Roche cobas b 221 system User Manual

Roche Diagnostics May 2009
D-104 Service Manual · Version 9.0
7 Troubleshooting cobas b 221 system
Important test routines
ISE
h At the ready screen, press [System] > [Component test] > [Meas. sensors] > [ISE].
Use this function to monitor the ISE module.
Overview The current sensor values will be displayed in the column "Signal". Standard
deviation in column "Std. dev." must not exceed the follwing values for optimal
aspiration of Mix 1:
Aspirate Mix 1: h Press [Aspirate Mix 1].
Mix 1 will be positioned into the measurement chamber.
External sample: h Press [External sample].
An external sample will be positioned into the measurement chamber.
Figure D-9 ISE
Sensor Signal from[mV] Signal to [mV] Std. dev. [mV]
Ca
2+
-2000 2200 1.2
K
+
-1700 2100 1.2
Na
+
-1700 2300 1.2
Cl
–
-2300 1700 1.2
Ta bl e D -4
The boundaries provided for standard deviation are valid for Mix 1 only!

Roche cobas b 221 system Specifications

General

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