ZENNER ZSUR Stealth Ultrasonic Residential Meters Installation Manual

Product Description

ZENNER ZSUR Ultrasonic Residential Water Meters are designed for cold water applications up to 122°F.

Intended Purpose

• For the consumption measurement of drinking 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.

Product Images

Two models of ZENNER ZSUR ultrasonic residential water meters are shown: ZSUR02 and ZSUR07.

Permissible Installation Positions

Diagram illustrating permissible installation positions for the ZENNER ZSUR meters, showing various orientations relative to the pipe.

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 via NFC Interface

The following data can be directly read from the measuring instrument via the NFC (Near Field Communication) 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 Guidelines

• 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, ZSUR Ultrasonic Residential 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 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 frost-proof 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.

Display Description

The meter display provides various information:

• Segment Test Display: Shows all segments illuminated to confirm display functionality.
• Consumption Value: Displays the measured consumption. Example: 88888.8.8.8.8 with units like Gal, m³x100, or CF.
• Flow Direction Display (Forward): Indicates flow in the forward direction.
• Flow Direction Display (Return): Indicates flow in the return direction.
• 4-Digit Flowrate Display: Shows flowrate in Gpm, Cfpm, or m³. Example: 8.8.8.8.
• Alarm or Error Messages: Indicated by a warning symbol (⚠️), messages are saved in the data logger and readable via NFC.
• External Power Supply: Indicated by a lightning bolt symbol (⚡), activated when a communication module is connected via NFC.
• Battery Capacity Display: Indicated by a battery symbol (?), activated approximately 180 days before full discharge. Battery life is 12 to 15 years depending on conditions and module configuration.
• Data Transfer Display: Indicated by a satellite dish symbol (?), activated only for connected NDC modules.

Consumption Value Units

Cubic Feet (CF)

• 5/8", 3/4" and 1" sizes: 9-digit display with 3 digits after the decimal place.
• 1-1/2" and 2" sizes: 9-digit display with 2 digits after the decimal place.
• Unit of consumption display: CF

Cubic Meters (m³)

• 5/8", 3/4" and 1" sizes: 9-digit display with 4 digits after the decimal place.
• 1-1/2" and 2" sizes: 9-digit display with 3 digits after the decimal place.
• Unit of consumption display: m³

US Gallons (Gal)

• 5/8", 3/4" and 1" sizes: 9-digit display with 2 digits after the decimal place.
• 1-1/2" and 2" sizes: 9-digit display with 1 digit after the decimal place.
• Unit of consumption display: Gal

Overrun Event

In the event of an overrun, all leading zeros are displayed in the consumption display (e.g., 00000.0000). 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 as an "Alarm or error message" in the data logger with details of the date and length of exceedance.

Alarms and Error Messages

Technical Specifications

Technical diagram of ZENNER ZSUR meter showing dimensions L (Length), H (Height), B (Width), H1 (Height 1), and D (Diameter/Connection size).