Flanged water meters / flow meters, DN40-400-
IP65/68
-CE – Operating Manual
Page 14 of 19
9. Priming with water, commissioning, and
operation
of the
water/flow meter
9.1 Before installing a water/flow meter in the piping, flush the piping to remove all debris and contamination.
If a filter is to be used, it must be cleaned before the installation
process. For the flushing process, the
water/flow meter must be replaced with a straight pipe spool.
9.2 Prior to its installation, perform a functional test of the water/flow meter: spin the propeller/vane wheel
and check it for the correct direction of rotation. Verify the condition of the tamper seals.
9.3 With the
water/flow meter installed in the piping, open the water flow starting at a small rate with all vents
open so that the air bled from the system does not cause the propeller/vane wheel to overspeed, which may
result in bearing failure during a dry run.
9.4 During operation, the stop valves upstream and downstream of the water/flow meter must be fully open.
9.5 Having completed the commissioning tasks, verify that the measurement device is operational: its
reading should increase as the water flow increases. Specifically inspect that
the measurement device
and/or its connections do not leak water
.
9.6 During operation of the measurement device periodically verify that the actual operating conditions are
within the limits of intended use, especially the limits of pressure, temperature, and flow rate,
and that the
measurement device and/or its connections do not leak water
.
10. Storage and transport
The brand-new or removed existing water/flow meter must be kept with the counter upwards or to the side,
indoors, away from corrosive vapours, odours, and other agents which might be detrimental to the meter.
The indoor storage temperature must be b5°C and +50°C at a relative air humidity not exceeding
90%. Protect the measurement device during storage and transport from vibration and shock which may
damage the enclosure or internal components. Transport the meter in sheltered vehicles, in its original
packaging or its substitute, whichever fully protects the meter from damage. If transported in low-temperature
weather conditions, it is best to keep the product dry.
11. Troubleshooting
If the counter fails to indicate despite the water flowing through the water/flow meter, check that the
propeller/vane wheel is not jammed by dirt. If the meter fails to operate, even if clean and unclogged, or
whenever other damage is evident, return the meter for repairs with an appended claim for the discovered
defects. If the pulse transmitter module fails, report this to the manufacturer. If the troubleshooting is
ineffective despite any instructions received from the manufacturer, return the meter for repairs.