Operating Instructions BioPAT
®
Xgas
29
Operating Information
Biostat
®
C Plus bioreactors
t
If the zero point of the DO sensor with oxygen
is calibrated, switch the exhaust line to the
bypass via the solenoid valves.
t
Calibrate the zero point of the built-in DO
sensor with nitrogen.
t
Ensure that the process temperature is below
40°C.
t
Switch the exhaust line to the BioPAT
®
Xgas
via the solenoid valves. For bioreactors with
automatic valves, check that the valves have
switched using the control.
If the exhaust is not directed to the ambient
air, ensure that both the BioPAT
®
Xgas and the
bypass are connected to their joint line!
Conducting measurements with the BioPAT
®
Xgas Every time the device is connected to or
disconnected from the power supply, it will take
about an hour to warm up. The displayed mea-
surement signal is related to the current signal of
approx. 2.3 mA from the sensor during the
warm-up phase.
t
If the measurement and control system of the
bioreactor only indicates the measured
values, monitor the course of process on the
operator display.
t
If the measurement and control system of the
bioreactor can log the measured values, con-
figure this log as described in the [→ Operat
-
ing instructions for the control system].
IMPORTANT
