Flow Measuring Instruments Electromagnetic Flow Meter

Product Specifications

Markets:	North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Sensor:	Tube/Flange
Type:	Electromagnetic Flow Meter
Measuring Media:	Liquid
Measuring Principle:	Electrical Principles
Main Application:	Fuel Oil
Accuracy:	0.5/1.0
Size:	Dn10-2600

Product Description

Electromagnetic Flowmeter

Description :
Intelligent electromagnetic flowmeter consists of two parts, the sensor and converter. It is based on the work of Faraday's law of electromagnetic induction, used to measure the conductivity is greater than 5μS / cm conductive liquid volumetric flow rate, is a measure of the volume flow of conductive medium for induction meter. In addition to measure the volume flow of conductive liquid, it can also be used to measure the volume of a homogeneous liquid-solid two-phase flow of a liquid suspension of acid and alkali and other strong corrosive liquids and slurries, pulp and paper pulp.
Widely used in flow measurement of petroleum, chemical, metallurgy, textile, paper, environmental protection, food and other industrial and municipal administration, water conservancy construction, river dredging and other fields.


Parameter

Nominal Diameter(mm) (Special specifications can be customized)	pipeline tetrafluoroethylene lining:DN10~DN2600
	Pipeline rubber lining:DN40~DN2600
Flow direction:	positive and negative, the net flow
Turndown ratio:	1500:1
Repeatability error:	± 0.1% of measured value
Accuracy:	Pipeline:0.5,1.0
Measured medium temperature:	ordinary rubber lining::-20~+60ºC
	High-temperature rubber lining: -20~+90ºC
	PTFE lining:-30~+100ºC
	High temperature tetrafluoroethylene lining:::-20~+180ºC
Rated working pressure: (High voltage can be customized)	DN6-DN80:≤2.5MPa
	DN100-DN250:≤1.6MPa
	DN300-DN2600:≤1.0MPa
Flow rate range:	0.1-15m/s
Conductivity range:	the measured fluid conductivity≥5μs/cm
Current output:	load resistance	0~10mA:0~1.5kΩ
		4~20mA:0~750 kΩ
Digital frequency output:	transistor output frequency limit can be set with optical isolation within 1 ~ 5000HZ bidirectional open-collector output. External power supply is turned ≤35V maximum collector current of 250mA
Power supply:	AC220Vor DC24V
Length of straight pipe  requirements	upstream≥5DN,downstream≥2DN
Connection:	are used between the meter and piping flange connection, flange dimensions shall comply with the provisions of GB11988
Explosion levels	mdIIBT4
Protection class:	IP65,special order up to IP68
Ambient temperature:	-25~+60ºC
Relative humidity:	5%~95%
Total power consumption:	less than 20W

Features  : 

Fully digital processing, anti-interference ability, reliable measurement, high accuracy flow measurement range up to 1500: 1
Ultra-Low EMI switching power supply for supply voltage variation range, anti-EMI performance.
16-bit embedded microprocessors, computing speed, high precision, programmable low-frequency square wave excitation frequency and improve the stability of the flow measurement, low power consumption.
using SMD devices and surface mount (SMT) technology, circuit reliability.
No moving parts inside the pipe l, unimpeded flow of parts, measuring almost no additional pressure loss.
range in the field can be modified online according to the actual needs.
measurements and velocity distribution, the physical parameters of the fluid pressure, temperature, density, viscosity and the like.
High-resolution backlit LCD display, full Chinese menu, easy to use, simple to operate, easy to understand.
have RS485, RS232, Hart, and Modbus and other digital communication signal output. (Optional)
has a self-test and self-assertion.
total hourly recording function to record the total flow in units of hours for hourly metering system (optional)
have three internal totalizer can show the cumulative amount of forward and reverse cumulative amount of the difference between the volume totalizer, the internal power-down features not always, can record 16 power-down times. (Optional)
IR handheld operator, 115KHZ communication speed, long-distance non-contact operation of all functions converter (optional)

Measurement range:

Inner diameter(mm)	10	15	20	25	32	40	50	65
Qmin(m3/h)	0.0283	0.0636	0.12	0.176	0.29	0.452	0.7	1.19
Qmax(m3/h)	4.24	9.54	16.96	26.5	43.42	67.85	106.0	179.0
Inner diameter(mm)	80	100	125	150	200	250	300	350
Qmin(m3/h)	1.8	2.82	4.41	6.36	11.3	17.6	25.4	34.6
Qmax(m3/h)	271.0	424.0	662.0	954.0	1690	2650	3810	5190
Inner diameter(mm)	400	450	500	550	600	700	800	900
Qmin(m3/h)	45.2	57.2	77.6	85.5	101.0	138.0	180.0	229.0
Qmax(m3/h)	6780	8570	10600	12800	15200	20700	27100	34300
Inner diameter(mm)	1000	1100	1200	1400	1600	1800	2000	2200
Qmin(m3/h)	282.0	342.0	407.0	554.1	732.7	916.0	1131.0	1368.4
Qmax(m3/h)	42400	51300	61000	83121	108566	137404	169635	205258

Select the lining material
Should be based on the measured medium temperature corrosive wear and to select the lining material

Lining material	corrosion resistance	Working temperature	Application
Ne	General resistance to low concentrations of acid salt corrosion	-20~70ºC	lower industrial water effluent pH and salt concentration
PO	Has an excellent wear resistance, abrasion resistance slurry dedicated to strong, not decay	-10~60ºC	Liquids containing solid particles (slurry pulp, etc.)
FEP	1 corrosion resistant and quite PTFE 2 high mechanical strength, good wear resistance 3 table smooth, easy adhesion precipitate 4 have strong abrasive media fluid good resistance to outside negative, anti-vacuum effect	-40~180ºC	except mortar. Like with PTFE can be used for drinks and other health requirements of the media
PTFE	lmost all of the corrosion resistant chemical media, poor wear resistance	-40~180ºC	Not be used for pipes and wear strong negative fluid

Selective Electrode Materials
Should be based on the measured fluid corrosive to select material of the electrodes, check the manual for special fluids should be corrosion test

Material	Code	corrosion resistance
316Lstainless steel	V	1 applies to a neutral solution of industrial, domestic water, raw water wells, urban sewage 2 weak corrosive acids, bases, salts medium such as carbonic acid, acetic acid, etc.
Hastelloy C	HC	1 applies to anti-oxidizing acids, such as a mixture of nitric acid, mixed acid, chromic acid and sulfuric acid 2 oxidation resistance salt or other corrosive environments, such as the oxidant Fe, Cu 3 Sea water, alkali solution, the oxide solution has excellent corrosion resistance 4 NA: hydrochloric acid
Hastelloy B	HB	1 for the non-oxidizing acids, bases, salts such as sulfuric acid, phosphoric acid, hydrofluoric acid has good corrosion 2 NA: nitrate
Titanium	Ti	seawater resistant, various chlorides suddenly hypochlorite and a variety of corrosion hydroxide
Ta	Ta	except hydrofluoric acid, almost all corrosive chemical media capability. But expensive
Platinum	Pt	salt solution applicable to all of the acid (fuming sulfuric acid and nitric acid)
Tungsten	W	has excellent wear resistance, dedicated to the mud, pulp and other abrasive media

Selectable:

Model number										Directions
LDG —			-						-
Path										10-2600mm
Combination		S								Compact
Electrode material			M							SS
			T							Ti
			D							Ta
			H							Hastelloy
			P							Pt
			N							Ni
Output mode				0						No output
				1						4-20mA/1-5KHz
				2						4-20mA
Lining material					X					Rubber
					F					Teflon
					P					Polyethylene
					J					Polyurethane
Local display						0				no
						1				yes
Communication							0			no
							1			RS485
							2			RS232
							3			Mobdus
							4			Hart
Ground								0		No grounding ring
								1		grounding ring
								2		The ground electrode
Limit traffic									(n)	Limit the flow (range) m3 / h

Example: use of a local display type electromagnetic flowmeter sewage pipes for user DN50, require rubber lining, stainless steel electrodes, 4 ~ 20mA output, no communication, limit the flow of 30m3 / h. Models should be: LDG-50S-M1X100-30