昆山Battery-powered electromagnetic flowmeter

Battery-powered electromagnetic flowmeters are based on Faraday's law of electromagnetic induction, using the induced voltage generated when a conductive liquid cuts through magnetic field lines to measure volumetric flow.

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昆山High-precision electromagnetic flowmeter

Product Description

I. Product Introduction

Battery-powered electric The magnetic flowmeter operates based on Faraday's law of electromagnetic induction, measuring volumetric flow by detecting the induced voltage generated when a conductive liquid moves across magnetic field lines. The device consists of an electromagnetic flow sensor and an ultra-low-power converter, featuring a built-in, replaceable high-energy lithium battery pack that ensures continuous operation for over 6 years. Available in both integrated and split designs, the product covers a wide range of pipe diameters—from DN40 to DN800. Additionally, thanks to wireless connectivity options like 4G and NB-IoT, data can be seamlessly transmitted directly to the cloud, enabling true "zero-wire" remote monitoring.

II. Product Specifications (Typical Values, Customization Available Upon Request)

Project	Metrics
Nominal Diameter	DN40–DN1000
Measurement range	0.3–10 m/s
Accuracy Level	±0.5%
Repetitiveness	≤ ±0.16%
Dielectric conductivity	≥ 20 μS/cm
Rated pressure	1.0 MPa, 1.6 MPa, 2.5 MPa, 4.0 MPa, or custom designs
Medium temperature	–30 °C to +120 °C
Ambient temperature	–40 ℃ to +60 ℃
Power supply	3.6V lithium battery; optional dual power supply with 220VAC and 3.6V lithium battery
Signal output	RS-485/4G/NB-IoT
Protection Level	Integrated IP68; Split-type (sensor IP68), IP65 (converter)

3. Product Features
1. Ultra-long battery life: Featuring ultra-low power consumption, the battery can operate continuously for over 6 years.
2. Bidirectional Metering: Features a built-in three-accumulator system that simultaneously displays forward, reverse, and differential totalization.
3. Wireless Smart Transmission: Built-in 4G/NB-IoT module with automatic reconnection feature in case of disconnection.
4. Self-Diagnosis and Alarm: Real-time self-checks for 12 conditions, including air gap issues, abnormal conductivity, battery undervoltage, excitation coil open circuit, and more—promptly reporting any detected anomalies.
5. Low Start-Up Flow Rate (5 mm/s): Enables accurate measurement of minimal nighttime flows, allowing for prompt detection of leaks and improving water supply efficiency.
6. Multi-parameter monitoring: Simultaneously measures flow rate and pressure, providing comprehensive data support for optimizing secondary water supply systems.
7. Strong anti-interference capability: Maintains stable operation even in complex electromagnetic environments, unaffected by electromagnetic interference generated by pumping station equipment.
4. Application Scenarios
Municipal Water Services: Raw Water, Pumping Stations, DMA Zone Metering, and Network Leakage Monitoring
— No need to break the road for power; the IP68-rated device can operate continuously even when submerged in water.
Rural Centralized Water Supply / Mountain Spring Intake Project
Typical conditions: DN25–DN100 plastic pipes, 0.1–1 m/s, with a minimum winter temperature of –20 ℃.
——No mains power, no fiber optic cable; with a battery life of over 6 years, eliminating the need to trek through mountains just to replace the power source.

Industrial Park Cooling Circulating Water Trade Settlement
Typical operating conditions: DN100–DN600, ambient temperature, continuous operation.
——Reason for deployment: To facilitate trade settlement; the self-organizing network provides 2 km coverage across the entire factory area, eliminating the need for 485 wiring.