Xylem OMNI sensus C2 Bedienungsanleitung
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.
Copyright
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change without notice and does not represent a commitment on the part of Sensus.
© 2021, Sensus USA, Inc., a subsidiary of Xylem, Inc. All Rights Reserved.
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
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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 specications
Category Specication
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 Specication
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.
Notication 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
Notication 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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3
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