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Electromagnetic Flowmeter Sewager Liquid DN50

Electromagnetic flowmeter is a kind of instrument that uses Faraday's law of electromagnetic induction to measure the volume flow of conductive liquid.
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Electromagnetic Flowmeter Sewager Liquid DN50电磁流量计_01

Product features:

1. There are no moving parts hindering the measurement. When the fluid passes, it will not cause pressure loss or blockage in the pipeline. It is suitable for measuring liquid-solid two-phase fluids containing solid particles, such as pulp, mud, sewage, etc.

2. Flow measurement is not affected by changes in fluid density, viscosity, temperature, pressure and conductivity.

3.The electromagnetic flowmeter has no mechanical inertia, and has a more sensitive response, which can measure instantaneous pulsating flow, and also measure flow in both directions.

4. The range of the electromagnetic flowmeter is extremely wide, and its measurement range (range ratio) can reach 150: 1, and some even reach 1000: 1.

5. Internal non-power-down clock, can record 16 times of power-down time.

6.Has a strong anti-corrosion ability, can measure almost any conductive liquid.


Product details:

1.LCD backlight display

2.Instantaneous flow, cumulative flow meter, flow bar graph, flow percentage

3.One-click query of net cumulative value, positive cumulative value, negative cumulative value, current conductivity equivalent

4.Multiple units can be switched (L, m³, Kg, t / s, min, h)

5.485 communication remote read data

6.Upgraded thickened high-strength flange (anti-shedding lining, anti-flanging, anti-leakage)

7.Use high-quality electrodes, standard 3 electrodes, better than the conventional two electrodes on the market, and more accurate measurement

8.The grounding screw is directly connected to the body, and can also be equipped with a grounding ring, which can effectively solve electrical interference, ground well, and ensure personal safety

9.Imported SMD components, water-proof dust coating protection, standard IP65 (water-proof dust) grade

10.Advanced anti-interference circuit design, anti-surge, more stable value.


Product parameters and selection:


Main Power AC220V 50Hz /DC24V/3.6V
Power Consumption <15W(Supporting power consumption with sensors)
Display And Buttons Display in Chinese and English, can display instantaneous flow, cumulative flow and alarm display (excitation open circuit alarm, empty pipe alarm, flow limit alarm). 4 membrane touch switches for data setting
Counter Forward total, reverse total
Output Signal Analog        Output Two-way two-way, fully isolated 0~10mA/4~20mA
Load resistance: 0 ~ 1.5kΩ when 0 ~ 10mA; 0 ~ 750Ω when 4 ~ 20mA
Frequency    Output Forward and reverse flow output, the upper limit of output frequency can be set within 1 ~ 5000Hz.   Open collector bidirectional output of transistor with photoelectric isolation. External power supply   is not greater than 35V, the maximum current of the collector  when conducting is 50mA
Alarm Output Two open-collector alarm outputs with photoelectric isolation transistors. The external power supply   is not greater than 35V, and the maximum current of the collector when it is turned on is 250mA.   Alarm status: fluid empty pipe, excitation disconnection, flow overrun.
Pulse Output Forward and reverse flow output, the upper limit of output pulse can reach 5000CP / S.The pulse   equivalent is 0.0001 ~ 1.0m³ / P.  The pulse width is automatically set to 20ms or square wave.Open   collector output of transistor with photoelectric isolation.External power supply is not greater than   35V, the maximum current of the collector when conducting is 50mA
Matching accuracy ± 0.5% of market value, optional ± 0.2% or 1% of indicated value
Damping time constant Continuous variable from 0 ~ 100s (90%) time grading optional
Communication Optional RS232C or RS485 serial communication interface, HART communication protocol,with anti-lightning     protection
Loss of power The internal design of the instrument has a power-off clock, which can store 16 drop-out records (10 years)
Protection level IP65
Explosion-proof mark Exs[ia]ia||cT5


Material Corrosion performance
316L Electrode Application: domestic / industrial water, sewage
PH value: within 6/7/8
Not applicable: corrosive media such as hydrofluoric acid / hydrochloric acid / chlorine / iodine
HB Application: certain concentration of hydrofluoric acid and other oxidizing acids and non-oxidizing hydrochloric acid, alkali solution with aconcentration of not less than 70% sodium hydroxide.
PH value: within 5/6/7/8
Not applicable: Oxidizing acids such as nitric acid
HC Application: corrosion resistance to oxidizing salts or environments containing other oxidants, especially to seawater.
PH value is within: 6/7/8/9
Not applicable: hydrochloric acid, dilute sulfuric acid, phosphoric acid and other reducing acids and chlorides
TI Application: chloride, hypochlorite, sea water, oxidizing acid.
PH value: within the range of 6/7/8/9/10
Not applicable: hydrochloric acid, sulfuric acid and other acidic media
TA Application: concentrated hydrochloric acid, nitric acid, sulfuric acid and other acid liquids, including boiling hydrochloric acid and nitric acid.
PH value: within 3/4/5/6
Not applicable: alkali, hydrofluoric acid, fuming sulfuric acid
PT Various acids, bases, salts. Not included: Royal Water
Material Main performance
Polyurethane rubber 1. Very good wear resistance coal slurry, mud, ore slurry, etc.
2. Not resistant to acid, alkaline and other corrosive or high temperature media
3. There must be no negative pressure in the pipeline
Neoprene 1. Very good elasticity and wear resistance
2. Capable of measuring domestic sewage, non-corrosive industrial sewage PH value: in the range of 6/7/8, temperature below 80 ℃ liquid
3. There must be no negative pressure in the pipeline
Teflon F-4 PTFE 1. Boiling-resistant hydrochloric acid, sulfuric acid, nitric acid, aqua regia, concentrated alkali and various organic solutions
2. Strong abrasion resistance and poor bonding performance
3. There must be no negative pressure in the pipeline
Perchloroethylene propylene
F-46(PTFE)
1. On the basis of all functions of PTFE, the temperature of non-corrosive liquid can be increased within 140 degrees
2. Not resistant to fuming nitric acid, butyl lithium
3. There must be no negative pressure in the pipeline
Silicone fluoride lining
Temperature resistance: 70 degrees, mainly high temperature. It can be used to measure hot water in heating systems, and is not resistant to corrosion.

FAQ:

1. Why does it sometimes show negative values when connected?

Reversed, you can use bidirectional measure.

2. What should I do if there doesn't have such a suitable straight pipe section before and after?

Make a bypass, which not only ensures a straight pipe section, but also facilitates later maintenance.

3. Is the accuracy over the entire flow range?

This accuracy refers to the relatively suitable range in the middle. The accuracy will be slightly worse at the upper and lower limits of the range.

4. Why does the value jump after being connected to the scene?

The nearby electromagnetic interference is too strong, and there is no grounding treatment.

5. What is the difference between integrated type and split type?

It is judged by the installation conditions on site.

6. Why does the flow meter measuring sewage take a long time without data or measurement accuracy?

The electrode may be covered with sludge or damaged, and regular maintenance is recommended.

7. Why is there no reading on the on-site flow meter?

The reason for the medium: insufficient water content, insufficient conductivity, too small flow rate, or not full tube.

8. What is the difference between the measured value and the output value?

Dissatisfied tube, flow rate is too low, the converter is damaged, and the range is exceeded.

9. Why is there a flow display after the connection?

The pipeline is not full of liquid or contains bubbles in the liquid. Subjectively, the tube pump liquid is not flowing but there is actually a small flow. There are reasons for the liquid (such as poor liquid conductivity uniformity, electrode pollution, etc. )


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