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Electromagnetic Flowmeter LDG Series
Widely used in metallurgy, water supply, drainage, oil, chemical, food, medical care, environmental protection, agricultural irrigation and other departments
Measuring media: any conductive liquid
Measuring range: 0.14-113040m³ / h
Output signal: 4 ~ 20mA (load resistance 0 ~ 750Ω), pulse / frequency control level
Accuracy class: 0.5, 1.0 level
Medium temperature:
Conventional rubber lining: -20 ~ + 60 ℃
high temperature rubber lining: -20 ~ + 90 ℃
PTFE lining: -30 ~ + 120 ℃
high temperature tetrafluoroethylene lining: -20 ~ + 160 ℃
Explosion Proof: Exd [ia] iaqIICT5
Protection class: Standard IP65, special order up to IP68
Product Overview
Electromagnetic flowmeter according to Faraday's law of electromagnetic induction works to measure conductive liquid volume flow meter, fluid mechanics and electromagnetics product of the combination. As flow measurement precision instrumentation, and its application throughout the metallurgy, water supply, drainage, oil, chemical, food, medical care, environmental protection, agricultural irrigation and other departments.
LD electromagnetic flowmeter is integrated in the LDS series electromagnetic flowmeter on the basis of a new update of electromagnetic flowmeter. Both in appearance and assembly methods, or in the internal structure, we have made a new breakthrough: angular appearance, quick installation without soldering process, the magnetic field distribution better rationalize the structure. It also introduced a zinc spray process, even in harsh environments, still long-term protection of the tube surface electromagnetic flowmeter, superior surface corrosion resistance.
Product Features
More even distribution of the magnetic field sensor, the signal stronger and stronger for small flow adaptability limit of up to 0.3m / s;
Zinc spray pipe surface, even in harsh environments, can also play a role in long-term protection, excellent surface corrosion resistance;
All sensor housing with a precision aluminum die build, beauty products, the appearance of strong consistency, tight fit, the overall non-welding, handling quick, easy maintenance;
The overall stability, stronger anti-interference;
Humanized bottom bracket design, display smooth;
Extra-thick lining, arc electrode having good corrosion resistance and abrasion resistance, mixed media and more resilient;
Table head can rotate 360 ​​degrees, so that the installation space for small occasions, more convenient display;
Measured from the fluid density, viscosity, temperature, pressure and conductivity change;
Measuring tube unimpeded flow of parts, no pressure drop, straight pipe requirements low. Measurement of the slurry has a unique adaptability;
16-bit embedded microprocessors, computing speed, high precision, programmable low-frequency square wave frequency magnetic grind, improve the stability of flow measurement, low power consumption;
Technology, circuit reliability using SMD devices and surface mount (SMT);
In the field according to actual needs of users online range, to better match the collection terminal;
Physical parameters measurement of fluid pressure, temperature, density, viscosity, etc.;
High-resolution backlit LCD display, full Chinese menu operation, easy to use, simple, easy to understand;
?? Has RS485, RS232, Hart, and Modbus Profibus-DP and other digital communication signal output (optional);
A self-test and self-diagnosis and self-diagnostic alarm function;
Total hours of recording function, in hours recorded total traffic for time-measurement system (optional);
There are three internal totalizer can show the cumulative amount of the forward and reverse cumulative amount of the difference between the volume totalizer with internal power-down clock, can record 16 power-down time (optional);
Infrared hand-held operator, 115KHZ communication speed, long-distance non-contact operation of all functions of the converter (optional);
Ultra-low EMI switching power supply for power supply voltage range, anti-EMI performance.
 
Technical Parameters

Implementation of standards	Electromagnetic Flowmeter(JJG1033-2007)
Nominal by (mm)  (Special specifications can be customized)	Tetrafluoroethylene pipeline lining: DN10-DN600
	Pipeline rubber lining: DN40-DN2000
Flow direction	Positive and negative, the net flow
Turndown ratio	150:1
Repeatability error	±0.1% of measured value
Accuracy class	0.5级，1.0级
Measured medium temperature	Conventional rubber lining: -20～+60℃
	High temperature rubber lining: -20～+90℃
	PTFE lining: -30～+120℃
	High temperature tetrafluoroethylene lining: -20～+160℃
Rated working pressure  (High voltage can be customized)	DN10～DN25≤4.0MPa
	DN32～DN150≤1.6MPa
	DN200～DN600≤1.0MPa
	DN700～DN2000≤0.6MPa
Flow range	0.1-15m/s
Conductivity Range	Measured fluid conductivity≥5μs/cm
Signal Output	4～20mA（load resistance 0 ~ 750Ω）, pulse / frequency control level
Communication Output	RS485，MODBUS protocol, HART protocol, Profibus-DP protocol
Power Supply	220VAC, tolerance of 15% or 24VDC, ripple≤5%
Length of straight pipe requirements	Upstream≥5DN，downstream≥2DN
Connection	Flange are used between meter and piping, flange according to international: GB/T9113.1-2000
Explosion levels	Exd[ia]iaqIICT5
Protection class	IP65, special order up toIP68
Ambient temperature	-25～+60℃
Relative humidity	5%～95%
Total power consumption	Less than 20W