ZENNER ZSU Stealth Ultrasonic Meters Instruction Manual

: September 9, 2024
: ZENNER

Table of Contents

ZSU Stealth Ultrasonic Meters
Specifications:
Product Usage Instructions:
Permissible Installation Positions:
Display Description:
Alarms and Error Messages:
- FAQ:
What should I do if I encounter an error code on the
How do I ensure proper installation of the meter?

ZSU Stealth Ultrasonic Meters

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Specifications:

Model: ZSU02, ZSU03, ZSU04, ZSU06, ZSU08,
ZSU10, ZSU12
Nominal Diameter (Inches): 2, 3, 4, 6, 8, 10,
12
Overall Length (L): 10″, 12″, 14″, 18″, 20″,
17 3/4″, 19 11/16″
Height (H): 5 5/8″, 7 1/2″, 8 3/4″, 10 5/8″,
12 5/8″, 15 3/16″, 18 1/8″
Height (H1): 2″, 3 5/16″, 4 3/32″, 5 5/16″, 6
5/16″, 7 5/8″, 9 1/16″
Flange Diameter (D): 6″, 7 1/2″, 9″, 11″, 13
1/2″, 16″, 19″
Bolt Circle Diameter (D1): 4 1/2″, 6″, 7 1/2″,
9 1/2″, 11 3/4″, 14 1/4″, 17″
Number of Bolts per Flange: 2, 4, 8, 8, 8, 12,
12
Bolt Size (Inches): 5/8, 5/8, 5/8, 3/4, 3/4,
7/8, 7/8
Weight Approx. (Pounds): 18, 36, 48, 61, 94,
116, 170

Product Usage Instructions:

Permissible Installation Positions:

Ensure the indicator on the meter housing is pointed toward the
customer’s side of the service line during installation. Use new
bolts and gaskets for secure installation.

Display Description:

The display provides information such as segment test display
and consumption value.

Alarms and Error Messages:

The meter may display various error codes and messages including
leakage, installed backwards, battery warning, meter oversized,
meter undersized, burst, meter dry, frost warning, reverse flow,
meter blocked, temperature out of range, overload, device error,
and air bubbles in the line.

FAQ:

What should I do if I encounter an error code on the

display?

If you see an error code on the display such as SF01, SF02,
SF03, Err7, Info Code, or Battery Symbol, refer to the manual to
identify the issue and take appropriate action.

How do I ensure proper installation of the meter?

Make sure the indicator on the meter housing faces the
customer’s side of the service line and use new bolts and gaskets
for installation.

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Product Description ZENNER ZSU Ultrasonic Bulk Water Meters are designed for cold water applications up to 122° F. Intended purpose · For the consumption measurement of drink-
ing water up to 122°F. · For the consumption measurement of non-
potable water up to 122°F. Comment This installation manual is intended for qualified meter installers only. Basic installation steps are therefore not described. In order to ensure a proper flow measurement, the meter must be completely filled with water at all times.

Permissible installation positions

ZENNER USA, Inc. 15280 Addison Rd #240, Addison, TX 75001 Phone 972-386-6611, Fax 972-386-1814 www.zennerusa.com

Rev. E Page 1 of 5

Activating the Meter Upon delivery, the display of the meter will arrive in “sleep mode”. To activate the meter, simply fill the meter with water for ten seconds. This will move the meter into active reading mode. During the installation, all air must be ventilated from the meter and the meter must be completely filled with water in order for activation to be achieved. Once the meter has been activated, an automatic display check takes place (segment test). The segment test is represented by three flashes of all segments on the display indicator and is repeated every 60 seconds during operation. Readout options of the ZSU meter via the NFC (Near Field Communication) Interface Cable The following data can be directly read from the measuring instrument via the NFC interface, e.g. with NFC-capable smartphone: · Meter ID (serial number) · Current consumption value or total volume
in the case of an overrun · Up to 15 previous month’s values · Software version · Alarms or error messages The meter can be retrofitted with NDC modules, or ordered with a factory-fitted module.

Meter Installation · To achieve optimal measurement results, (3)
times the pipe diameter should be allowed on the inlet and (2) times the pipe diameter should be allowed on the outlet side of the meter. However, ZSU Ultrasonic Meters are designed to be installed without straight sections in front and after the meter and still meet AWWA accuracy standards. · Clean and flush the service line thoroughly on the inlet side of the meter before installing.
· The pipe cross section should not be reduced directly in front of and behind the meter.
· Valves or other flow regulators should be installed, where possible, behind the meter.
· The meter should be installed, where possible, at the deepest point of the pipe installation insuring air is not entrapped within the meter and the meter body is always completely water filled.
· During installation, ensure the flow arrow
indicator on the meter housing is pointed toward the customer’s side of the service line. Install using new bolts and gaskets.
· To insure unrestricted flow of water through the meter, use the proper size and type of gaskets. Connections should only be sufficiently tight to seal; do not over-tighten. Flange gaskets must not extend into the pipe.
· If necessary, the meter should be protected by a strainer. This will keep foreign matter, such as stones or debris, from entering the meter and potentially cause damage.
· The meter is designed for use in a frostproof location with ambient temperature not to exceed +130°F and with water temperatures not to exceed +122°F .
· To prevent damage during the installation process, ensure that the meter is slowly filled with water.

ZENNER USA, Inc. 15280 Addison Rd #240, Addison, TX 75001 Phone 972-386-6611, Fax 972-386-1814 www.zennerusa.com

Rev. E Page 2 of 5

Display description

Segment test display

Consumption value

Flow direction display in forward flow direction Flow direction display in return flow direction 4-digit flowrate display with automatic point shifting in Gpm, Cfpm or m³/h Alarm or error messages (are saved in the data logger and can be read out via the NFC interface) External power supply: Symbol is activated once a communication module is connected via the NFC interface Battery capacity display: Symbol is activated aprox. 180 days prior to fully discharged battery. The battery capacity is 12 to a maximum of 15 years (depending on the ambient conditions as well as use and configuration of a connected NDC module) Data transfer display: Symbol is only activated for the connected NDC module

Consumption value Cubic Feet · 2″ to 3″, 9-digit, with 2 digits after the deci-
mal place. · 4″ to 8″, 9-digit, with 1 digit after the deci-
mal place. · 10″ to 12″, 9-digit, with no decimal place. · Unit of consumption display: CF Consumption value Cubic Meters · 2″ to 4″, 9-digit, with 3 digits after the deci-
mal place. · 6″ to 10″, 9-digit, with 2 digits after the deci-
mal place. · 12″, 9-digit, with 1 digit after the decimal
place. · Unit of consumption display: m³ Consumption value US Gallons · 2″ to 4″, 9-digit, with 1 digit after the deci-
mal place. · 6″ to 8″, 9-digit, with no decimal place. · 10″ to 12″, 9-digit, with X10 multi-plier. The
X10 multi-plier will be displayed. · Unit of consumption display: Gal Overrun event In the event of an overrun, all leading zeros are displayed in the consumption display (display 000000.000, 0000000.00, 00000000.0 or 000000000). The actual consumption is fully recorded in the internal memory and can be retrieved via the NFC interface. Caution In the case of exceeding the max. overload flowrate (Q4m), the flowrate display is deactivated to protect the measuring instrument (set to zero). While the flowrate is exceeded, the consumption progress is not registered. The exceeded overload is stored a an “Alarm or error message” in the data logger with details of the date and length of exceedance.

ZENNER USA, Inc. 15280 Addison Rd #240, Addison, TX 75001 Phone 972-386-6611, Fax 972-386-1814 www.zennerusa.com

Rev. E Page 3 of 5

Alarms and Error Messages

Error Code on Display SF01 SF02 SF03, Err7, Info Code, or Battery Symbol

Description Leakage Installed backwards Battery warning

SF04

Meter oversized

SF05 or `FOR’

Meter undersized

SF06

Burst

SF07, `DRY’, or Info Code Meter dry