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3.5 Installation of Non-Return Valve
The meter can be supplied with a non-return valve (if required) on request. The non-return
valve must be installed on the water inlet end of meter when installing.
3.6 After the installation
The tightness must be proved by pressurizing with cold water, slowly filling the pipe on
completion of the installation;
Open the shut-off valves carefully and check installation for leakage. While the piping
system is operating, check whether the volume display correctly and the temperatures
display corresponding with the actual temperatures (see the display information);
When the response thresholds are exceeded and the flow rate is positive, the volume is
summated;
Make the segment test, in order to displays all display segments for test purposes;
The operating hours are counted from initial connection of the battery. The date is
incremented daily. As a standard the meter is delivered with the local time, or destination
time if required.
4. Power supply
B39 VW-M Series can be fitted with one ER26500 with operating time of 6+1 years
respectively.
Brand
EVE
Type
Lithium Battery
Model No.
ER26500
Rated capacity
9000mAh
Rated voltage
3.6V
Max recommended continuous operating current
130mA
Max pulse current
180mA
Reference weight
28g
Operating temperature
-55°C
～
+85°C
5. Interface & Communication
5.1 IrDA
B39 VW-M Series are all equipped with an optical interface IrDA to IEC62056-21 as a