ESM-UM-03099-EN-02
METER OPERATING MODES
The E-Series Ultrasonic meter automatically moves through storage and transition mode into active mode based on
water flow:
• Storage Mode
E-Series Ultrasonic meters are delivered in storage mode so that a meter alarm is not triggered In storage mode, the meter
LCD displays the empty pipe icon
on the consumption screen, an empty pipe code on the alarm screen (but no alarm
code is sent to the endpoint) and
– – – F
(or
– – – C
) on the temperature screen
• Transition Mode
When the meter senses water in the pipe, it moves into transition mode In transition mode, the meter displays water
consumption and sends a reading to the endpoint, if connected After sensing a full pipe for 24 hours, the meter
transitions to active mode
OTE:
N
If a meter senses an empty pipe in transition mode, the meter goes back into storage mode until water triggers
the process to start again
• Active Mode
Meter is operating normally If the meter is in active mode and detects an empty pipe, water temperature displays
ErrF
(or
ErrC
)
For more information see
"Alarm and Operating Mode Screen" on page 11
INSTALLATION
Outdoor Installations
When installed outdoors in a meter box, the E-Series Ultrasonic meter should have a 2…3 inch clearance to avoid damage or
strain to the service piping or meter and to accommodate any settling that may occur after installation
Make sure the service pipe in the meter box is properly bedded so that it is not axially misaligned and that it lays evenly on
the bottom of the pipe trench Place the backfill material covering the pipe appropriately to maintain pipe alignment in the
event of eventual ground shifts This will prevent damage to the pipe
Protect the service lines and the water meter from freezing The earth covering the service line must be adequate to prevent
frost penetration Due to the smaller volume of water, service line pipes will freeze sooner than the main distribution line
Excavate the meter box pit below the frost line Even though the meter itself may be positioned above the frost line, the
warmer air rising from the earth below the frost line will reduce the possibility of freezing
Indoor Installations
As a precautionary measure when working with metallic pipes, check indoor settings
for electrical continuity through the service pipe before you remove or service a meter
American Water Works Association (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
To prevent floor damage, close the valve downstream from the meter before installing or removing a meter
•
DO NOT ATTEMPT TO USE ANY METER AS A LEVER OR CROWBAR TO STRAIGHTEN A MISALIGNED METER
POSITION. THIS COULD DAMAGE THE METER.
•
TO AVOID POTENTIAL PROBLEMS, CORRECT ANY IRREGULARITIES IN PIPE SPACING AND MISALIGNMENT BEFORE
PLACING THE METER INTO ITS POSITION.
Meter Operating Modes
Page 6
May 2021
