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2.5 Physical dimensions
3. Installation
3.1 Requirements for installation environment
B39 VW-M series ultrasonic water meter has been designed for indoor installation in
non-condensing environments with ambient temperatures from 5~55
°
C.
The meter must not be under any mechanical stress when installed in the pipe.
The meter must be protected against pressure shocks in the pipe.
Protection class IP68 allows long-term submergence, provided that all cable unions have
been correctly mounted and that the plastic cover has been properly fastened.
Make sure the meter is installed sufficiently far away from possible sources of
electromagnetic interference (switches, electric motors, fluorescent lamps, etc.).
All control cables must be drawn separately and not parallel to e.g. power cables or other
cables with the risk of inducing electromagnetic interference. There must be a distance of
min. 25cm between signal cables and other installations.
If two or more meters are to be installed shall be in parallel, the axis-center distance
between two meters shall be at least 135mm minimum.