41
o p e r a t i n g t h e a n a l y z e r
r
When CLEANER REQUIRED is displayed, a cleaning cycle
must be completed before calibration or sample analysis is permitted.
Performing a cleaning cycle is the only daily maintenance required,
and is essential to promote trouble-free analyzer operation.
As preventive maintenance or when a PCO
2
or PO
2
electrode is being
replaced, a more aggressive cleaning procedure can be performed to
remove accumulated protein within the sampler and preheater. The fre-
quency of this procedure is dependent on the number and quality (high
protein concentrations) of patient samples run. This procedure can be
performed infrequently (once every 6 months) or as frequently as once
per month. Each laboratory should establish their own preventative
maintenance program. To perform this preventative maintenance, refer
to the Sample probe/sensor module obstructions procedure found
under FLOW in Troubleshooting.
s
H
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