ESM-UM-03099-EN-02
For 5/8…1 in. Threaded Ends
• Start the coupling nuts at the threaded meter ends. Verify that the nuts are properly aligned to avoid cross-threading
or damage to the meter ends.
• An effective method for starting a coupling nut is:
i. Position the nut squarely against the meter's spud end.
ii. Turn the nut counterclockwise (in reverse) while holding the nut against the meter spud end. When the first
threads on both the nut and the spud end coincide, you will hear a slight click and feel the nut move into the
starting position.
iii. Tighten the nut by hand until it is tight.
iv. With an open-end wrench, apply a partial turn. Do not over tighten. For plastic swivel connections, a one-quarter
turn beyond hand-tight is usually sufficient.
12. After the meter is installed, slowly open the inlet shuto valve until the meter is full of water and ensure there are no
leaks. (The more ow you allow through the meter, appropriate for the meter size, the better.)
Take caution when opening the inlet valve to avoid damage to the pressure sensor due to extreme water
hammer.
13. Slowly open the outlet valve until air is out of the meter and service line.
14. Slowly open a service valve downstream of the meter and verify that no foreign debris in the water obstructs the
operation of the system.
15. Check the read on the meter to make sure it is registering a positive number. If it is not, make sure the meter is installed in
the correct direction.
• The meter is shipped in storage mode so that customers do not experience alarms during shipment or installation.
After properly purged of air, and the meter senses a full pipe, it may take up to 30 seconds to begin measurement.
• The meter itself does not require a quantity of flow to begin measurement. The meter just requires that the pipe is
cleared of air and filled with water. If attempting to purge the meter at low flow rates, it would likely be more difficult
and take longer.
16. When the meter starts recording positive ow, note the reading for your records.
Installation
Page 8 May 2021
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