Roche Diagnostics April 2007
E-4 Service manual · Version 2.0
91xx pH/Electrolyte Analyzers
Pump One peristaltic pump transports the sample and
the operating fluids inside the instrument.
QC abbr. for Quality control
QC material see ISETROL
Quality control A quality control program includes the
analysis of sample materials with known ranges of
expected values and the comparison of these values with
analyzer results.
"Ready" mode Top level of the analyzer mode.
Reference electrode The reference electrode must
always produce the same signal, regardless of the sample's
composition. This is achieved by mixing the sample flow
with a liquid of a higher KCl concentration (reference
solution).
Rubber sealing sealing of SnapPak.
Sample contact Sample contacts support monitoring
(conductivity) when filling the measuring chamber with
fluid.
Sample sensor Sample sensors support monitoring
(optically) when filling the measuring chamber with
fluid.
Sample throughput Number of samples per hour.
SnapPak Calibration solutions for ISE including waste
container.
Volume limitation Is the maximum volume of sample
which is aspirated from the container.
Waste Container Waste water, part of the SnapPak.
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