Labfors 5 – Version for Microorganisms
Setup and Function
22 January 2019
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However, using this method may lead to blocking the exit gas filter
due to humidity in the exit gas. For this reason, the use of an exit
gas cooler is strongly recommended.
The exit gas cooler is separately available, it is NOT included in the
standard package.
Deviating the exit gas via exit gas cooler
The exit gas cooler dries the exit gas by condensation so that hu-
midity cannot block the exit filter. This prevents from liquid loss in
the culture medium at the same time.
INFORMATION
If strong build-up of foam is expected, a foam trap i.e. a bottle
containing antifoam agent can be installed before the exit gas fil-
ter as an additional safety precaution.
For details see main chapter “Accessories”, chapter “Exit Gas
Cooler”.
3.8 pH Control
pH in the medium is measured by the pH sensor and controlled by
addition of reagents (acid, base). Addition of acid and base takes
place via the two peristaltic pumps
Acid
and
Base
.
Reagent bottles are filled with acid and base which are connected
to an/the addition port adapter(s) in the vessel top plate and the
two pumps by silicone hoses.
3.8.1 Measurement System
The measurement system for pH is either equipped and configured
for analogue sensors from the manufacturer METTLER or digital
sensors from the manufacturer HAMILTON.
The pH sensors are separately available, they are NOT included in
the standard packages.
Variant METTLER
Traditional pH sensor (potential measurement against refer-
ence)
Type: 405-DPAS-SC-K8S
Manufacturer: METTLER TOLEDO
Содержание Labfors 5
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