Jevatec JEVAmet, Инструкция по эксплуатации

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BA_IOM_02.2018_EN 13
5.
Installation
5.1 Mechanische Installation
The installation of the JEVAmet
®
IOM is carried out directly on the vacuum system. Basically,
the JEVAmet
®
IOM is operational at any arbitrary mounting position.
It is recommended to choose a mounting location with unimpeded airflow. During bakeout
of the vacuum chamber for achieving very low pressures the JEVAmet
®
IOM should be
mounted in a way so that the convection heat of the heated vacuum chamber does not
significantly heat up the instrument. As a matter of principle, the ambient temperature must
not exceed the specified temperature of 45 °C.
The most common cause for the failure of vacuum gauges is the contamination of the
sensor. Contamination can occur by reactions of process gases with sensor parts, by
accumulation of process material on sensor parts or by charged particles which have
entered from a process in the vacuum system. Possible consequences of a contamination
of the sensor are noisy or erroneous measured pressure values or even a total failure of the
sensor. Instrument failures which are caused by contamination are not covered under the
warranty.
A suspended mounting position (vacuum flange upside) is to be avoided especially for
vacuum applications which are subject to condensation or other precipitates. Protect the
sensor from contaminations especially in vacuum applications with sources of material or
charged particles (vaporization etc.) or when there is danger of oil contamination.
If necessary the sensor can be protected by choosing a noncritical mounting position and/or
by application of a baffle, elbow pipe, gate valve etc.
NOTE:
During the installation of the vacuum gauge always proceed with the required
carefulness.
WARNING: Disconnection
Set up and install the vacuum gauge in such a way that a disconnection of the
voltage supply is possible at any time.
CAUTION: Vacuum component
Dirt and damages impair the function of the vacuum component.
When handling vacuum components, take appropriate measures to ensure
cleanliness and prevent damages.
DANGER: Contaminated parts
Contaminated parts can be detrimental to health and environment.
Before beginning to work, find out whether any parts are contaminated.
Adhere to the relevant regulations and take the necessary precautions when
handling contaminated parts.
•
Remove the protective lid. Keep the protective lid for servicing.
•
Connect the vacuum gauge to the vacuum system. Please note the previous specified
mounting instructions and warnings.