Xylem OMNI sensus C2 Manuel utilisateur

OMNI

C2, F2, R2 and T2 Meters

User Guide

WUG-10003-04

Revision history

Rev No. Date Description

Rev 01 30-SEP-2009 Initial Release

Rev 02 15-MAR-2016 Added revised drawings, minor additions and corrections

Rev 03 03-JUN-2020 Revisions for OMNI+ register.

Rev 04 21-APR-2021 Full OMNI+ release; updated SmartPoint module section.

This document, in whole or in part, (“Document”) includes confidential and proprietary

information belonging to Sensus USA Inc. and/or one of its subsidiaries or affiliates.

Unauthorized use, reproduction, disclosure, distribution, or dissemination of this

Document is strictly prohibited. No party may use, reproduce, disclose, distribute, or

disseminate this Document for any purpose without express written authorization from

Sensus USA Inc. Any use, reproduction, disclosure, distribution, or dissemination of this

Document does not transfer title to, license, or grant any patent, copyright, trademark,

or other intellectual property rights. This Document, and any copies or derivatives

thereof, must be returned immediately on demand. This Document is subject to any

applicable non-disclosure agreement(s). Information in this Document is subject to

change without notice and does not represent a commitment on the part of Sensus.

Sensus, the Sensus logo, FlexNet® and associated logos are trademarks of Sensus and

its subsidiaries and affiliates. The N-Mark is a trademark or registered trademark of NFC

Forum, Inc. in the United States and in other countries.

Sensus USA

637 Davis Drive

Morrisville, NC 27560

1-800-638-3748

www.sensus.com

Document: OMNI C2, F2, R2 and T2 Meters User Guide

Document Number: WUG-10003-04

Revision history | ii

Contents

1 OMNI™ meter overview................................................... 4

OMNI™+ register.................................................................................. 4

Alarms.................................................................................................... 4

Data logging.......................................................................................... 4

OMNI meter specifications.................................................................... 4

2 LCD display....................................................................... 6

Segment Test view.................................................................................6

Totalizer view..........................................................................................7

Flow direction indicator..........................................................................8

Notification view.....................................................................................8

Smart Mode and Normal Mode.........................................................8

Notification icons...............................................................................9

Battery icon............................................................................................ 9

Dead battery read.................................................................................. 9

3 Signal connections.......................................................... 13

Electrical connection configuration options.........................................13

4 OMNI installation............................................................ 16

5 Measuring chamber.........................................................18

Remove the measuring chamber......................................................... 19

Disassemble the measuring chamber.................................................. 19

Exchange the measuring insert............................................................ 23

6 Two-way SmartPoint modules......................................... 24

Activate two-way SmartPoint modules.................................................24

FieldLogic errors.............................................................................. 28

Enable an unused port......................................................................... 32

Change two-way SmartPoint module configuration............................ 32

Get interval data from two-way SmartPoint modules.......................... 35

View two-way SmartPoint module details............................................ 37

Deactivate a two-way SmartPoint module........................................... 40

Contents | 3

1 OMNI™ meter overview

OMNI water meters feature unrestricted sustained flow rates within their continuous

operating range. The OMNI meter's Floating Ball Technology (FBT) measuring element

operates virtually without friction or wear.

Each OMNI meter consists of two basic assemblies: the maincase and the measuring

chamber. The measuring chamber assembly includes the "floating ball" impeller and an

all electronic programmable register. The OMNI+ electronic register is a hermetically

sealed register with an electronic pickup containing no mechanical gearing.

OMNI™+ register

The OMNI+ register features a programmable totalizer registration, an optional digital

pulse signal (C2/F2/T2 only), AMR reading digits, and a resettable test totalizer.

The OMNI+ register is designed for a non-explosive atmosphere. Because the register is

hermetically sealed, it is safe for pit environments as well as above ground settings. The

tamper-proof security cover can be positioned in any of 270 degrees of rotation, with

indexing points at each of the 90-degree customary register viewing positions. The

OMNI+ register is IP68 rated to 2 m.

Alarms

The OMNI+ alarms alert you to a myriad of conditions including reverse flow, leak, high

flow, and low battery life.

You can view alarms and event on the LCD display. Alarm state is logged hourly. You

can use field tools to retrieve the alarm log. In an AMI fixed-base system, alarms and

events are transmitted over FlexNet and you can user FieldLogic™ or Device Manager

to troubleshoot and clear the alarms.

Data logging

The OMNI+ logs 180 days of hourly data.

Data is retrieved directly from the meter and not through the SmartPoint due to battery

impact and time required to retrieve.

OMNI meter specications

Category Specication

Input Power 12-24 VDC ± 10%

Output Signal Open Collector—Digital Signal

Wiring Red = + Power Supply Voltage

Green = Pulse, Switching to Ground

Black = Ground (- Power Supply Voltage)

Contact Closure Duration User selectable fixed 5, 10, 20, 50, 200, 500 ms or

dynamic with a 32 ms Minimum (at 16Hz output)¹

1 OMNI™ meter overview | 4

Category Specication

Contact Open Duration User selectable fixed 5, 10, 20, 50, 200, 500 ms or

dynamic with a 32 ms Minimum (at 16Hz output)²

Duty Cycle Approx. 50/50 ± 20% at normal flow rates

Pull-up Resistor (when required) 6000 Ohms

Pulse Cable Length 25 ft. at meter

Pulse Cable Diameter 3.6 mm

Insulation Colors Red—12 to 24 VDC (Supply)

Green—Pulse, switching to GND

Black—GND

Maximum Cable Run - Meter to Instrument 1000 ft. without a repeater

Lightning Protection Built-in lightning protection. Keep in mind that

additional lightning arrestors may be needed when

long cables are used to connect the register to

devices which are not installed in the same building

as the register. The flash of lightning is not

compatible with the standards and can have greater

energy than any test can simulate.

Note: There are two modes of pulse operation: Fixed and Dynamic.

For Fixed Rate, the Contact Open and Closure rate is set to the same minimum

duration. The meter supports settings of 5, 10, 20, 50, 200, and 500 ms Open

and Closure duration.

For Dynamic Operation, the length of the Open and Closure is based on the

number of pulses to be generated in a one second period. The minimum contact

closure duration is 32ms (16 Hz Output). A Maximum closed duration of 500ms (1

Hz Output) is supported.

¹ With lower frequencies, the duration is longer. The duty cycle is roughly 40-60%

closed/60-40% open. It depends on the frequency, and is not as important as the

contact timing.

² With lower frequencies, the duration is longer. The duty cycle is roughly 60-40%

closed/40-60% open. It depends on the frequency, and is not as important as the

contact timing.

1 OMNI™ meter overview | 5

2 LCD display

The LCD is the visual reporting mechanism for the meter.

The display contains dedicated display areas for information and icons. Multiple views

are available; use the lid to toggle through the various views. The first view available

when opening the lid is the Segment Test view. This is visible for one second and shows

all of the various display areas before flashing off.

The second view is the Totalizer view, which is the main visible view when the lid is

open. If the lid is left open, the display stays on in Totalizer view. If the lid remains open

for one hour in any view other than the Totalizer view, the display returns to the Totalizer

view. If the lid is closed and then reopened within 30 seconds, the display switches to

the next view in the sequence. If the lid is closed for more than 30 seconds, the view

resets and starts with the Segment Test view. The lid must be closed for two seconds to

advance to the next view.

The OMNI+ supports the following views:

Segment Test view

Totalizer view

Notification view (for alarms)

Flow Rate view

Totalizer Test view

Segment Test view

The Segment Test view displays all icons to ensure they are all still operational. This view

helps testers and operators troubleshoot the display to ensure parts of the display

correctly display as expected and stop displaying as expected.

The Segment Test view is always available regardless of the device type or operating

mode the device may support.

The segment test only flashes segments that have a use on the device. For example, if

the device does not support meter size, the meter size icons do not display during the

segment test for that device.

The OMNI+ does not use the meter size or radio icons. The segment test displays as

follows:

2 LCD display | 6

Totalizer view

The accumulation displays digits and decimal points. The units of measurement display

in the lower-left corner of the LCD.

The Totalizer view displays consumption values or messages, AMI/AMR digit identifier

bars, the unit of measure, the flow direction, and any notification icons that are currently

active.

The bars indicate which digits are reported . The units of measurement display in the

lower-left corner of the LCD. The OMNI+ supports five units of measure which are

displayed as:

Gallons

Cubic feet

Cubic meters

Imperial gallons

Acre feet

2 LCD display | 7

Flow direction indicator

The LCD displays a flow direction indicator at the lower right. A circle containing a "+"

represents a positive flow while a circle containing a "-" represents a negative flow. If no

circle is present, there is no flow or the flow is so minimal it cannot be detected.

Notication view

The Notification view provides more information about any alarms or events that have

been triggered. This is in addition to the bell and flag icons that display on the LCD.

The first two digits on the left in Notification view are AL, which is the indication that you

are in Notification view. The remaining six digits in that line display the alphanumeric

symbol for the alarm or event, with the most recent being the first one on the right and

moving from right to left. Only six alarms or events can display at the same time. Active

events flash.

For more information on alarms and events, see Alarms and events.

Smart Mode and Normal Mode

The OMNI+ can be configured in either Smart Mode or Normal Mode.

In Smart Mode, the register read consists of the AMI/AMR reading digits, the customer

ID, and any alarms present with a timestamp. In Normal Mode, the register read only

has the customer ID and the AMI/AMR reading digits. In Normal Mode alarm

information is still available, but only by retrieving a data log; no alarm information is

passed on to an AMI system.

The third LCD digit from the left indicates the register is configured for Normal reading

mode. A lowercase ‘n’ displays in the third digit from the left when the meter is

configured for Normal reading mode.

If the device is reporting in any other mode other than Normal mode, such as Smart

Meter mode, the third value is blank.

2 LCD display | 8

Notication icons

Two notification icons display in the upper-right corner of the LCD (in all views) when the

applicable conditions are present.

The Bell icon represents an Active event or alarm. Active events occur when the device

detects that the meter is currently in this event. As long as the meter is in this event, the

bell icon remains visible. When the event ceases, the icon is no longer visible. If the

active icon is visible, the operator can switch to Notification view to see which events are

currently set. Additionally, the utility can use field tools to extract the events for further

troubleshooting.

The Flag icon represents a recent event or alarm. Recent events indicate that an event

occurred within a predetermined time frame.

Battery icon

The OMNI LCD displays a battery icon to represent battery life. This icon displays in all

views when the battery is low or needs to be replaced.

The battery notification displays on the LCD when any of the following conditions are

triggered:

Near End of Life Alarm - A near end of life notification is triggered 9.5 years from

the date of installation or 10.5 years from the date of manufacture, whichever comes

first. This notification remains active until the end of life alarm is triggered.

End of Life Alarm - An end of life notification is triggered 10 years from date of

installation or 11 years from date of manufacture, whichever comes first. The LCD

indicates an end of life notification by flashing the battery icon in 0.5 sec intervals.

Low Battery Volts - The low battery volts notification is triggered when the battery

voltage drops due to over usage. This low voltage alarm indicates the battery will

expire soon, so the device must be replaced. The LCD indicates a low battery volts

notification by flashing the battery icon in 0.5 sec intervals.

Dead battery read

The Omni+ register contains a near field communications (NFC) interface. This interface

can be used to retrieve a last time read from a register that has failed due to a dead

battery or other reason.

The information is stored as a standard NDEF type 5 text record and can be read with

any compatible NFC reader such as a mobile phone. The information in the NFC tag is

updated every 15 minutes. Compatible phones include iPhone 7 or newer and most

advanced Android phones.

2 LCD display | 9

The NFC antenna is located around the perimeter of the LCD. The NFC tag can be read

by placing a compatible device such as a NFC enabled iPhone or Android parallel with

the register face. In addition, the device's NFC antenna must be aligned with the center

of the OMNI+ LCD. The location of the NFC antenna varies by device but is typically

found on the back of the device near the top or center. The following example is for

iPhone.

Many Android phones have the NFC function built in and the tag can be read by simply

tapping the tag. This example uses the NFC-Reader app available from the App Store

but any compatible reader program will work.

After opening the application, select Scan.

2 LCD display | 10

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