Roche Diagnostics May 2009
Service Manual · Version 9.0 B-5
cobas b 221 system 3 Protected software functions
Protected setup
Protected setup
Sample counter
This function allows manual editing of the internal sample counter. See Samples for
the sum of all samples input (can be edited by the keyboard symbol), QC samples for
the number of QC samples input (can be edited by the keyboard symbol) and
Measurements for the number of measurements made (can be edited by the keyboard
symbol).
Baro settings
This function allows various barometer settings to be manually edited.
The following options are available:
P_atm, SENS, ZERO In case of errors read the factory settings from the label on the vacuum control board
and type them in here. See Figure B-1 on page B-5.
Baro [mmHg] input the baro value with the keyboard symbol.
[Update EEPROM] this key allows the data of the vacuum EEPROM to be updated by the cobas b 221
system software. The data on the hard disk are written to the EEPROM.
A Label
Figure B-1 Baro settings, factory settings (label)
P_atm, SENS and ZERO are default settings which may only be changed in case of errors according
to the values on the label!
IMPORTANT:
o
From approx. 3000 m above sea level or air pressure < 526 mmHg (70.13 kPa), the
specifications for parameter PO
2
are no longer fulfilled and the parameter must no longer be
used for evaluation of the clinical decisions.
o
After successful installation, the parameter must be permanently deactivated!