Freeze-dryer Epsilon 2-10D LSCplus
5 Set-up and connection
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Version 07/2022, Rev. 3.0 of 20/07/2022
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Translation of the original operating manual
5.2.6
Vacuum sensor
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NOTE
Please refer to the separate operating manual of the vacuum sensor!
As standard, the freeze-dryer is equipped with a Pirani vacuum sensor (e.g.
Thyracont VCP63, position see chapter 2.1.1 - "Functional and operating
elements").
As a standard option, capacitive vacuum sensors (Pfeiffer CMR 363 and
364) can be retrofitted, e.g. if solvent-containing products are to be
processed.
NOTE
If only capacitive sensors are used, comparative pressure measurement
is not possible.
Installation of the vacuum sensor
In order to protect the vacuum sensor against transport damage, it comes
supplied in its original packaging. Prior to commissioning the freeze-dryer,
the sensor must be installed.
• Switch the unit off by actuating the mains power switch.
• The screws for the left-hand side panel are located at the back of the
unit. Loosen the screws and take the panel off diagonally towards the
back.
• Take the vacuum sensor out of its original packaging and fasten it to the
connector with a clamping ring (DIN16KF) and a centring ring (both
included in the scope of supply).
• Plug the connector (installed on the unit) onto the vacuum sensor and
hand-tighten the screw on the connector.
NOTE
It is absolutely essential to comply with the manufacturer’s instructions in
the separate operating manual of the vacuum sensor!
NOTE
The vacuum sensor comes supplied in a calibrated state.
After power-on, the vacuum sensor needs a few minutes to reach its
operating temperature.
