Ceramic Liner Electromagnetic Flow Meter

The RBEF Ceramic Electromagnetic flow meter(Flange and Wafer type ) have ceramic liners in place of the typical elastomer liners commonly used in magnetic flow meters. Ceramic liners can tolerate higher temperatures and pressures than most other liner materials. Other liners can also release plasticisers and drying agents into the product in a process referred to as leaching. The electromagnetic flowmeter (EMF) with a high-tech ceramic measuring tube for very aggressive and abrasive fluids.

The ceramic measuring tubes feature an outstanding combination of material properties including surface hardness and quality, mechanical stability and resistance to corrosion and temperature change. Benefits for the operator include ultimate accuracy and long-term stability as well as vacuum resistance and diffusion resistance. The versatile profile combined with the high accuracy, these flow meters are used in all sectors of industry.

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

Features

RBEF Ceramic Electromagnetic Flow meter Features

Flange(DN15-600) and Wafer type(DN15-200)
Tube with high-tech ceramic material, fulfilling fully vacuum-resistant.
Special tube design with conical parts, optimizing the flow profile.
The smooth and pore free ceramic tube construction does not leak.
Insensitive for temperature shocks, exceptional long-term stability and accuracy.
Highly aggressive and abrasive fluids for slurry applications.
Stable measurement in noisy applications.
Improved safety with absolute leak tight design making it highly suitable for hygienic applications.
Excellent chemical and abrasion resistance, fulfilling requirements of the chemical industry.
Diameter range of DN15 up to DN200, DN15...100: PN 40, DN150...600: PN16 or PN 10.

Specification

RBEF Ceramic Electromagnetic Flow meter Specification:

No moving parts;
Fluid: for chemicals, for wastewater, for conductive liquids, for slurry, for abrasive fluids, for aggressive media
Mounting: Flange or Wafer
Material: Ceramic liner and Electrode,

Other characteristics: compact and remote type
Protection level: IP65 or IP67
Domain: Highly aggressive and abrasive fluids,

Process pressure: 9.8 bar (142.14 psi)
Process temperature: Min.: -40 °C (-40 °F); Max.: 180 °C (356 °F)
Flow velocity: Min.: 0.25 m/s (0.82 ft/s) Max.: 12 m/s (39.37 ft/s)

Model Selection

RBEF Ceramic Electromagnetic Flow meter Model Selection:

RBEF-

DN

-

-

-

-

-

-

-

-

-

-

-

-

-

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

1 Nominal Diameter(mm)/ [inches] ⁽¹⁾

0015 [½”]

0100 [4”]

0450 [18”]

1400 [56”]

0020 [¾”]

0125 [5”]

0500 [20”]

1600

0025 [1”]

0150 [6”]

0600 [24”]

1800

0032 [1¼]

0200 [8”]

0700 [28”]

2000

0040 [1½]

0250 [10”]

0800 [32”]

2200

0050 [2”]

0300 [12”]

0900 [36”]

2400

0065 [2½]

0350 [14”]

1000 [40”]

2600

0080 [3”]

0400 [16”]

1200 [48”]

3000

2 Flange Rating ⁽¹⁾

02

0.25 MPa

1600 … 3000

06

0.6 MPa

700 … 3000

10

1.0 MPa

200 … 1400

16

1.6 MPa

15 … 600

20

ANSI Class 150

15 …1400

40

4.0 MPa

15 … 150

50

ANSI Class 300

15 … 1400

AA

Special

3 Electrode Material

1

316L Stainless Steel

3

Hastelloy C-22

4

Hastelloy B-10

5

Titanium

6

Tantalum

7

Platinum / Iridium Alloy

8

Tungsten Coated Stainless Steel

9

ceramic

4 Lining Material

1

Neoprene (Hard rubber)

≤ 3000

2

PTFE

≤ 1000

3

Polyurethane

≤ 300

4

PFA

≤ 250

5

Tefzel

≤ 250

6

PFA with Wire Net

80 … 250

7

Tefzel with Wire Net

80 … 250

8

Ceramic

15 … 200

5 Grounding and Lining Protection

0

Flange ground

15 … 3000

1

Earth ring

15 … 250

2

Ground electrode

50 … 3000

3

Inlet protection ring

50 … 3000

6 Max. Process Temperature

A

80°C

All Linings

B

120°C

Neoprene / PTFE / PFA / Tefzel

C

180°C

PTFE only

7 Environmental Protection Class

1

IP65

2

IP67 (Compact Type Only)

3

IP68 (Remote Type Only)

8 Explosion Proofing

1

None

2

Ex DE IIC T6

9 Configuration – sensor/transmitter

1

Compact (15 … 1000)

2-X

Remote (with Xm cable, standard: 10m)⁽²⁾

10 Power Supply

A

AC: 85 … 265 VAC / 45 … 63Hz

D

DC: 18 … 36 VDC

11 Display and Programming

2

2 line LCD display + keypad programming

3

3 line LCD display + keypad programming

12 Output and Input

0

Basic Configuration (current, pulse and contact outputs)

1

Basic Configuration + RS485(MODBUS)

2

Basic Configuration + GPRS

3

Relay

4

Hart

5

PROFIBUS-DP

13 Calibration Specification

1

3 point, 0.5% accuracy

2

3 point, 0.25% accuracy

3

Special

14 Flow Tube Configuration

Flange Type

15 … 3000

D

DIN

A

ANSI

J

JIS

2

Wafer

3

Tri-clamp

1.5 -200

O

Others(pls clarify)

4

Flange type with removable electrodes

15 … 3000

15 Flange material

C

Carbon Steel

S

304 Stainless Steel

16 Special Function

0

No

R

IR Remote

T

Power off timer

H

Cumulative hours

Q

Quantitative control

J

Relay Output

Remark:

(1) Line size selection will be inches for ANSI Class 150/300 rating selection, DIN size for all other ratings

(2) Order longer cable length separately

(3) Ceramic liner and electrodes is with wafer and flange type only

Applicants

RBEF Ceramic Electromagnetic Flow meter Applications

Master transfer meter;
Precise volumetric dosing of additivesChemical injection
For acids, alkaline, paste, slurries and many other aggressive media even with high solid contents.

In different industries:

Food & beverage
Pharmaceuticals, Biotechnology industries
Chemical Processing Industry;
Paper & Pulp;
(Waste) water;
Minerals & Mining;
Machinery

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0	No	R	IR Remote
T	Power off timer	H	Cumulative hours
Q	Quantitative control	J	Relay Output

Ceramic Liner Electromagnetic Flow Meter

Description

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