Battery Powered Magnetic Water Meter

RBEFB-W Battery Powered Electromagnetic water meters are based on electromagnetic flow (EMF) technology and provide measurement of a wide flow range.

RBEFB Series battery-powered electromagnetic flowmeter converter is specifically designed for water resources and industries. It is widely used in the cases without power supply, such as: city water supply, sewage treatment, water conservancy, water administration and water resources industries. It can reach accuracy of 1.0, 0.5 or 0.2 when working with ordinary electromagnetic flowmeter sensors. The RBEFB Series battery-powered electromagnetic flow converter is generally equipped with a set of four lithium batteries typically lasting 3 - 6 years. Longer running life can be obtained if more battery set is used.

Micro-power 16-bit embedded processor was implemented to generate the sensor excitation circuit and manage the lithium battery power efficiently. It features full digital signal processing, measurement stability, high measurement accuracy and anti-interference capability. The converter supplies automatic bi-directional flow measurement, self-diagnosis and system fault alarm. The measurement data can be transmitted through the powerful GSM / GPRS remote management software system to achieve the flow data storage, analysis and other functions remotely.


  • Features
  • Specification
  • Model Selection
  • Applicants
  • Download

RBEFB Battery-powered Magnetic Water Meter designed for water and wastewater industry to accurately measure the water flow in closed conduits.
RBEFB Battery Electromagnetic Water Meter is special ideal for remote locations in municipal, irrigation, wastewater treatment and industrial liquid processes industries where no power connection is available and IP68 for underwater projects.

  • No moving parts for long-term measurement accuracy
  • Micro-power design, four 3.6V lithium battery, working life 3--6 years, and battery replaceable;
  • Easy to install, Self-diagnostics, easy to use;
  • Flexible operation mode to reduce power consumption and meet different needs;
  • Zero point stability
  • Short straight-pipe run requirement. Suitable for any desired installation location
  • Compact and rugged design. IP68 submersible
  • Large measurement range, DN3 to DN800, Bi-directional
  • Dynamic rate: 200:1
  • Stand alone water meter with battery lifetime for more than 6 years(depends on the time interval, easy to change the battery).
  • Billing grade with Class 1 or 2 accuracy for optional
  • Plug and play. No need for programming, no need for wiring
  • Output:Providing pulse output for easy calibration;
  • Providing RS485 communication interface, enabling wireless remote data transmission.
  • Optional GSM/GPRS wireless and turnkey data service.

RBEF-W Battery Magnetic Water Meter Specification

  • supporting meter size: DN3 ~ DN800
  • Accuracy: ± 0.2%, ± 0.5%, ±1%
  • Measurement range: 0.05 ~ 15m / s
  • Measuring medium (conductivity):> 20μs / cm
  • Medium temperature: -10 ℃ ~ 160 ℃
  • Ambient temperature: -20 ℃ ~ 50 ℃
  • Humidity: ≤95% (relative humidity)
  • Protection grade: IP65, IP67, IP68
  • Power Supply: 3.6V built-in lithium battery, continuous working time 3--6 years
  • Display: large-screen LCD device for displaying instantaneous flow velocity, forward / reverse cumulative total and alarms
  • Output signals: pulse output 0.0001-10m3/p, frequency output 1-5000Hz (passive optocoupler output)
  • Recording data: total accumulated flow
  • System alarms: Fluid empty pipe detection alarm, excitation current detection alarm, battery capacity detection alarm;
  • Scaled output signal: pulse per unit volume flow
  • Communication: RS485, GSM / GPRS / CDMA wireless data transmitting
Model Selection

RBEF-W Battery Powered Magnetic Water meter Model Selection


Normal Diameter(mm)

DN XX DN3-800

Flange Rating

6 0.6MPa  DN700-3000
10 1.0MPa  DN200-1400
16 1.6MPa  DN15-600
20 ANSI Class 150 DN15-1400
40 4.0MPa DN15-150
50 ANSI Class 300 DN15-1400

Power supply

D Battery +External Power
B Battery  (Only for GPRS/RS485 Powerd )

Electrode Material

1 316L Stainless Steel
3 Hastelloy C-22
4 Hastelloy B-10
5 Titanium
6 Tantalum
8 Tungsten Coated Stainless Steel

Lining Material

1 Neoprene(Hard Rubber) 3000
2 PTFE 1000
3 Polyurethane 300
4 PFA 250
5 Tefzel(F46) 250
6 PFA with Wire Net 80250
7 Tefzel(F46) with Wire Net 80250

Grounding and Lining Protection

0 Flanged Ground 153000
1 Earth Ring 15250
2 Ground Electrode 503000
3 Inlet Protection Ring 503000

Max. Process Temperature

A 80 All linings
B 120 Neoprene/PTFE/PFA/Tefzel

Environmental Protection Class

1 IP68


1 Compact
2 Remote(with 10m Cable)

Output and Input

N No OutputStandard
RB8 RS485 with 3.6V Battery powered, IP68
RP8 RS485, 12-24V power supply, IP68
GC8 GPRS-Compact with 3.6V Battery powered, IP68
GR8 GPRS-Remote with 3.6V Battery powered, IP68
GR5 GPRS and RS485 two-way communication and 3.5V battery and DC12-24V two power supply, IP65
GD5 GPRS and 3.5V battery and DC12-24V two power supply, IP65
P Pulse with 12-24VDC or External battery, IP68
H 4-20mA with 12-24VDC or External battery,IP68
AH 4-20mA+Hart (IP68),12-24VDC or External battery, IP68


02 0.2
05 0.5

10. Calibration Specification

1 3 point, 1% accuracy
2 Special

11.Flange Type

3 Others, pls clarify

Battery Electromagnetic Water Meter Applications:

  • Water supply
  • Smart Water Metering
  • Accurate water metering for water consumption and revenue generation
  • Leakage Detection
  • Water distribution network monitoring, Utilities, Waterworks,
  • Water abstraction, Water revenue metering
  • Groundwater Monitoring & Management Solutions
  • Water supply, District heating/cooling water
  • Waterworks, industrial and Agricultural Irrigation application, Irrigation water metering
  • Chemical & Steel Industry; Pulp & Paper;
  • HVAC Facility Management;
  • Water meters of Building Automation;Water metering in remote locations
  • Food & Beverage;
  • Power & Thermal Plant; Pump performance monitoring
  • Wastewater and raw water metering
  • Pharmaceutical & Semiconductor;
  • Etc..

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