Battery Magnetic Water Meter

RBEFB-W Electromagnetic water flow meters are based on electromagnetic flow (EMF) technology and provide measurement of a wide flow range.Special for Irrigation Magmeters.

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.

Description

Principle
Features
Specification
Model Selection
Applicants
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Principle

Faraday’s law of electromagnetic induction states that an inductive voltage is generated when a conductor moves through a magnetic field. This principle is used as the basis of flow measurement in the RBEF electromagnetic flow meter. In the electromagnetic flow meter, the flowing fluid corresponds to the moving conductor as described in Faraday’s law.

U_E ∞ B * D * v

The induced voltage UE is directly proportional to magnetic field intensity (B), electrode spacing (D) and average fluid velocity (v). Since magnetic field intensity (B) and the electrode spacing (D) are constant values, induced voltage U_E is therefore directly proportional to the average flow velocity (v).

Q = (∏ * D2) / 4 * v therefore U_E ∞ Q

The equation for calculating volumetric flow rate (Q) shows that the induced voltage (UE) is linear and directly proportional to the average velocity (v). In the flowmeter transmitter, the induced voltage (UE) from the electrodes is used to calculate volumetric flow rate (Q) based upon the pipe’s internal diameter.

U_E = Induced voltage

B = Magnetic field strength

D = Electrode spacing

V = Fluid velocity

Q = Instantaneous volumetric flow rate

Magnetic flow meter working Priciple

Features

RBEFB-W 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, DN50 to DN500, DN600 to DN1200 for optional;
Dynamic rate: 200:1; 500:1 for optional;
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.

Specification

RBEF-W Battery Magnetic Water Meter Specification

supporting meter size: DN50 ~ DN500 & DN600 to DN1200 for optional
Accuracy: Class 1 & 2
Measurement range: 0.05 ~ 10m / s
Measuring medium (conductivity):> 20μs / cm
Medium temperature: -10 ℃ ~ 160 ℃
Ambient temperature: T50
Humidity: ≤95% (relative humidity)
Protection grade: 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

Data Table:

	R200				R500
Pipe size	Q1	Q2	Q3	Q4	Q1	Q2	Q3	Q4
DN50	0.315	0.504	63.00	78.75	0.126	0.202	63.00	78.75
DN65	0.500	0.800	100.00	125.00	0.200	0.320	100.00	125.00
DN80	0.800	1.280	160.00	200.000	0.320	0.512	160.00	200.00
DN100	0.800	1.280	160.00	200.000	0.320	0.512	160.00	200.00
DN125	0.800	1.280	160.00	200.000	0.320	0.512	160.00	200.00
DN150	0.800	1.280	160.00	200.000	0.320	0.512	160.00	200.00
DN200	5.000	8.000	1000.00	1250.000	2.000	3.200	1000.00	1250.00
DN250	8.000	12.800	1600.00	2000.000	3.200	5.120	1600.00	2000.00
DN300	12.50	20.000	2500.00	3125.000	5.000	8.000	2500.00	3125.00
DN400	12.50	20.000	2500.00	3125.000
DN450	12.50	20.000	2500.00	3125.000
DN500	12.50	20.000	2500.00	3125.000

Model Selection

RBEF-W Battery Magnetic Water Meter Model Selection

RBEFB-W-	DN	-		-		-		-		-		-		-		-		-		-		-		-		-
	1		2		3		4		5		6		7		8		9		10		11		12		13		14	15

1 Nominal Diameter(mm)/ [inches] ⁽¹⁾

0003[1/8”]	0050 [2”]	0300 [12”]
0006 [1/4”]	0065 [2½]	0350 [14”]
0010 [2/5”]	0080 [3”]	0400 [16”]
0015 [½”]	0100 [4”]	0450 [18”]
0020 [¾”]	0125 [5”]	0500 [20”]
0025 [1”]	0150 [6”]	0600 [24”]
0032 [1¼]	0200 [8”]	0700 [28”]
0040 [1½]	0250 [10”]	0800 [32”]

2 Flange Rating ⁽¹⁾

02	0.25 MPa	1600 … 800
06	0.6 MPa	700 … 800
10	1.0 MPa	200 … 800
16	1.6 MPa	15 … 600
20	ANSI Class 150	15 …800
40	4.0 MPa	15 … 150
50	ANSI Class 300	15 … 800
AA	Special

3 Electrode Material

1	316L Stainless Steel

4 Lining Material

1	Neoprene (Hard rubber)	≤ 3000
2	PTFE	≤ 1000
3	Ceramic	15 … 200

5 Grounding and Lining Protection

0	Flange ground	15 … 800
1	Earth ring	15 … 250
2	Ground electrode	50 … 800
3	Inlet protection ring	50 … 800

6 Max. Process Temperature

80°C

All Linings

7 Environmental Protection Class

1	IP68

8 Explosion Proofing

1	None

9 Configuration – sensor/transmitter

1	Compact (15 … 1200)
2	Remote (with 10m cable)⁽²⁾

10 Power Supply

B	Battery
D	DC: 18 … 36 VDC

11 Display and Programming

2	2 line LCD display + keypad programming

12 Output and Input

0	RS485(Battery) +Pulse (External)
2	GPRS (Battery)

13 Calibration Specification

1	Class 1
2	Class 2

14 Flow Turndown

1	R200
2	R500

15 Flow Tube Configuration

1	Flange Type	15 … 800
D	DIN
A	ANSI
O	Others(pls clarify)
2	Flange type with removable electrodes	15 … 800
3	Flange +Body material
C	Carbon Steel
S	304 Stainless Steel

Applicants

Battery Electromagnetic Water Meter Applications:

Smart Water Metering, water system
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;
Water treatment plants;
Cooling tower & boiler applications
Greenhouse operations as well as field Ag systems
Waterworks, industrial and Agricultural automation 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..

Download

Catalog - Battery Magnetic Water Meter

Manual - Battery Electromagnetic Water Meter

Other files - Battery Emag Water Meter

Battery Magnetic Water Meter

Description

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