Anti corrosion electromagnetic flowmeter, electromagnetic flowmeter parameters-Fornitore globale

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Anti corrosion electromagnetic flowmeter, electromagnetic flowmeter parameters

Product Name: Anti corrosion Electromagnetic Flow Meter Product Model: MS-LDE-F Series Product Features: MS-LDE-F Series Anti corrosion Electromagneti

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Product Name: Anti corrosion Electromagnetic Flow Meter

Product model: MS-LDE-F series

Product features: The MS-LDE-F series anti-corrosion electromagnetic flow measurement principle is Faraday's law of electromagnetic induction. The main components of the sensor are: measuring tube, electrode, excitation coil, iron core, and magnetic yoke housing.

Anti corrosion electromagnetic flowmeterDetailed information:

MS-LD series anti-corrosion electromagneticflowmeterAdopting the world's latest technology. By using constant current low-frequency ternary rectangular waves or dual frequency rectangular waves for excitation, it not only has the advantages of rectangular wave magnetic fields, but also overcomes the disadvantages of sine wave magnetic fields; It can also eliminate errors caused by fluctuations in power supply voltage, changes in power supply frequency, and changes in excitation coil impedance; And it has excellent zero stability and is not affected by fluid noise interference. Therefore, it has the characteristics of high stability and high reliability. The measurement principle of the Type anti-corrosion electromagnetic flowmeter is based on Faraday's law of electromagnetic induction. The Type anti-corrosion electromagnetic flowmeter consists of a sensor and a converter. The sensor is installed on the measurement pipeline, and the converter can be combined with the sensor to form an integrated electromagnetic flowmeter. The converter is installed within 30 meters or 100 meters of the sensor, and is connected by a shielded cable to form a split electromagnetic flowmeter. The main components of the anti-corrosion electromagnetic flowmeter sensor are: measuring tube, electrode, excitation coil, iron core, and magnetic yoke housing.
TypeAnti corrosion electromagnetic flowmeterMainly used to measure the volumetric flow rate of conductive liquids and slurries in closed pipelines. Such as water, sewage, mud, pulp, various acids, alkalis, salt solutions, food slurries, etc., widely used in the production process flow measurement and control of industries such as petrochemicals, steel metallurgy, water supply and drainage, water conservancy irrigation, water treatment, environmental protection sewage total control, papermaking, pharmaceuticals, food and other agricultural sectors; Suitable for measuring the total amount of conductive liquids.
Product features:
1. Programmable low-frequency rectangular wave excitation improves the stability of flow measurement and reduces power loss;
2. Adopting a 16 bit embedded microprocessor, it has fast computing speed and high accuracy;
3. All digital processing, strong anti-interference ability, reliable measurement, high accuracy, and a flow measurement range of up to 1500:1;
4. Ultra low EMI switching power supply, suitable for a wide range of power supply voltage changes, with good EMC resistance performance;
5. Full Chinese character menu operation, easy to use, simple to operate, easy to learn and understand;
6. High definition backlit LCD display;
7. It has bidirectional flow measurement and bidirectional total accumulation functions, and bidirectional output functions for current and frequency;
8. There are three integrators inside that can display forward cumulative quantity, reverse cumulative quantity, and differential cumulative quantity respectively;
9. Equipped with RS485 or RS232 digital communication signal output
10. Equipped with conductivity measurement function, it can distinguish whether the sensor is empty or not;
11. The constant current excitation current has a wide range and can be used in conjunction with different companies and types of electromagnetic flow sensors;
12. Equipped with self checking and self diagnostic functions;
13. Adopting SMD devices and surface mount (SMT) technology, the circuit has high reliability;
14. The internal design of the instrument includes a non power failure clock that can record 16 power failure times.

Technical data of the whole machine and sensors:

Execution standards	JB／T 9248~1999
Nominal Diameter	10. 15、20、25、32、40、50、65、80、100、125、150、200、250、300、350、400、500、 600、700、800、900、1000、1200、1400、1600、1800、2000、2200、2400、2600、2800、3000
Maximum flow velocity	15m／s
accuracy	DNl5～DN600	Indicating value:±0.3%Flow rate≥1m／s；±3mm／svelocity of flow<1m／s
	DN700~DN3000	Indicating value±0.5%Flow rate≥0.8m／S；±4mm／svelocity of flow<0.8m／S
Fluid conductivity	≥5uS／cm
nominal pressure	4.0MPa	1.6MPa	1.0MPa	0.6MPa	6.3、10MPa
	DNl5～DN150	DNl5～DN600	DN200～DN1000	DN700～DN3000	Special Orders
ambient temperature	sensor	-25℃- +60℃
	Converter and integrated model	-10℃- +60℃
Lining material	Polytetrafluoroethylene, chloroprene rubber, polyurethane, perfluoroethylene propyleneF46Add NetworkPFA
Maximum fluid temperature	All-In-One	70℃
	separated	Polychloroprene rubber lining	80℃；120℃Please indicate when placing an order
		Polyurethane lining	80℃
		PTFE lining	100℃；150℃Please indicate when placing an order
		FEPF46
		screeningPFA
Signal electrode and ground electrode materials	stainless steel0Crl8Nil2M02TiHastelloy alloyCHastelloy alloyBTitanium, tantalum, platinum/iridium alloy, stainless steel coated with tungsten carbide
Electrode scraper mechanism	DN300—DN3000
Connecting flange material	carbon steel
Grounding flange material	stainless steel1Crl8Ni9Ti
Imported protective flange materials	DN65—DNl50		stainless steel1Crl8Ni9Ti
	DN200～DNl600		Carbon steel and stainless steel1Crl8Ni9Ti
Shell protection	DNl5～DN3000Separable rubber or polyurethane lined sensor			IP65perhapsIP68
	Other sensors, integrated flow meters, and separate converters			IP65
Distance separation type	The distance between the converter and the sensor is generally not more than100m

Converter technology data

power supply

exchange

85—265V，45—400Hz

direct-current

11—40V

Operation keys and display

Touch-tone

4A thin film button can be used to set and select all parameters, and can also be utilizedPCmachineRS232Programming the converter settings;

3goLCDWide viewing angle, wide temperature range, backlit display;

auxiliary word for ordinal numbers1Display traffic values in rows;

auxiliary word for ordinal numbers2Display flow units in rows;

auxiliary word for ordinal numbers3Display the percentage of traffic, total forward, total reverse, total difference, alarm, and flow rate.

Magnetic key type

2A magnetic key is used to display parameter selection and reset, utilizingPCmachineRS232Programming the converter settings;

2goLCDWide viewing angle, wide temperature range, backlit display:

auxiliary word for ordinal numbers1go:Magnetic key selection:Display traffic percentage, forward total amount, reverse total amount, difference total amount, alarm, and flow rate.

auxiliary word for ordinal numbers2Row: Display traffic.

Internal integrator

Positive total, negative total, and differential total.

output signal

Unidirectional analog output

Fully isolated, load≤600D．20mATime;

upper limit:0—21mAOptional, each levellmA；

Lower limit:0—21mAOptional, each level1mA；

Programming for forward and reverse flow output modes.

Bidirectional analog output

The lower limit is. perhaps4mA, other analog outputs in the same direction.

Bidirectional pulse output

Two outputs correspond to forward and reverse flow respectively,frequency0～800Hz,upper limit1~800Hzoptional,Each levelIHz；

Square wave or selected pulse width, selected upper limit of pulse width2．5SEach level1ms；

Passive isolation transistor switch output, capable of absorbing250mACurrent, withstand voltage35V.

Dual channel alarm output

Programmable alarm for high/low flow rate, air traffic control, fault status, positive/negative flow rate, analog over range, pulse over range, pulse small signal cutoff, with optional output polarity;

Transistor switch output with isolation protection,absorbable250mAThe current,pressure resistance35V.Not isolated from pulse output

digital communication

RS232，RS485，HART

Selection of lining

Lining material	Performance	Maximum medium temperature		scope of application
Lining material	Performance	—body type	separated
Polytetrafluoroethylene（F4	It is the most chemically stable plastic, capable of withstanding boiling hydrochloric acid, sulfuric acid, nitric acid, and aqua regia, as well as concentrated alkali and various organic solvents. Not resistant to corrosion from chlorine trifluoride, high-temperature chlorine trifluoride, high flow rate liquid fluorine, liquid oxygen, and auto oxygen.	70℃	100℃ 150℃Special order required	1Strong corrosive media such as concentrated acid and alkali. 2Sanitary media.
Perfluoroethylene propylene（F46	sameF4The wear resistance and negative pressure resistance are higher thanF4.		ditto
Polyfluoroethylene（Fs	The upper limit of applicable temperature is lower than that of polytetrafluoroethylene, but the cost is also lower.		80℃
neoprene	1Has excellent elasticity, high tensile strength, and good wear resistance.2Resistant to corrosion in general low concentration acid, alkali, and salt media, but not resistant to corrosion in oxidizing media.		80℃ 120℃Special order required	Water, sewage, and weakly abrasive slurry.
polyurethane	1Extremely strong wear resistance. 2Poor corrosion resistance.		80℃	Neutral strong abrasion slurry, coal slurry, mud

Selection of imported protective flanges and grounding flanges or grounding rings

Type of flange	Scope of application
Grounding flange or grounding ring	Suitable for non-conductive pipelines such as plastic pipes, but sensors with grounding electrodes do not require them.
Import protection flange	Choose when the medium has strong wear resistance.

Selection of electrodes

Electrode material	Corrosion resistance and wear resistance
stainless steel0Crl8Nil2M02Ti	Used for weakly corrosive media such as industrial water, domestic water, sewage, etc., suitable for industrial sectors such as petroleum, chemical, steel, as well as municipal and environmental protection fields.
Hastelloy alloyB	It has good corrosion resistance to all concentrations of hydrochloric acid below boiling point, as well as to non chlorinated acids, bases, and non oxidizing salt solutions such as sulfuric acid, phosphoric acid, hydrofluoric acid, and organic acids.
Hastelloy alloyC	Can withstand corrosion from non oxidizing acids such as nitric acid, mixed acids, or mixed media of chromic acid and sulfuric acid, as well as oxidative salts such as:Fe，"、、Cu"Corrosion caused by or containing other oxidants, such as hypochlorite solutions above room temperature and seawater corrosion
titanium	Capable of withstanding corrosion from seawater, various chlorides and hypochlorites, oxidizing acids including fuming sulfuric acid, organic acids, and alkalis. Not resistant to corrosion by relatively pure reducing acids such as sulfuric acid and hydrochloric acid, but if the acid contains oxidants such as nitric acidFc++CuWhen++, corrosion is greatly reduced.
tantalum	It has excellent corrosion resistance and is very similar to glass. Except for hydrofluoric acid, fuming sulfuric acid, and alkali, it can withstand almost all chemical media including boiling point hydrochloric acid, nitric acid, andl 50℃Corrosion caused by sulfuric acid. Dig in alkali; Corrosion resistance.
Platinum/titanium alloy	Can withstand almost all chemical media, but not suitable for aqua regia and ammonium salts.
Stainless steel coated with tungsten carbide	Used for non corrosive and highly abrasive media.
Note: Due to the wide variety of media and the complex factors such as temperature, concentration, and flow rate that affect their corrosiveness, this table is for reference only. Users should make their own choices based on the actual situation, and if necessary, conduct corrosion resistance tests on the selected materials, such as hanging plate tests.

Note: Range confirmation
The recommended flow rate for the measured medium of the general industrial intelligent anti-corrosion electromagnetic flowmeter is 2-4m/s. In special circumstances, the minimum flow rate should not be less than 0.2m/s and the maximum should not be greater than 8m/s. If the medium contains solid particles, the commonly used flow rate should be less than 3m/s to prevent excessive friction between the lining and the electrode; For viscous fluids, the flow velocity can be chosen to be greater than 2m/s. A higher flow velocity helps to automatically eliminate the effect of viscous substances attached to the electrode, which is beneficial for improving measurement accuracy.
Under the condition that the range Q has been determined, the size of the flowmeter diameter D can be determined based on the range of flow velocity V mentioned above, and its value can be calculated by the following formula:

Q=πD2V/4
Q: Flow rate (㎡/h) D: Inner diameter of pipeline V: Flow rate (m/h)

IntelligentAnti corrosion electromagnetic flowmeterThe range Q of the flow meter should be greater than the expected maximum flow value, and the normal flow value should be slightly greater than 50 of the full scale of the flow meter.

Reference flow range

calibermm	Flow rangem3/h	calibermm	Flow rangem3/h
φ10	0.16~2.5	φ400	250～4000
φ15	0.4~6	φ500	400～6000
φ20	0.6～12	φ600	600～10000
φ25	1.0～16	φ700	800～12000
φ32	1.6~25	φ800	1000～16000
φ40	2.5～40	φ900	1200～20000
φ50	4.0～60	φ1000	1600～25000
φ65	6.0～120	φ1200	2500～30000
φ80	10～160	φ1400	3000～50000
φ100	16～250	φ1600	3000～60000
φ125	25~400	φ1800	5000～60000
φ150	40～600	φ2000	6000～100000
φ200	60～1000	φ2200	1367.78～136778.4
φ250	100～1600	φ2400	1627.78～162777.6
φ300	160～2500	φ2600	1910.38～191037.6
φ350	200～3000

Model Selection Table

model	caliber
MS-LD	10~2600
		code	Installation form
		Y	Integrated
		F	split type
			code	Converter model
			ZA	rotundity
			ZB	Square (only applicable to split type)
				code	output signal
				I.4	4~20mA
				f	Frequency 1KHz
				Rs	Serial communication (485)
				C	control output
					Code name	Explosion proof requirements
					N	No explosion-proof
					EX	Explosion proof (only applicable to split type)
						code	medium temperature
						T1	≤65℃
						T2	≤120℃
						T3	≤ 180 ℃ (only applicable to split type)
							code	Lining material
							NE	Chloroprene rubber (≤ 65 ℃)
							PVC	Polyvinyl chloride (≤ 70 ℃)
							PTFE	Polytetrafluoroethylene (≤ 180 ℃)
								code	Electrode material
								316L	stainless steel
								HC	Hastelloy C
								HB	Hastelloy B
								Ti	titanium
								Ta	tantalum
								Pt	platinum

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