E-Series G2 Ultrasonic Cut
PRESSURE LOSS CHART - ACCURACY CHARTS

E-Series G2® 5/8×3/4″ Ultrasonic Meter

The E-Series G2® 5/8×3/4″ Ultrasonic Meter is a revolutionary step in water metering, combining high precision and robust durability with intelligent, data-driven features. Its advanced solid-state ultrasonic technology is designed to deliver consistently accurate measurements across diverse environments, eliminating errors caused by sand, particles, or pressure fluctuations. Encased in a UV-resistant, weatherproof housing, this meter is built for resilience in outdoor and residential applications alike, making it reliable even in submerged or harsh weather conditions. With its enhanced low-flow sensitivity, the E-Series G2® is capable of detecting minimal water usage, empowering utilities and users to monitor usage accurately, conserve water, and prevent wastage. 

Engineered for ease of use, the E-Series G2® features a maintenance-free, fully integrated electronic system with a 9-digit LCD display that provides real-time data on water usage, flow rates, reverse flow, and alerts, including proactive leak detection. Flexible connectivity options, such as an in-line AMR/AMI-compatible connector and field splice installation, ensure seamless integration with utility management systems, offering versatile installation possibilities. This high-performance, tamper-proof meter is a smart solution for water management, empowering users to conserve resources and optimize operational efficiency.

Key Features

  • Leak Alert: Proactively monitors for potential leaks, providing early detection to prevent water waste and property damage.
  • Solid-State Ultrasonic Technology: Reduces measurement errors from sand, particles, and pressure variations.
  • Durable, Weatherproof Housing: UV-resistant design for dependable performance in varied environments.
  • Enhanced Low-Flow Accuracy: Detects lower flow rates than typical meters, increasing sensitivity and precision.
  • Maintenance-Free Design: Integrated electronic meter and register for easy, hassle-free operation.
  • Secure, Tamper-Proof Construction: Ensures data integrity and robust protection.
  • Clear 9-Digit LCD Display: Provides real-time water usage, flow rate, reverse flow, and alert information.
  • Flexible Connectivity: Offers in-line AMR/AMI-compatible and field splice options for versatile installations.

For detailed specifications and installation guidelines, please refer to the E-Series G2 Ultrasonic Meters 5-8 to 1 inch Product Data Sheet and the E-Series G2® Ultrasonic Meters Lead-Free Bronze Alloy, 5-8 through 8 inch User Manual

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Description

Applications

The E-Series G2® Ultrasonic Meter is designed for a variety of water applications, including potable water, reclaimed water, and irrigation. It performs well in environments with small particles, making it suitable for both residential and light commercial settings, and is UL Listed for residential fire service applications.

Operation & Performance

Using advanced ultrasonic technology, this meter measures flow accurately by calculating the time difference of ultrasonic signals traveling through the water. It displays data on water usage, flow rate, temperature, and pressure, ensuring reliable performance while reducing measurement errors caused by particles and pressure fluctuations.

Construction

Built from lead-free bronze alloy, the meter’s housing is UV-resistant, weatherproof, and tamper-proof, providing durability in diverse environments. Encapsulated electronics and a robust flow tube minimize pressure loss and enhance long-term accuracy and reliability.

Meter Installation

Designed for flexibility, the E-Series G2® can be installed horizontally or vertically and operates in fully submerged conditions. With built-in empty pipe detection, it only measures flow when the pipe is fully filled, ensuring accurate readings.

Additional information

Normal Test Flow Limits

0.08…30 gpm
(0.02…6.81 m3/hr)
Minimum Test Flow Limits

0.04 gpm
(0.009 m3/hr)
Safe Maximum Operating Condition (SMOC)

30 gpm
(6.81 m3/hr)
Typical Pressure Loss

2.6 psi @ 15 gpm
(0.18 bar @ 3.4 m3/hr)
UL Approval for Residential Fire Service Meters - File No. EX15653

NA
UL Test Flow Limits (at ±1.5% accuracy)

NA
Typical UL Pressure Loss

NA
Operating Performance

In the normal temperature range of 45…122 °F (7…50 °C), new meter consumption measurement is accurate to:
100% ±1.5% over the normal test flow limits, 100% ±3.0% for the minimum test flow limits
Storage Temperature

34…140° F (1°…60° C)
Maximum Ambient Storage (Storage for One Hour)

150° F (66° C)
Measured Fluid Temperature Range

34…140° F (1…60° C)
Humidity

0…100% condensing; meter is capable of operating in fully submerged environments
Maximum Working Pressure of Meter Housing

175 psi (12 bar)
Maximum Operating Pressure of Pressure Sensor

175 psi (12 bar)
Pressure Sensor Accuracy

±2% of full scale pressure, up to 175 psi (12 bar)
Register Type

Straight reading, permanently sealed electronic LCD; digits are 0.28 in. (7 mm) high
Register Display

• Total consumption (nine digits)
• Rate of flow
• Temperature
• Pressure (Optional: for meters ordered with integrated pressure sensor)
• Alarm and operating mode
• Firmware version
• Alarm indicators
• Unit of measure (factory programmed for gallons, cubic feet and cubic meters)
Totalization Display Resolution

• Gallons: 0.01, Cubic feet: 0.001, Cubic meters: 0.0001
Scaled/Unscaled Output

Solid-state relay and Open Collector
Max. Voltage: 30V DC
Current: 10 mA
Pulse Width: 50 ms (programmable 25…100 ms)

Applicable to meters with dual output options
Analog 4-20 mA Output

Two-wire/passive flow rate measurement
Input Voltage Range: 9…50V DC supply
Current: 4…20 mA
Max. Load Resistance (Ohms): (50 Ohms + 50 Ohms) × (Supply Voltage – 9V)

Applicable to meters with dual output options
Battery

3.6-volt lithium thionyl chloride; battery is fully encapsulated within the register housing and is not replaceable;
20-year battery life
Meter Housing

Lead-free bronze alloy
Measuring Section

Ultrasonic sensors located in the flow tube
Register Housing and Lid

Engineered polymer
Strainer*

Engineered composite
Size Designation X Lay Length

5/8 × 3/4 × 7-1/2 in.
(16 × 19 × 191 mm)

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