (contact closed when
the glass door is open!).
Acoustic signal generator:
A short acoustic signal sounds if the door remains open for longer than 30 sec.
to indicate that the various "time-locked" routines can be selected (auto-start;
90

C decontamination routine).
In addition, the horn on the main PCB is activated when a fault is detected.
The horn signal can be separately turned off for error reporting and the door
open state, using FL 6.
Expansion port / 3rd I²C bus connector
This is designed to be used to connect future bus subscriber components.
O
2
board
Comprises the following functions:
Measured value acquisition
O
2
valve activation.
Gas guard
For change-over from one gas cylinder to the other.