Roche cobas b 221 system User Manual

Roche Diagnostics May 2009
D-102 Service Manual · Version 9.0
7 Troubleshooting cobas b 221 system
Important test routines
Sample Sensors
h At the ready screen, press [System] > [Component test] > [Control sensors] >
[Sample sensors].
Use this test to check the optical sample sensors of the sample distributor, the Hb
cartridge, the AutoQC module, the waste separator and the vacuum pump protector.
Measure: The measured values of all sample sensors are refreshed with the measuring medium
located in the sample path. If no sample was injected, the displayed measurement
values are valid for the empty sample sensor (air).
Inject bypass: Inject a sample and press [Measure]. The measured values of sample sensors are
redetermined. A significantly lower value will be displayed with injected sample.
Inject sample distributor: Inject a sample and press [Measure]. The measured values of sample sensors are
redetermined. A significantly lower value will be displayed with injected sample.
Aspirate waste: The measured values of the waste separator sensor are determined.
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.
After successful installation, the parameter must be permanently deactivated!
Figure D-7
Item Description
Cal Air calibration value
I-LED LED current in mA, < 255 mA
Meas. Measured value
Meas. [%] Measured value related to air value
Separator Waste sensor measured value
VPS VPS measurement value
Status Fill status of waste separator or VPS
Ta bl e D -2

Roche cobas b 221 system Specifications

General

Brand	Roche
Model	cobas b 221 system
Category	Medical Equipment
Language	English