Selection of battery powered electromagnetic flowmeter

NegotiableUpdate on 08/04

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The battery powered electromagnetic flowmeter is designed specifically for the water industry to ensure accurate water fee calculation for urban water supply. It is widely used in on-site areas without power supply, such as urban water supply, sewage treatment, water conservancy engineering, water administration, and water resources industries. Characteristics of battery powered electromagnetic flowmeter:

Product Details

Characteristics of battery powered electromagnetic flowmeter:

All digital processing, strong anti-interference ability, reliable measurement, high accuracy, and a flow measurement range of up to 150:1
Ultra low EMI switching power supply, suitable for a wide range of power supply voltage changes, with good EMI resistance performance.
Adopting a 16 bit embedded microprocessor, it has fast computing speed, high accuracy, programmable low-frequency rectangular wave excitation, improved stability of flow measurement, and low power consumption.
Using SMD devices and surface mount technology, the circuit has high reliability.
There are no movable parts or flow blocking components inside the pipeline, and there is almost no additional pressure loss during measurement.
On site, the range can be modified online according to the actual needs of the user.
The measurement results are independent of physical parameters such as flow velocity distribution, fluid pressure, temperature, density, viscosity, etc.
High definition backlit LCD display, fully Chinese menu operation, easy to use, simple to operate, easy to learn and understand.
It has digital communication signal outputs such as RS485, RS232, Hart, and Modbus. (Optional)
It has self checking and self judging functions.
Hourly total volume recording function, recording the total flow volume in hours, suitable for time-sharing measurement system (optional)
There are three integrators inside that can display the forward cumulative amount, reverse cumulative amount, and difference cumulative amount respectively. There is also a non power outage timer inside that can record 16 power outage times. (Optional)
Infrared handheld operator, 115KHZ communication speed, all functions of long-distance non-contact operation converter (optional)

Selection Table for Battery Powered Electromagnetic Flowmeters:

Specification and parameter table of battery powered electromagnetic flowmeter:

Nominal diameter (mm) (Special specifications can be customized)	Pipeline type: DN10 to DN3000
	Insertion type: DN200~DN3000
Flow direction:	Positive, negative, net traffic
Range ratio:	150：1
Repetitive error:	± 0.1% of the measured value
Accuracy level:	Pipeline type: 0.5 level, 1.0 level
Temperature of the tested medium:	Ordinary rubber lining: -20 to+60 ℃
	High temperature rubber lining: -20 to+90 ℃
	PTFE lining: -30 to+100 ℃
	High temperature PTFE lining: -20 to+180 ℃
Rated working pressure: (High voltage can be customized)	DN6－DN80：≤1.6MPa
	DN100－DN250：≤1.0MPa
	DN300－DN1200：≤0.6MPa
Flow rate range:	0.1－15m/s
Conductivity range:	The conductivity of the measured fluid is ≥ 5 μ s/cm
Current output:	load resistance	0～10mA：0～1.5kΩ
		4～20mA：0～750 kΩ
Digital frequency output:	The upper limit of the output frequency can be set within 1-5000Hz with a transistor collector open circuit bidirectional output with photoelectric isolation. When the external power supply is ≤ 35V and conducting, the maximum current at the collector is 250mA
Power supply:	AC220V, DC24V or 3.6V batteries
Require the length of the straight pipe section	Upstream ≥ 5DN, downstream ≥ 2DN
Connection method:	The flowmeter and piping are connected by flanges, and the flange connection size should comply with the provisions of GB11988
Explosion proof grade:	mdIIBT4
Protection level:	IP65， Specially customized up to IP68
Environmental temperature:	－25～＋60℃
Relative temperature:	5%～95%
Total power consumption:	Less than 20W

Battery powered electromagnetic flowmeter caliber flow comparison table:

Nominal diameter (mm)	Measurable flow range (m3/h)	Effective measurement flow range (m3/h)	Nominal diameter (mm)	Measurable flow range (m3/h)	Effective measurement flow range (m3/h)
4	0.0135～0.4522	0.0135～0.4522	250	8.8313～2119	52.9875～1766
6	0.0305～1.0173	0.0305～1.0173	300	12.717～3052	76.302～2543
8	0.0543～1.8086	0.0543～1.8086	350	17.31～4154	103.86～3461
10	0.0142～3.3912	0.0848～2.826	400	22.61～5425	135.65～4521
15	0.0318～7.6302	0.1908～6.3585	450	28.62～6867	171.68～5722
20	0.0566～13.5648	0.3392～11.304	500	35.33～8478	211.95～7065
25	0.0883～21.195	0.5298～17.6625	600	50.87～12208	305.2～10173
32	0.1447～34.7258	0.8682～29.9382	700	69.24～16616	415.4～13847
40	0.2261～54.2592	1.3565～45.216	800	90.44～21703	542.6～18086
50	0.3533～84.78	2.1195～70.65	900	114.46～27468	686.7～22890
65	0.5970～143.28	3.5819～119.39	1000	141.3～33912	847.8～28260
80	0.9044～217.03	5.4259～180.86	1200	203.5～48833	1221~40694
100	1.413 ～339.12	8.478～282.6	1400	277~66467	1662~55389
125	2.2079～529.87	13.2468～441.56	1600	361.8～86814	2171~72345
150	3.1793～763	19.0755～635.85	1800	457.9～109874	2747~91562
200	5.652～1356	33.912～1130.4

Common problems with battery powered electromagnetic flow meters:

How long can a battery powered electromagnetic flowmeter last