Temperature on the Micro Processor
Unit (MPU) has been exceptionally high
and has exceeded 70°C.
Check the filters in the fan and
vent.
Check the operation of the fan.
(Note that at temperatures below
25°C, BioTector automatically
switches the fan off to stabilize system
temperature using its own internal
heat.)
Check ambient temperature,
which should be less than 45°C.
Confirm that the Analyzer is not
exposed to direct sun light.
If the problem is not related to
above, contact the distributor or
the manufacturer.
System has detected a possible
blockage or restriction in the reactor,
Reactor Valve (MV3), Sample Valve
(MV4) or associated tubing and fittings.
See Reactor Purge Check and Reactor
Purge Band defined in Pressure/Flow
Test Program menu 8.3.4.5
Pressure/Flow Test Program.
Various, for example,
air and oxygen supply problem.
Check oxygen pressure looking at
the Oxygen Controller Status (O2-
CTRL STATUS) menu. It should
be 400mbar (±10mbar) at 20 l/h
MFC flow.
Blocked reactor.
Faulty/blocked Reactor Valve
and/or Sample Valve.
Blocked tube after MFC.
Faulty MFC.
Run Flow Test (see Section
8.1.1.2 Flow Test for details).
There is a problem with the “sample
ready” signals, sent from the Sigmatax
Sampler to the BioTector. See
Sigmatax Fault Delay in section 8.3.8
Fault Setup for details.
Check Sigmatax Sampler and its
operation referring to Sigmatax
user manual.
Check the optical cable and wiring
between Sigmatax and BioTector.
An error signal (fault condition) is sent
from the Sigmatax Sampler to the
BioTector. See Sigmatax Fault Delay in
section 8.3.8 Fault Setup for details.
Check Sigmatax Sampler referring
to Sigmatax user manual.
Rectify and acknowledge the
Sigmatax fault condition.
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