Wall Mount

Ultrasonic Flowmeters

EF40 Flow and Energy Metering

Clamp On Ultrasonic Measurement

Enduro EF40 Flow and Energy meter is the newest among Spire’s solutions for institutional utility metering. Cutting-edge technologies such as advanced transducer design, low voltage transmission, digital signal processing, and self-adaptation, improve performance. Its proprietary tracking mechanism analyzes the quality of the received signal and automatically tunes the meter to its optimized condition for accurate flow and energy measurement. Fuel oil, coolant, or other non conductive, harsh fluids are not a problem. Clamp on ultrasonic flow technology is installed without breaking pipes or interrupting service- ready to go to work the day you receive. Heating and cooling management and billing, simplified. Click on the “Your Application” tab to tell us where you need to measure today!

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  • Energy Measurement per standard OIML R75/EN1434
  • 302o F maximum process temperature
  • No moving parts
  • Pipe Diameters ¾” to 120”

Applications

Wall-mount Ultrasonic Flowmeter – EF40

A member of the EnduroFlow™ Series, the EF40 Ultrasonic Flowmeter is the first member of the 4th generation ultrasonic flow meters from Spire Metering. Compared with its predecessors, the 4th generation flowmeters feature advanced multi-frequency flow measurement technology, thus, offering wider pipe size coverage, better accuracy and richer features.

The EF40 ultrasonic flowmeter is designed to be installed at a fixed location for long-term flow measurement on a closed pipe, carrying pure liquids or liquids with some suspended particles. EF40 can be equipped with clamp-on or wetted (insertion or flow-cell) type transducers to meet various application challenges.

Signal Quality Tracking

EF40 flowmeter utilizes cutting-edgetechnologies such as advanced transducer design, low voltage transmission, digital signal processing, self adaptation, and more, to achieve high performance. Its proprietary quality tracking mechanism analyzes the quality of the received signal and automatically tunes the meter system to its optimized condition. This mechanism leads the system to be easily adaptable to pipe material variations and liquid property changes.

Multi-frequency

EF40 main unit can be programmed to operate at 0.5MHz, 1MHz or 2MHz frequency. Together with transducers of compatible frequency, EF40 is able to measure flow on pipes from DN20 (3/4”) up toDN3000 (120”) with various pipe materials.

Transducer Pairing and Wetted Calibration

As QUALITY is of crucial importance, all transducers are carefully paired, and all flowmeters are wet-calibrated on the flow loop in the factory to further ensure the system accuracy and reliability.

Specifications

Flow Velocity ± 10 m/s (± 32 ft/s). Bi-directional
Accuracy ±1% of reading ±0.008m/s (±0.03ft/s) in velocity*
Repeatability 0.2%
Response Time 3s. Configurable between 3s and 99s
Display/Keypad LCD with backlight. 2 x 20 letters. 4 x 4 tactile-feedback membrane keypad. Displays instantaneous flow rate, flow total (positive, negative and net), velocity, time, temperature, energy, analog outputs/input
Units English (U.S.) or metric
Parameters Measured Volumetric flow rate, total flow, velocity, analog inputs, temperature, energy rate, energy total
Totalizers Positive totalizer, negative totalizer, net totalizer, daily totalizer, monthly totalizer, yearly totalizer, manual totalizer, energy totalizer
Security Keypad can be locked with password
Current Output 0/4-20mA isolated output for flowrate, velocity or sound speed. Impedance 0-1k. Accuracy 0.1%
Digital Output Optically isolated OCT (Open Collector Transistor) output. Up to 0.5A load. Can be programmed as:
Pulse signal for flow totalization
ON/OFF signal for special event such as overflow, no flow, reverse flow, leakage alarming, and more
START/STOP signal for batch control Can be used to drive pulse counter, external relay, alarm, PLC counter
Relay Output 1A@125VAC or 2A@30VDC. Can be programmed as:
Pulse signal for flow totalization
ON/OFF signal for special event such as overflow, no flow, reverse flow, leakage alarming, and more
START/STOP signal for batch control Can be used to drive pulse counter, external relay, alarm, PLC counter, or, to control pump, valve, light
Sound Alarm One sound alarm, programmable to specific event such as overflow, no flow, reverse flow, leakage alarm
Inputs One 4-20mA input for temperature, pressure or liquid level transmitter Two temperature channels for accommodating two PT100 4-wire temperature sensors. This function is only available upon request
Recording Automatically records the daily total of the last 64 days, the monthly total of the last 64 months and the yearly total of the last 5 years
Communication Interface Isolated RS-485 with power surge protection. Supports the MODBUS protocol Optional RF/GPRS module for wireless networking, remote monitoring and remote control Optional BACnet/MSTP adapter for BMS
Software Optional StufManager PC software for real-time data acquisition and
Telemetry** uGalaxy_GPRS wireless telemetry systems are available upon request
Enclosure Protection IP65
Dimensions 280mm x 220mm x 90mm (11” x 8.66” x 3.54”)
Features Weather-proof Aluminum, power coded
Weight 3kg (6.62lbs)
Environment Temp 60°C (140°F)
Power sources 12-24 VDC, 90-260 VAC 50/60 Hz <2W @12VDC
* Under reference condition and velocity should be above 0.5ft/s. Flowrate is calculated by multiplying velocity with the inner cross-section area of the pipe. ** For wireless telemetry system solution, please contact solutions@spiremt.com.

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