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1、 Overview：Guangzhou Minghong Automation Instrument Co., Ltd

LDTThe series electromagnetic flowmeter can accurately measure the volumetric flow rate of various liquids and slurries, especially suitable for clean water, sewage, various highly corrosive fluids, food and beverages with hygiene requirements, and any concentration of slurry, pulp, cement slurry, etc.

Features: The inner wall of the sensor measuring tube is smooth and completely straight through; Multiple lining and electrode materials can be selected to meet the hygiene requirements, corrosion resistance, and wear resistance requirements of the tested medium; The output signal is proportional to the volumetric flow rate and is not affected by other physical properties of the measured medium, ensuring the measurement accuracy of volumetric flow rate; Range ratio up to1：40The minimum range is as low as0～0.5m/s.

2、 Technical data

Sensor caliber DN6-2000MM

Measuring medium liquid

Dielectric conductivity: ≥ 10 μ s/cm

Flow velocity range: 0.1-10 m/s

Range upper limit: 0.5-10 m/s

Basic error: 0.5% FS 1.0% FS

Work pressure: 0.6-4.0 Mpa

Medium temperature: -40~200oC

Environmental temperature:<50 ℃

Relative humidity:<90%

Protection level: IP65 (separate IP68)

Insulation grade E connecting flange; According to national standards

Measurement tube material: 1Cr18Ni9Ti stainless steel

Lining material: chloroprene rubber, polyurethane rubber, polytetrafluoroethylene, perfluoroethylene propylene

Electrode material: 1Cr18Ni9Ti (standard type) Hastelloy B Hastelloy C Titanium Tantalum Platinum

Output signal; 4~20mA DC

Signal load: ≤ 350 Ω or 700 Ω

Supply voltage; 220V AC

explain:Guangzhou Minghong Automation Instrument Co., Ltd

We can provide frequency output signals according to user ordering requirements, including active pulses and passive pulses（Optical coupling isolation）Two forms, the maximum output frequency value is4KHZ.

Active pulse: high level=11±1VLow level ≤0.5VLoad current: ≤20mA

Passive pulse: high level=External power supply(≤30V)－1V，Low level ≤0.5V，Load current ≤50mA

There are two ways to express the relationship between frequency signals and flow values:

1Pulse equivalent method -L/Pperhapsm³/PEach output pulse represents how many liters or how many cubic meters.

2Range frequency correspondence method - the maximum flow rate set by the instrument corresponds to the maximum frequency value output, for example, the instrument range is80 m³/hThe maximum frequency output is2KHZ .