Infors HT Minifors 2, Руководство по эксплуатации, Страница: 87 / 217

Minifors 2 - Benchtop Bioreactor
Before Cultivation
07 February 2019 Page 85 of 214
8.1.15 Preparing the Sensors
All sensors that come into contact with the medium are mounted
before autoclaving and are sterilised together with the culture ves-
sel.
Note the following about all sensors:

Mount all sensors by hand – do not use any tools!

Mount the sensors in such a way that they cannot come in
contact with other components or the glass vessel.

If the mounting depth of is adjustable (mounting with electrode
holder/clamping adaptor), make sure the mounting depth is
set correctly prior to autoclaving, as later adjustment repre-
sents a contamination risk.
pH sensor

Calibrate the pH sensor on the operating panel before mount-
ing and autoclaving.
pO
2
sensor

Mount the pO
2
sensor in such a way that it has good access
to the flow and there is no risk of bubbles collecting. (Calibra-
tion is carried out AFTER autoclaving)
pH sensor & pO
2
sensor

For vessels with a nominal width of 90 and 145: screw the
sensors directly into 12 mm/Pg13.5 port.

For vessels with a nominal width of 115: mount the sensors
with an electrode holder.
ATTENTION
Risk of damage to the pH and pO
2
sensors. Covering the sensor
heads with aluminium foil during autoclaving may lead to water
gathering under the film, thus damage the contacts on the sen-
sor head.
pH and pO
2
sensor heads may NOT be covered with aluminium
foil during autoclaving!
For details on the safety, technical data, usage and maintenance
requirements for the pH and pO
2
sensors, see the separate docu-
mentation provided by the sensor manufacturers.