WIKA PGW23.100.11 Betriebsanleitung Seite 21

6. Commissioning, operation
Information on the installation of the receiving gateway
Position the gateway so that the sending power of the model PGW23.100.11 is used
optimally. For this, the following recommendations should be observed:
Depending on the application, a gateway for indoor or outdoor use should be selected
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(→ for details see chapter 11 "Accessories").
Between the instrument antenna and the gateway, there should be as few barriers as
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possible (e.g. walls and hills)
If possible, the gateway should be installed above the measuring instrument(s)
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Permissible vibration load at the installation site
The instruments should always be installed in locations free from vibration. If necessary,
it is possible to isolate the instrument from the mounting point, e.g. by installing a flexible
connection line between the measuring point and the instrument and mounting the
instrument on a suitable bracket.
If this is not possible, the following limit values must not be exceeded:
Frequency range < 150 Hz
Acceleration < 0.5 g (5 m/s
Test connection
In specific applications (e.g. steam boilers) the shut-off devices must have a test
connection, so that the instrument can be tested without being dismounted.
Temperature load
The installation of the instrument should be made in such a way that the permissible
operating temperature, also considering the effects of convection and thermal radiation,
neither exceeds nor falls below the permissible limits. Thus the instrument and the
shut-off device must be protected by sufficiently long measuring lines or syphons.
The influence of temperature on the indication and measurement accuracy must be
observed.
WARNING!
The actual maximum surface temperature depends not on the equipment
itself, but mainly on the operating conditions. With gaseous substances,
the temperature may increase as a result of compression warming. In these
cases it may be necessary to throttle the rate of change of pressure or
reduce the permissible medium temperature.
Pressure tapping point
The pressure tapping point should be arranged with as large a bore as possible (≥ 6 mm)
via a shut-off device, so that the pressure tap is not distorted by a flow in the medium. The
measuring line between the pressure tapping points and the instrument should have a
large enough internal diameter to prevent blockage and lag in the pressure transmission.
WIKA operating instructions, model PGW23.100.11
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EN
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