Valeport Ltd 0804IDU Benutzerhandbuch
HydrINS 2 / HydrINS 2 Mini flow meter
Installation Manual
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8.11.2 Installing Display G & E and the external antenna
This can be installed inside a chamber or, because it is watertight, on the outside in a protective
casing or in a building. The device shall be positioned according to site accessibility and the
surrounding environmental conditions. For countries with a harsh winter climate, it is best to place
the device underground (deep enough to be protected from the cold) or in a building.
casing or in a building. The device shall be positioned according to site accessibility and the
surrounding environmental conditions. For countries with a harsh winter climate, it is best to place
the device underground (deep enough to be protected from the cold) or in a building.
According to the type of installation envisaged, several types of aerial are available. It is essential to
make a careful installation method in order to guarantee good data transmission subsequently. The
quality of the signal level (value from 0 to 31) must be verified for each site, and the measured value
must be greater than 7 for data transmission by SMS, or greater than 12 if data is being sent via
GPRS.
make a careful installation method in order to guarantee good data transmission subsequently. The
quality of the signal level (value from 0 to 31) must be verified for each site, and the measured value
must be greater than 7 for data transmission by SMS, or greater than 12 if data is being sent via
GPRS.
There are three possible aerial installation cases:
Aerial outside in a protective casing:
This type of installation has the major advantage of providing a high signal level, ensuring better data
transmission. The aerial can also be positioned on a mast or pole near the port, whilst installing the
HydrINS display logger inside the port.
transmission. The aerial can also be positioned on a mast or pole near the port, whilst installing the
HydrINS display logger inside the port.
Aerial in a port/valve chamber:
This installation can be created with a half-wave aerial or a dipole aerial, because both have a
magnetic base. Because each site has different characteristics, a signal level test must be carried out
with the port closed. In the event of a negative result, try a different aerial position.
magnetic base. Because each site has different characteristics, a signal level test must be carried out
with the port closed. In the event of a negative result, try a different aerial position.
: An aerial can also be placed under the cast iron plate, but
remember that there is a risk of knocking the aerial off each time the
port is opened. This installation is recommended for occasional
measurements.
port is opened. This installation is recommended for occasional
measurements.