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3
Installation
3.1
Ambient and process conditions
The correct function of the device within the specific technical data can only be guaranteed, if the permitted ambient and
process conditions at the installation place (see chapter Technical Data) will not be exceeded. Hence make sure before
mounting that all parts of the instrument exposed to the process (e.g. measuring membrane, process seal, enclosure,
extension cable) are suitable for the existing process conditions (e.g. process pressure, process temperature, chemical
properties of the medium, abrasion, mechanical influences).
3.2
Installation place
The device should be installed at a point free from flow and turbulence, or a guide tube should be used. The internal
diameter of the guide tube should be at least 1 mm bigger than the outer diameter of the device.
Install device below the lowest measuring point.
Do not mount the device in the fill flow, in the suction area of a pump, in the tank outlet or at a point in the container which
could be affected by pressure pulses from an agitator.
The installation of the device should be made if possible at temperature calmed places. High process temperature steps can
produce short-time higher measuring signal deviations.
At underrun of the dew point, e.g. cold process medium at high environmental temperature, there is the possibility of
condensate formation within the pressure measuring sensor, which can lead to temporary increased measurement deviations
resp. malfunctions. These deviations are fully reversible by drying the condensate.
The cable must end in a dry room or a suitable terminal box.
① Filling level sensor
② Guide pipe
③ Extension cable (bending radius > 80mm)
3.3
Installation notes
Do not remove packaging until just before mounting and check the device for any damage. The transport protection cap,
which is attached at the process connection resp. the diaphragm, must only be removed immediately before the installation.
The transport protection cap must be removed. The diaphragm may not be damaged.
Pollution or damaging of the pressure compensation capillary can lead to faulty measuring results.
If the cable is shortened, the filter at the pressure compensation tube has to be reattached.
WARNING: Install the device only when the system is pressureless. There is a risk of fast escaping media resp. pressure blow.
WARNING: Let the system cool down sufficiently before installing the device. There is a risk of dangerous and hot media
escaping.
6
Y O U R P A R T N E R F O R M E A S U R E M E N T & A U T O M A T I O N
6
5
4
3
2
1
④ Mounting clamp – see accessories
⑤ Mounting screw – see accessories
⑥ Field enclosure
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