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Tianjin Lingyu Technology Co., Ltd

E-mail
sales@lingyukeji.com
Phone
15320105518|18920902093|18920413023
Address
Workshop on the right side of the first floor of the scientific research building in Zhonglian Industrial Park, Xiqing District, Tianjin City

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Compact electromagnetic flowmeter

NegotiableUpdate on 07/24

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

Suitable for measuring the flow rate of conductive liquids, with a recognizable conductivity as low as 2.5uS/cm. Convert the measured flow value into a 4-20mA current signal output, with three calculators that can display the forward cumulative amount, reverse cumulative amount, and difference cumulative amount respectively. It can be measured, displayed, or remotely monitored, with functions such as quick response, remote setting, and self diagnosis. This product has the following characteristics: ● Measurement is not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity. The electrode and lining materials are formed in one go, with good stability and reliability. It has self checking and self diagnostic functions. ● Can be configured through a HART controller ● The sensor is lined with PEEK and the pipeline can operate under negative pressure. ● Equipped with RS485 function (to be specified when ordering)

Product Details

product overview Product overview

The LF-14D series electromagnetic flowmeter integrates the sensors and converters of traditional electromagnetic flowmeters into one, with a compact appearance and flexible installation. It is operated by an infrared remote control and easy to install and debug. It is widely used in various industries to measure the volume flow rate of conductive liquids with a conductivity greater than 2.5uS/cm. It is an inductive instrument for measuring the volume flow rate of conductive media. Adopting ARM Cortex-M3 32-bit processor and 24 bit ADC data acquisition system, it has fast computing speed and high accuracy. The instrument has self diagnostic functions such as air traffic control detection, excitation return fault, and flow alarm. The sensor uses imported PEEK material as the inner lining, and the electrode and PEEK inner lining adopt a one-time injection molding process, ensuring the consistency and reliability of product production.

Product principle THE PRODUCT PRINCIPLE

Electromagnetic flowmeter is based on Faraday's law of electromagnetic induction, which states that a conductor moving in a magnetic field will generate an induced voltage. liquidCan be regarded as a conductor; The magnetic field is generated by an energized coil outside the flow tube. The amplitude of induced voltage is directly proportional to the velocity of the conductor, the type of conductor, the diameter of the pipeline, and the strength of the magnetic field. Its value is:
E=B*V*D*K
In the formula:
E - Induced potential;
B - Magnetic induction intensity;
V - velocity of conductive fluid movement;
D - electrode spacing; (Measuring the inner diameter of the tube)
K - Coefficient related to magnetic field distribution and axial length (instrument coefficient);
Among them:
B. D and K can be fixed values or calibrated, simplifying the equation to E ∝ V.
The sensor uses the induced potential E as a flow signal, which is transmitted to the converter. After signal processing such as amplification, transformation, and filtering, the instantaneous flow rate and accumulated flow rate are displayed on a backlit dot matrix liquid crystal display

performance index TECHNICAL PARAMETERS

Execution standard: Electromagnetic flow sensor (JB/T9248-2015)
Verification regulation: Electromagnetic flowmeter (JJG1033-2007)
Tested medium: Conductive liquid (conductivity not less than 2.5uS/cm)
Flow meter lining: polyetheretherketone (PEEK) lining
Flow meter diameter: DN15 to DN50
Pressure: -0.1MPa to 6.3MPa
Electrode material: 316L
Body material: 304, 316L
Electrical connection: M12-4-core connector
Pipeline interface: default to British external thread. Other interfaces can be customized.
Accuracy level: ± 0.3% FS
Corresponding repeatability: ≤ 0.1%
Output signal: 4-20mA (maximum load 500 Ω)
Range ratio: 1:150
Power supply: 18-30VDC
Power consumption: 5W
environmental condition
Environmental temperature: -10 ℃ to+60 ℃
Storage temperature: -25 ℃ to+85 ℃
Relative humidity: 5% to 95%
Protection level: IP65/IP67
Measurement range:

caliber	Volume flow rate (L/H)	Volume flow rate (L/min)
DN6	6～900L/h	0.1L/min～15L/min
DN10	15～2250L/h	0.25L/min～37.5L/min
DN15	40～6000L/h	0.7L/min～100L/min
DN20	60～9000L/h	1.0L/min～150L/min
DN25	100～15000L/h	1.7L/min～250L/min
DN32	150～22500L/h	2.5L/min～375L/min
DN40	250～37500L/h	4.2L/min～625L/min
DN50	400～60000L/h	6.7L/min～1000L/min

External dimensions APPEARANCE OF SIZE

DN	A(mm）	B(mm）	C(mm）	D(mm）	E(mm）	F(mm）	G(mm）	S(mm）
6	150	76	90	6	M12*1	50	NPT1/4"	14
10	150	76	90	10	M12*1	50	NPT3/8"	17
15	150	76	90	15	M12*1	50	G 3/4"	27
20	150	89	90	20	M12*1	56.5	G 3/4"	27
25	150	89	90	25	M12*1	56.5	G 1"	36
32	200	108	100	32	M12*1	69	G 1-1/4"	42
40	200	108	100	40	M12*1	69	G 1-3/4"	56
50	200	108	100	50	M12*1	69	G 2"	80

INSTALLATION REQUIREMENTS INSTALLATION

Installation of electromagnetic flowmeter on pipelines:
The positive direction of flow should be consistent with the positive direction indicated by the arrow on the sensor. a. Bolts and nuts: To facilitate installation, ensure sufficient installation space near the pipe flange. b. If the medium temperature or ambient temperature exceeds 50 ℃, protective measures should be taken to prevent overheating of the shell during installation to avoid burns caused by personnel touching

Electrical Connection: There are two types of electrical connectors provided to users: M12 connector plug (users can wire themselves to the installation position of the flowmeter and then connect to the plug to connect with the flowmeter) M12 electrical connection cable (default length of 2 meters:)

To avoid measurement errors caused by gas entrapment, please install the flowmeter at the following locations: