Indoor Installations
As a precautionary measure when working with metallic pipes,
check indoor locations for electrical continuity through the
service pipe before you remove or service a meter.
AWWA policy specifies that service pipes must not be used as
an electrical ground. Check your local codes and practices. A
permanent ground strap or metal setter must be used if electrical
grounding to water services is required in your community.
IMPORTANT
Figure 2: Electrical grounding
To prevent floor damage, close the service valve downstream from the meter before installing or removing a meter.
Special Fittings and Accessories
To accommodate meter installations, special fittings and accessories are available. Metal meter setters, re-setters, horns and
meter yokes are available for holding the service pipe in proper alignment to the E-Series Ultrasonic Plus meter and lay
length spacing. Metal setters and meter yokes can provide electrical continuity to protect meters and consumers from
electrical shocks.
Pre-Installation
Before you begin an installation, take these considerations into account:
• Inspect the piping around the E-Series Ultrasonic Plus meter for suitable conditions. The service line, valves,
connections and meter must be watertight. Repair the piping system if pipes are corroded or damaged.
• Install the meter in the pipeline in a horizontal or vertical position so that the flow arrow on the meter housing points
in the same direction as water flow. Registration should be upright and protected from damage, freezing
and tampering.
• Position the meter so it is accessible for installation, removal and reading.
• Verify that a suitable, electrical grounding wire is properly attached to the upstream and downstream pipe
connections of the meter. The grounding wire provides an alternative path for any electrical current that may exist
across the opening in the line.
• The line opening for the meter should match the lay length of the meter, allowing slight additional space for
coupling gaskets. The inlet and outlet sides of the meter should be axially aligned to the pipe.
• The installed meter must not be an obstacle or a hazard to the customer or interfere with public safety.
• DO NOT ATTEMPT TO USE ANY METER AS A LEVER OR CROWBAR TO STRAIGHTEN A MISALIGNED METER
POSITION. THIS COULD DAMAGE THE METER.
• DO NOT ATTEMPT TO INSTALL A METER INTO AN OPENING THAT IS TOO LONG BY FORCING THE PIPING INTO
PLACE WITH THE METER COUPLING NUTS. THIS WILL CAUSE SERIOUS DAMAGE TO THE THREADED ENDS OF THE
METER AND HOUSING.
• TO AVOID POTENTIAL PROBLEMS, CORRECT ANY IRREGULARITIES IN PIPE SPACING AND MISALIGNMENT BEFORE
PLACING THE METER INTO ITS POSITION.
OTE:N The meter will not measure flow when an “empty pipe” condition is experienced. An empty pipe is defined as a
condition when the flow sensors are not fully submerged.
Meter Installation
Page 5 August 2020 ESM-UM-02156-EN-02
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