Chengde plug-in electromagnetic flowmeter

Product Category：

BSD2The plug-in intelligent electromagnetic flowmeter consists of a sensor and a signal converter, which can be divided into two types of structures: integrated and separated according to the assembly form of the converter and sensor.

Integrated: The converter and sensor are directly assembled as a whole and cannot be separated.

Split type: The converter is composed of a cable and a sensor to form a product. The sensor is installed on site (or in places with harsh conditions or inconvenient reading for personnel), and the converter is installed in places with better conditions.

Measuring principle：

The working principle is based on Faraday's law of electromagnetic induction. That is, when a conductor moves in a cutting magnetic field, an induced electromotive force is generated in the conductor, and the induced electromotive force UE is

UE=BDVAmong them, UE: Induced voltage

B: Magnetic field strength

D: Length of conductor (pipe diameter)

V: Conductor cutting magnetic field velocity (average flow velocity)

When measuring flow rate, the liquid flows through a magnetic field perpendicular to the flow direction, and the flow of conductive liquid induces a voltage proportional to the average flow velocity (i.e. volume flow rate). The induced voltage signal is detected through two electrodes in direct contact with the liquid and sent to an amplifier, which then converts it into a standard signal output.

Features：

On site, there is no need to cut off, disconnect, or stop production. It can be installed online under pressure (working pressure less than 0.8MPa), eliminating the need for bypass and saving three valves. Compared to pipeline electromagnetic flow meters with a diameter greater than DN200, it has a significantly higher cost-effectiveness.

High precision, good stability, and not affected by changes in the temperature, pressure, density, viscosity, and conductivity of the measured liquid.

The sensor has a simple structure, no throttling device, no blockage, and is suitable for measuring liquids containing solid particles, fibers, and suspended solids.

It can be installed horizontally, vertically, or diagonally, as long as the measuring tube is filled with liquid and free of bubbles.

The measurement range is wide, with a ratio of 100:1, and the range can be modified.

On site zero calibration is possible without affecting measurement accuracy.

Low power consumption, less than 7W.

On site LCD displays instantaneous flow rate, cumulative flow rate, flow percentage, fluid flow rate, and fault alarm.

■ Chinese menu, parameters can be viewed and modified according to prompts, and the four button functions can be set by the software at any time, which is convenient and easy to use

Learn.

Fault self diagnosis, which can realize air traffic control judgment alarm, excitation fault alarm, over range alarm, and output signal fault alarm

Police.

■ It can accumulate forward traffic, reverse traffic, and bidirectional traffic difference.

Automatic conversion of measurement units and decimal places.

High explosion-proof rating, explosion-proof mark Exd (ia) iaq Ⅱ CT6.

Multiple signal output options include 4-20mA, 0-1kHz, HART, RS485, etc.

■ One click restore factory parameter settings.

Technical Specifications:

■ Sensor section

Applicable pipe diameter: ≥ 80mm

Sensor material: stainless steel (1Cr18Ni9Ti)+polytetrafluoroethylene (PTFE)

Outer diameter of sensor probe: Φ 37mm

Sensor insertion depth into pipeline: 1/8D and ≤ 40mm (D is the inner diameter of the pipeline)

Working pressure: 1.0MPa, 1.6MPa, 4MPa, 25MPa (special)

Fluid temperature: -40 ℃~100 ℃, 100 ℃~180 ℃ (high temperature)

■ Converter section

Applicable medium: Liquid with conductivity>5us/cm

Measurement range: 0.1-10m/s

□ Range upper limit: 0.5-10m/s (recommended 1-5m/s)

Accuracy level: 1.0 level, 2.0 level

Output signal: 4-20mA, load ≤ 750 Ω; 0~1kHz pulse output, active 24V, greater than 10mA; RS485; HART

Power supply: 220VAC ± 10%, 50Hz ± 1Hz; 24VCD ± 10%

Power consumption:<7W

□ Environmental temperature: -25 ℃~60 ℃ (explosion-proof type 50 ℃)

□ Environmental temperature: ≤ 85% RH (at 20 ℃)

Explosion proof signs: Exd (ia) iaq Ⅱ CT6, Exd (ia) iaq Ⅱ BT4

□ Shell protection level: Integrated: IP65; Split type: sensor IP68, converter IP65

□ Electrical interface size: M20 × 1.5, 1/2NPT Weight: Integrated 8kg, Split 10kg