RBEFB battery powered electromagnetic flow meter is designed specifically for the water industry to meet the city's water supply to ensure the accurate calculation, the scene is widely used in places without power supply, such as urban water supply, sewage treatment, water conservancy and other industries.
Battery-powered electromagnetic flow meter specially designed sensor excitation system, and high-performance lithium battery-powered systems, and uses 16-bit AMD embedded processor power, with all-digital signal processing, measurement stability, high measurement accuracy, anti - Interference ability, and other features, automatic bi-directional flow measurement, on-site instantaneous flow of positive and negative cumulative total to show that self-diagnosis alarm FAULT Far GSM wireless data functions, the user through the powerful GSM / GPRS remote management software system can flow Far total wireless data storage functions.
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.
UE ∞ 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 UE is therefore directly proportional to the average flow velocity (v).
Q = (∏ * D2) / 4 * v therefore UE ∞ 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.
UE = Induced voltage
B = Magnetic field strength
D = Electrode spacing
V = Fluid velocity
Q = Instantaneous volumetric flow rate
RBEFB Battery Emag Flow Meter Features:
RBEFB Battery Emag Flow Meter Technical parameters
|
Diameter |
DN10-DN1200 DN150- DN3000 (Also optional plug-in battery-powered electromagnetic flow meter) |
|
Pressure |
0.6～4.0Mpa(Special pressure customizable) |
|
Accuracy |
±0.5%、±1.0% |
|
Measuring range |
0 ~±12m / s |
|
Media Measurement (conductivity) |
> 20μs/cm |
|
medium temperature |
-10 ℃ ~ 90 ℃, ≤180℃(Remote type) |
|
ambient temperature |
-40 ℃ ~ 65 ℃ |
|
power supply |
3.6V/DC built-in lithium battery-powered, continuous working hours, more than 6 years |
|
Electrode materials |
316L stainless steel, HC, HB, titanium, tantalum, platinum / iridium alloy |
|
lining materials |
poly chloroprene rubber, polyurethane rubber, PTFE, F46, PFA |
|
Connections |
flange type, plug-in, clip pattern |
|
Structure in the form of |
a body divided body |
|
Level of protection |
IP68 |
|
Display |
LCD large-screen liquid crystal display instantaneous flow of positive / reverse the cumulative total and prompt warning |
|
Output |
Local display(optional pressure display): 1. GPRS, RS485 can be powered by battery 2. 4-20mA, Pulse and 4-20mA+Hart is powered by 12-30VDC |
|
Means of communication |
GPRS(compact and remote type), GSM, Mobus, Hart |
Appearance and size of the installationTable
|
Diameter |
Pressure |
Dimension(mm) |
Weights |
Remark |
||||
|
（mm） |
MPa |
a |
b |
C |
d |
kgs |
|
|
|
25 |
4.0 |
200 |
146 |
121 |
115 |
5.5 |
||
|
32 |
200 |
161 |
139 |
140 |
6.5 |
|||
|
40 |
200 |
161 |
139 |
150 |
6.5 |
|||
|
50 |
200 |
199 |
160 |
165 |
7.5 |
|||
|
65 |
200 |
209 |
173 |
185 |
12 |
|||
|
80 |
200 |
216 |
173 |
200 |
12 |
|||
|
100 |
1.6 |
250 |
267 |
233 |
220 |
14 |
||
|
125 |
250 |
278 |
233 |
250 |
19 |
|||
|
150 |
300 |
308 |
257 |
285 |
22 |
|||
|
200 |
1.0/1.6 |
350 |
366 |
291 |
340 |
45 |
||
|
250 |
400 |
418 |
331 |
395 |
65 |
|||
|
300 |
500 |
481 |
381 |
445 |
95 |
|||
|
350 |
500 |
529 |
428 |
505 |
135 |
|||
|
400 |
600 |
587 |
483 |
565 |
170 |
|||
|
450 |
600 |
620 |
533 |
615 |
210 |
|||
|
500 |
600 |
675 |
585 |
670 |
230 |
|||
|
600 |
600 |
790 |
685 |
780 |
255 |
|||
|
700 |
700 |
900 |
800 |
895 |
315 |
|||
|
800 |
800 |
1015 |
905 |
1015 |
335 |
|||
|
900 |
900 |
1115 |
1002 |
1115 |
435 |
|||
|
1000 |
1000 |
1230 |
1110 |
1230 |
595 |
|||
|
1200 |
1200 |
1420 |
1295 |
1405 |
720 |
|||
Battery Working Time
Table 4.1.Corresponding Table of Battery life and Interval Measurement Time
(Excitation Mode 1)
|
Cycle Measuring Time |
50mA Excitation Use Time |
20mA Excitation Use Time |
|
30S |
120 months |
200 months |
|
15S |
60 months |
100 months |
|
14S |
56 months |
93 months |
|
13S |
52 months |
86 months |
|
12S |
48 months |
79 months |
|
11S |
44 months |
73 months |
|
10S |
40 months |
66 months |
|
9S |
36 months |
59 months |
|
8S |
32 months |
53 months |
|
7S |
28 months |
46 months |
|
6S |
24 months |
39 months |
|
5S |
20 months |
33 months |
|
4S |
16 months |
26 months |
|
3S |
12 months |
19 months |
Table 2 Battery Life Coefficient Corresponding Excitation Mode
|
Excitation Mode |
Mode 1 |
Mode 2 |
Mode 3 |
Mode 4 |
|
Battery Life Coefficient |
1.0 |
0.85 |
0.75 |
0.60 |
When the sensor has large diameter, the corresponding excitation cycle is long (see excitation mode parameter), therefore there is more power consumption.
| RBEFB Battery Powered Magnetic Flowmeter | |||||||||||||||
| RBEFB | X | X | X | X | X | X | X | X | X | X | |||||
| Normal Diameter(mm) | |||||||||||||||
| DN XX | DN10-1200 | ||||||||||||||
| 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 80～250 | ||||||||||||||
| 7 | Tefzel(F46) with Wire Net 80～250 | ||||||||||||||
| Grounding and Lining Protection | |||||||||||||||
| 0 | Flanged Ground 15～3000 | ||||||||||||||
| 1 | Earth Ring 15～250 | ||||||||||||||
| 2 | Ground Electrode 50～3000 | ||||||||||||||
| 3 | Inlet Protection Ring 50～3000 | ||||||||||||||
| Max. Process Temperature | |||||||||||||||
| A | 80℃ | All linings | |||||||||||||
| B | 120℃ | Neoprene/PTFE/PFA/Tefzel | |||||||||||||
| Environmental Protection Class | |||||||||||||||
| 1 | IP68 | ||||||||||||||
| Configuration-Sensor/Transmitter | |||||||||||||||
| 1 | Compact | ||||||||||||||
| 2 | Remote(with 10m Cable) | ||||||||||||||
| Output and Input | |||||||||||||||
| N | No output （Standard） | ||||||||||||||
| 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 | ||||||||||||||
| Function selection | |||||||||||||||
| N | No | ||||||||||||||
| P | with pressure P with Pressure |
||||||||||||||
| 10. Calibration Specification | |||||||||||||||
| 1 | 3 point, 1% accuracy | ||||||||||||||
| 2 | Special | ||||||||||||||
| 11.Flange Type | |||||||||||||||
| 1 | DIN | ||||||||||||||
| 2 | ANSI | ||||||||||||||
| 3 | Others, pls clarify | ||||||||||||||
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