Table of Contents

Part I Pipeline Electromagnetic Flowmeter
1. Product Overview
2. Composition of Pipeline Electromagnetic Flowmeter Series 5
3.Table of Parameter Performance 6
4. Overall Dimensions of Product 12
5. Selection of Electromagnetic Flowmeter Sensor . 16
6. MFC Converter Selection 23
7.Selection of MFE-S Electromagnetic Flowmeter Converter .. 27
8.Selection of MFDElectromagneticFlowmeter 31
9.Selection of MFS SanitaryElectromagnetic Flowmeter 35
10.Selection of MFL Electromagnetic Flowmete 37
11. Selection of MFB Electromagnetic Flowmeter 40
12. Converter Wiring Diagram 45
13. Flange Dimensions · 54
14. Diameter, Velocity and Flow Comparison Table 57
Part II Plug-in ElectromagneticFlowmeter 61
1. Product Overview 61
2. Main Technical Parameters 63
3. Overall Dimensions 64
4.Selection of Sensors 66
5.Selection of Sensor InstallationPosition 68
6.Electrical Connection 68
7.Selection Table of MFP Plug-in Electromagnetic Flowmeter 69
'art IMI Specification and Selection of Accessories .· 70
1. FMS-1 Velocity Analog Signal Generator. 70
2.Measuring Range of MF Electromagnetic Flowmeter· 72
Specification Sheet of Bolts for Electromagnetic FlowmeterSensor (Flange Type).. 73
Code Table for High-end Intelligent Accessories 74
Reference Table for AnticorrosiveMaterials 75
Ordering Consultation Form. 79

Part I Pipeline Electromagnetic Flowmeter

1.Product Overview

1.1 Product background

MF electromagnetic flowmeter is a highperformance flowmeter developed by Chongqing Chuanyi Automation Co., Ltd. by integrating the world's advanced forward design concept and automatic intelligent manufacturing technology.With more than 300,000 sets of production and more than 20 years of application experience,high-reliability electronic modular design, more than 20 core invention patents and 8 international certifications, and calibration by the calibration laboratory (CNAS L6467） recognized by China National Accreditation Service for Conformity Assessment and intelligent manufacturing technology, the high precision, high stability and consistency of the product are ensured.The product has complete intelligent diagnosis,simulation,monitoring,local configuration and various communication functions, complete specifications of wetted part materials,special signal processing modes for different working conditions,and high-index electromagnetic compatibility characteristics, etc., and has been widely used in electric power, metallurgy, chemical industry, coal chemical industry, petroleum, petrochemical industry, municipal administration,environmental protection, food processing, medicine, building materials, light industry and other industries.

Intelligent flow meter production line L01

Intelligent flow meter production line L02

Intelligent flow meter production line L03

1.2 Scope of application

Electromagnetic flowmeter is composed of sensor andconverter,andworksbasedonFaraday'slawof electromagnetic induction.The product has almost no pressure loss, and the measurement is not affected by the changes of fluid density, viscosity, temperature,pressure and conductivity, and the range ratio is large. Therefore, it is the most ideal instrument for measuring the volume flow of conductive liquid.

1.3 Working principle

The measurement principle of electromagnetic flowmeter sensor is based on the Faraday's law of electromagnetic induction.One pair of detection electrodes are installed on the tube walls perpendicular to the axis of the measuring tube and the line of the magnetic field. When the conductive liquid moves along the axis of the measuring tube, the induced potential is generated as the conductive liquid cuts the magnetic line. The induced potential is detected by two electrodes on the measuring tube. The potential value is:

E=KBVD

Where:E -Induced potential K - Instrument constant B -Magnetic induction intensity -Average flow velocity in the cross section of measuring tube D - Inside diameter of measuring tube

During flow measurement, the fluid will flow through the magnetic field perpendicular to theflow direction.The flowing of conductive fluid inducts a potential directly proportional to the average flow velocity. Therefore, the measured flowing liquid is required to have the conductivity above the minimum limit. The induced voltage signal is detected by two electrodes and sent to the converter through a cable. After signal processing and related operation, the cumulative flow and instantaneous flow are shown on the display of the converter.

1.4 Instrument Characteristics

1) There is no choked flow and moving parts in the measuring tube,so no additional energy loss and blockage will be caused, and the energy-saving effect is remarkable, especially suitable for the measurement of liquid-solid two-phase flow such as sewage, mud, ore pulp, coal water slurry and pulp.

2) Only the lining and electrode are in contact with the measured medium.As long as the lining and electrode materials are reasonably selected,good corrosion resistance and wear resistance canbe achieved. Therefore, various chemical solutions such as strong acid and strong alkali can be measured.

3) The installation requirements are low, with only 5D for the front straight pipe section and 2D for the rear straight pipe section (D is the internal diameter of the selected instrument).

4) The measurement accuracy is high, up to 12% of the indicated value, and the flow in the forward/reverse directions can be measured.

5)Theinstrument has a variety of excitation modes, is not easily disturbed by power frequency and fluid noise, and works stably and reliably.

6)）The power consumption of the instrument is small, less than 15VA.

7) The converter has good interchangeability, and the accuracy can be achieved without re-calibrating the real flow.

8) The measuring range is wide, up to 1500: 1. 9) The electrode has a unique double sealing mode of conical surface seal and line seal to ensure no leakage. 10） The EMC (electromagnetic compatibility) index of flowmeter meets the requirements of IEC61326-1 standard. 11)The input impedance of the converter is greater than 1012 ohms, to effectively prevent the influence of scaling on the sensor and suitable for measuring conductivity media {>=}2\upmuS/cm 12） The functions of self-diagnosis, alarm and output, such as empty pipe detection, excitation drive alarm and storage error, are provided. 13) Explosion-proof mark: Exia/db eb IIc T4\~T6 Ga/Gb

1.5 Notes for Ordering

Please read this document before ordering, understand the model and coding regulations of this product, and determine the model and specifications as needed. If necessary, the following requirements are also indicated:

1)Parameters required to be set before the product
leaves the factory, such as the upper limit of flow range
or the corresponding upper limit of flow rate; 2)Pipeline size (outer diameter/wall thickness of
pipeline) is provided if a companion flange is required; 3)Protection grade of IP68 should be considered
when immersion for use is required 4) For plastic or plastic-lined pipes, grounding ring
or grounding electrode must be selected (the medium or
pipeline is prohibited from being charged); 5）Products with protection grade above IP65
shouldbeselectedforoutdoorinstallationwithout
protective box; 6) Other special requirements.

2. Composition of Pipeline

2.1 Conventional application series of MF electromagnetic flowmeter

Application of MFC type in general occasions

Application of MFE type I n process control occasions

2.2 Special applicationseries of MFelectromagneticflowmeter

3.TableofParameterPerformance

4. Overall Dimensions of Product

4.1 Converter size

4.1.1IP65convertersize

bracket, and the standard material of the bracket is 304. Please note when ordering other materials)

4.2 Sensor size

4.2.1 Sensor size (pipeline type)

4.2.2 Sensor size (clamping type)

4.2.3 Sanitary type size

5. Selection of Electromagnetic

5.1Selection of instrumentdiameter

5.1.1Selectionofsensordiameter

The selected instrument diameter is not necessarily the same as the diameter of the connecting pipe, but should be determined according to the flow rate of the pipeline.

Generally speaking, the pipeline flow rate of 5m/s ~5m/s is the economic flow rate,and the sensor diameter is the same as the pipe diameter. Unless the medium is less abrasive and made of wear-resistant materials, it is recommended that the long-term working flow rate should not exceed 7m/s

For fluids containing substances that are easy to adhere, precipitate and scale,it is suggested that the commonflowrate shouldbenotlessthan 2m/s andit is better to increase it to 3m/s~4m/s or above, so as to play the role of self-cleaning and preventing adhesion and precipitation.

For fluids with strong abrasion such as ore pulp, the common flow rate should belower than 3m/s to reduce the abrasion to the lining and electrode.

When measuring low conductivity medium with conductivityof 2\upmuS/cm~10\upmuS/cm lowflowrate 5m/s~ 1~m/s ）should be selected as much as possible,because the flow noise will increase with the increase of flow rate, and the output will shake.

(1) The instrument diameter is <=300 , and the accuracy class can reach 2; Diameter is >300 and accuracy class is 5 (if better than 5, please negotiate with the company to order)

(2)For the electionof instrument diameter, pleasereferto theFlowRangeTablebelow andtheDiameter,FlowRat and Flow ComparisonTable in the appendix.

5.1.2 The diameter of the selected sensor is the same as that of theconnectedprocess pipeline

The diameter of the selected sensor is the same as that of the connected process pipeline,which is convenient to install.

5.1.3Thediameter oftheselectedsensoris differentfrom that of the connected process pipeline

This option is applicable in the following situations:

A. The flow rate in the pipeline is low, and the process flow is relatively stable.In order to meet the requirements of the instrument for the flow rate range, the flow rate is locally increased in the instrument part, thediameterofthesensorisselectedtobesmallerthan that of the process pipeline, and a reducer is added before and after the sensor.

B.Considering the price,for large-diameter electromagnetic flowmeter, the larger the diameter, the higher the price. When the flow rate in the pipeline is low and the process parameters are stable, the sensor withsmaller diameter canbe selected,whichcannot only make the instrument run in better working condition,but also reduce the purchase cost.

5.1.4 Precautions for installing reducer

In order not to affect the distribution of flow rate field too much and the measurement accuracy of the instrument, the central cone angle a of the reducer is not greater than 15° ,so that the reducer can be regarded as a part of the straight pipe section.

5.1.5Selectionofdiametercode

Theexpressionof thediameterof MF electromagnetic flowmeter is three digits: the first and second digits of DN and the number of zeros following the first two digits (unit: mm).

For example,code 100 indicates a diameter of 10mm ;code 101indicates a diameter of 100mm ；code 102 indicates a diameter of 1000\mm .DN2.5 diameter code is special, the expression is 025，and DN125 expression is 121.

5.2 Selection of lining materials

The lining material is selected according to the corrosiveness, abrasion and temperature of the medium to be tested. The applicable performance of common lining materials is shown in the following table:

5.3Selectionofelectrodematerials

The selection of electrode materials should be determined by the user according to the corrosiveness of the measured medium, and the user can refer to the relevant anti-corrosion manual.

5.4SelectionofIPGrade

According to the national standard GB4208, the shell IP grade of instruments can be divided into the following categories:

IP65: Water spraying type allows the faucet to spray water on the instrument from any direction, with the water spraying pressure of 30{kPa} thewater output of 12.5L/Min and the nozzle distance of 3m from the instrument.

IP67:Immersed instrument can be completely immersed in water (1m underwater) in a short time,with duration of 30min ，

IP68:Submersible type can work underwater for a long time (5m underwater),and the maximum depth shall be negotiated with the manufacturer.

IP grade shall be selected according to the above requirements and actual conditions of instruments.

When outdoor protective box is not used, the measuringinstrumentwithIP65oraboveshouldbe installed in the shade.

Avoid direct sunlight, and pay special attention when using in hot areas.

Avoiddirectexposuretotheclimate.

If the instrument is installed under the ground andoftenflooded,oriftheinstrumentisinstalledon the ground with high air humidity or exposed to steam, it is advisable to choose the split type, sensor IP68 and converter in the protective box orindoors.

5.5SelectionofCable

The connectingcablebetween the sensor and the converterisaspecialmulti-shieldedcable.Thecable length in the model & specification table refers to this cable, and its length is related to the conductivity of the medium.The maximumlength is 5 times of the minimum conductivity, but generally does not exceed 100m (if the length is exceeded, it will be supplied after negotiation with the manufacturer). The connecting cable between the sensor and the converter generally requires iron pipe for protection when it is installed on site

Cable connection is not allowed.In case of accidental breakage or extension, please purchase a special junction box with sealant to extend the cable.

5.6 Selection of Flange

Except in special circumstances,metric flanges should be generally selected, and the companion flanges are also made in metric system.Flanges meet the national standard GB9119,and common specifications can be found in Appendix 1. Special orders can be made for all special flanges and those exceeding the instrument pressure rating. When ordering, if companion flanges need to be installed,the instrument connecting pipe size (outer diameter \* wall thickness) should be provided.

5.7Selectionofjunctionboxseal

The outgoing line sealing method of junction box is \mathbf{M}2\mathbf{0}^{*}\mathbf{1}.5 sealing sleeve to seal the cable.The commonly used \mathbf{M}2\mathbf{0}^{*}\mathbf{1}.5 sealing sleeve has the same codes1and5intheselectiontable,butthedifference is thatcode1 requires thecable tobe connected and filled with sealant before the product leaves the factory, while code 5 requires the user to complete these tasks.

5.8 Selection of earthing ring

As the induced signal voltage of electromagnetic flowmeter is very small and susceptible to external noise or other electromagnetic signals, an earthing ring is used. The function of the earthing ring is to form a space shielding the external interference by earthing the shell of theflowmeter and hence increase themeasurement accuracy. (If users use non-metallic pipes, they must install earthing rings, which should be indicated when ordering, and the earthing ring option should be selected). Even for metal pipes, the instrument should be reliably and independently earthed with earthing resistanceless than10 ohms.Theinstallation methods of the instrument under different conditions are shown as follows:

B.Earthing of plastic pipe

5.9 Determination of Operating Environment

Working environment refers totheenvironment around the instrument,which can be divided into general workplaces and dangerous workplaces.

Generalworkplacerefers toa safeplacewhere there is no combustible gas or explosive substances, and the working environment temperature is below 65°C ， and the upper limit of medium temperature is divided into three types: 80°C ， 140°C and 180°C .The instrument can be integrated or split (if the medium temperature is higher than 80°C , the split type is recommended).

Dangerous place refers to a place where there are combustible gases and explosive substances. The working environment temperature should not be higher than 60°C ,and the medium temperature should not be higher than 80~130°C (depending on the explosionproof temperature grade, see the type spectrum for details).

Theworking temperatureof theconverter should notbehigher than 65°C

The shell and flange of the sensor body are welded integrally,which can meet the working environment mentioned above.

5.10 Pressure - temperature relationship

The following pressure/temperature curves are for all pressure-bearing parts of the instrument, not just for process connections.

Process connection material: Carbon steel

Process connection material: 316L

6.MFCConverterSelection

6.1 Characteristics and scope of application

The sensor of MFC electromagnetic flowmeter adopts magneticfield equalization technology toreduce the requirement of straight pipe section, and the electrode has a unique double sealing mode of conical surface seal and line seal, and its design life is 30 years. The converter adopts low frequency excitation technology to ensure zero stability,high impedance circuit technology to ensure low conductivity measurement, DSP digital processing technology to achieve quick response, built-in empty pipe state monitoring to ensure empty pipe locking, and excitation drive monitoring to achieve self-diagnosis. It is very suitable for the measurement of single-phase conductive liquid media.

6.2 Brief introduction to MFC converter performance

Display

Two-line display: LCD can realize digital or letter display of flow, total and alarm information, etc. The display content is optional, and some display contents can be switched by using magnetic buttons.

Three-line display: LCD can realize the digital or character display of flow, total and alarm information, as well as the display of percentage flow bar chart and alarm prompt symbol, and some display contents can be switched by using magnetic buttons or film buttons.

\blacktriangle Internalcumulativecalculator

The total forward flow, the total reverse flow and thetotal net flowcanbe calculatedby9-bit accumulation.

Programming

If data is provided to the company when ordering, these related data have been compiled in the converter before the product leaves the factory. If necessary, the converter can be reprogrammed by using the local manual terminal or instrument buttons (three-line display) without affecting the technical performance of the converter. Engineering units can be chosen very flexibly, such as suitable flow units and total units.

Programming options: PC, SIC handheld terminal, film button, magnetic button, and button programming without opening the cover.

▲Power supply

AC (100~230) 1 ±15%V_{:} ，47Hz\~440Hz,maximum power consumption is 15VA;

DC11V\~40V, maximum power consumption is 15VA;

Output signal

1.Analog(standardoutput）active output (maximum load resistance is 500\Omega ，including cable resistance)

2. Dual analog active output (optional) is the same as 1, but there are separate outputs for forward flow and reverse flow, or it can be programmed as two paths of forward flow or reverse flow.

3. Double pulse (standard output) is 0Hz~800Hz square wave. Parameters such as pulse frequency and cutoff frequency are safe and programmable.The frequency range can be set from 1\ Hz to {800}~Hz When the transistor with pulse output is turned on, the current should be no more than 500mA and the open circuit voltage should be less than 50V. (Note: The pulse needs to be connected with a current-limiting resistor, and it is a passive output)

4. Double alarm (standard output) can output alarm informationsuch as abnormalexcitationcoil, forward/reverse flow, small signal excision, empty pipe, high/low flow limit, analog signal overrun and pulse signal overrun. When the transistor with alarm output is turned on,the current should be no more than 500mA and the open circuit voltage should be less than 50~V. (Note: Not isolated from pulse output)

5.RS232 communication can read and write some parameters through the super terminal or Chuanyi manual operator,and its interface is DB9serial connector (male).

Input signal

Contact input:The contact isolated from the outsideisclosedandthecumulativecalculatoris cleared. (Note: Not isolated from pulse output)

Isolation

The isolation voltage between analog signal, pulse signal and alarm signal and ground is DC 500V.

Protection

Integrated converter/sensor IP65/IP67， split converter/sensorIP65/IP67,sensorIP65/IP67/IP68.

\blacktriangle Ambient temperature

Working temperature: {\bf-40°C}~ 65°C When the temperature is lower than -20°C ,the display unit may not work normally

Storage temperature: -25°C~+60°C

\blacktriangle Configuration

The configuration is stored in a non-volatile memory (generally it can be saved for 10 years). The user's own preset value can be changed.

Self-diagnosis

The converter can confirm whether the hardware is normal or not, and can diagnose faults, such as coil drive faults.

Flow setting

It is equivalent to the measured flow corresponding to themaximum flow rate <=10m/s which can be changed by users according to their own needs.

\blacktriangle Interchangeability

The converter can be used with MFC sensors of various diameters.

The converter can be configured in the field. Replacing the converter will not

Affect the characteristics of the system.

\blacktriangle Outgoing line box seal

\mathbf{M}20^{*}1.5 sealing sleeve. Descriptions shall be provided when the user has special requirements.

\blacktriangle Time constant

All programmablefrom1 second to120seconds.

\blacktriangle Display direction

According to the field working conditions,the instrument can be more convenient to observe and use by selecting the display direction (that is, horizontal or vertical).

Display mode

Three-line display

6.3SelectiontableofMFCelectromagneticflowmeter

The MFC electromagnetic flowmeter consists ofasensor and a converter and its modelis expressed as follows:

7.SelectionofMFE-SElectromagnetic

7.1 Characteristics and scope of application

The MFE-S electromagnetic flowmeter converter adopts unique signal processing technology and highperformance microprocessor,which improves the data processing ability and complex communication ability while the system runs more stably and reliably.The unique sensor excitation mode and signal processing system can eliminate noise and otherinterference signals and ensure the accuracy and stability of measuring flow. It is very suitable for high-precision measurement and measurement under complex working conditions (pulsating flow, quick response, slight impurities, explosion-proof) and digital communication.

7.2Brief introductionto theperformance of MFE-S electromagnetic flowmeter converter

Display (optional content)

Three-line display: LCD can realize the digital or character display of flow, total and alarm information,as well as the display of percentage flow bar chart and alarm prompt symbol, and some display contents can be switched by using magnetic buttons or film buttons.

\blacktriangle Internal cumulative calculator

The total forward flow, the total reverse flow and the total net flow can be calculated by 9-bit accumulation.

Programming

If data is provided to the company when ordering, these related data have been compiled in the converter before the product leaves the factory. If necessary, the converter can be reprogrammed by using the local manual terminal or instrument buttons (three-line display）without affecting the technical performance of the converter. Engineering units can be chosen very flexibly, such as suitable flow units and total units.

Programming options:

1. Instrument buttons 1.RS232 communication (short-distance communication) 2.RS485 communication

3.HART communication

4.Profibus-PA communication

5.Profibus-DPcommunication

6.FF communication

Power supply: There are two models to choose from

AC 100~230 0 ±15%V, 47Hz\~440Hz,maximum power consumption is 15VA;

DC11V\~40V, maximum power consumption is 15VA;

Output

1.Analog (standard output）active output (maximum load resistance is 500\Omega ，including cable resistance)

2. Dual analog active output (optional) is the same as 1, but there are separate outputs for forward flow and reverse flow, or it can be programmed as two paths of forward flow or reverse flow.

3. Double pulse (standard output) is 0Hz~800Hz square wave or fixed pulse width signal.Parameters such as pulse frequency and cutoff frequency are safe and programmable. The frequency range can be set from 1 Hz to {500}~Hz When the transistor with pulse output is turned on, the current should be no more than 150mA and the open circuit voltage should be less than 50~V. (Note: The pulse needs to be connected with a currentlimiting resistor, and it is a passive output)

4. Double alarm (standard output) can output alarm information such as abnormal excitation coil, forward/reverse flow, small signal excision, empty pipe, high/low flow limit, analog signal overrun and pulse signal overrun.When the transistor with alarm output is turned on, the current should be no more than 500mA and the open circuit voltage should be less than 50~V. (Note: Not isolated from pulse output)

5.RS232 communication can read and write some parameters through the super terminal program or Chuanyi manual operator, and its interface is DB9 serial connector (male).

6.RS485 (optional) communication interface.
7.HART(optional)communicationinterface.
8.Profibus-PA(optional) communication interface.
8. Profibus-DP (optional) communication interface.
1 FF (optional) communication interface.

▲ Input

Contact input: The contact isolated from the outside is closed and the cumulative calculator is cleared. (Note: Not isolated from pulse and alarm)

\blacktriangle Isolation

The isolation voltage between analog signal, pulse signal and alarm signal and ground is DC 500V.

Temperature

Working temperature: -40°C~+65°C .Whenthe temperature is lower than -20°C ,the display unit may not work normally

Storage temperature: -25°C~+60°C

Protection

Integrated machine IP65/IP67，split converter IP65/IP67,sensor IP65/IP67/IP68.

Configuration

The configuration is stored in a non-volatile memory (generally it can be saved for 10 years). The user's own preset value can be changed.

Self-diagnosis

The converter can confirm whether the hardware is normal or not, and can diagnose faults, such as excitation drive and system storage fault.

Flow rate setting

It is equivalent to the flow measurement range of the maximum flow rate {<=}(10m/s) percentage, which can be changed.

\blacktriangle Interchangeability

The converter can be used with MFE-S sensors of various diameters.

The converter can be configured in the field. Replacing the converter will not affect the characteristics of the system.

\blacktriangle Outgoing line box seal

\mathbf{M}20^{*}1.5 sealing sleeve.Descriptions shall be provided when the user has special requirements.

\blacktriangle Time constant

All programmable from 1 second to 120 seconds.

\blacktriangle Display direction

According to the field working conditions,the instrument can be more convenient to observe and use by selecting the display direction (that is,horizontal or vertical).

Explosion-proof performance (please refer to GB3836.1 and GB 12476.1 for detailed explosion-proof parameters)

Explosion-proof grade

Display mode: Three-line display (circular and square three-line display)

7.3 Selection table of MFE-S electromagnetic flowmeter

TheMFE-Selectromagneticflowmeterconsistsofasensorandaconverter anditsmodelisexpresedasfollows:

8.SelectionofMFDElectromagneticFlowmeter

8.1 Characteristics and scope of application

MFD electromagnetic flowmeter is a special electromagnetic flowmeter for measuring pulp, mud, ore pulp, coal water slurry and other slurry media.The product adopts multi-frequency excitation mode,the response speed is >=8S ,the minimum conductivity is as high as 2\ensuremath{\upmu\:S/cm} ，and the damping coefficient is adaptive. The unique noise processing technology and digital filtering technology can filter the interference caused by dirt attached to pipes and electrodes, effectively improving the signal resistance of slurry noise, especially suitable for the measurement of liquidsolid two-phase flows, such as pulp, mud, ore pulp and coal water slurry. The mass concentration ratio of pulp can reach 10% , the solid content of ore pulp can reach 70% , and the change range is less than 5% ，

8.2Brief introduction to theperformance of MFD electromagnetic flowmeter converter

Display (optional content)

Two-line display: LCD can realize digital or letter display of flow, total and alarm information,etc.The display content is optional, and some display contents can be switched by using magnetic buttons or film buttons.

Three-line display: LCD can realize the digital or character display of flow,total and alarm information, as well as the display of percentage flow bar chart and alarm prompt symbol, and some display contents can be switched by using magnetic buttons or film buttons.

\blacktriangle Internal cumulative calculator

The total forward flow, the total reverse flow and thetotalnet flowcanbecalculatedby9-bit accumulation.

Programming

If data is provided to the company when ordering, these related data have been compiled in the converter before the product leaves the factory. If necessary, the converter can be reprogrammed by using theinstrument buttons without affecting the technical performance of the converter. Engineering units can be chosen very flexibly, such as suitable flow units and total units.

Programming options:

1. Instrument buttons 1.RS232 communication (short-distance communication) 2.RS485 communication 3.HART communication 4.Profibus-PA communication 5.Profibus-DP communication 6.FF communication

Power supply: There are two models to choose from

AC (100\~230) ±15%V_{:} .47Hz\~440Hz,maximum power consumption is 15VA;

DC11V\~40V, maximum power consumption is 15VA;

Output

1.Analog(standard output）active output (maximum load resistance is 500\Omega ，including cable resistance)

2. The pulse (standard output) is a square wave signal with a fixed pulse width of 0~{Hz} to 800~Hz Parameters such as pulse frequency and cutoff frequency are safe and programmable.When the transistor with pulse output is turned on, the current should be no more than 500mA and the open circuit voltage should be less than 50V.

3.Alarm (standard output) can output alarm informationsuch as abnormal excitation coil, forward/reverse flow, small signal excision, empty pipe, high/low flow limit, analog signal overrun and pulse signal overrun.When the transistor with alarm output is turned on, the current should be no more than 500mA and the open circuit voltage should be less than 50~V. (Note: Not isolated from pulse output)

4.RS485 (optional) communication interface.
5. HART (optional) communication interface.
6. Profibus-PA (optional) communication interface.
7. Profibus-DP (optional) communication interface.
8. FF (optional) communication interface.

\blacktriangle Input

Contact input:The contact isolated from the outside is closed and the cumulative calculator is cleared. (Note: Not isolated from pulse and alarm)

\blacktriangle Isolation

The isolation voltage between analog signal, pulse signal and alarm signal and ground is DC 500V.

Temperature

Working temperature: -40°C~+65°C .When the temperature is lower than -20°C , the display unit may not work normally

Storage temperature: -25°C~+65°C

Protection

Integrated machine IP65/IP67，split converter IP65/IP67, sensor IP65/IP67/IP68.

Configuration

The configuration is stored in a non-volatile memory (generally it can be saved for 10 years).

The user's own preset value can be changed.

\blacktriangle Self-diagnosis

The converter can confirm whether the hardware is normal or not, and can diagnose faults. Such as coil drive faults.

\blacktriangle Flow rate setting It is equivalent to the flow measurement range of the maximum flow rate {<=}(10m/s) percentage, which can be changed.

\blacktriangle Interchangeability

The converter can be used with MFD sensors of various diameters.

The converter can be configured in the field. Replacing the converter will not affect the characteristics of the system.

\blacktriangle Outgoing line box is sealed with \mathbf{M}20^{*}1.5 sealing sleeve.Descriptions shall be provided when the user has special requirements.

\blacktriangle Time constant

All programmablefrom1 second to120seconds.

\blacktriangle Display direction

Integrated display direction: When the integrated electromagnetic flowmeter is selected,the display direction of theconverter will beinconvenient to observe due to the pipeline direction,so it can be satisfied by selecting the display direction (i.e. horizontal or vertical).

Explosion-proof grade

Display mode: Two-line display and three-line display are optional. See the following diagram (square three-line and L-shaped two-line diagrams)

8.3 Selection table of MFD slurry electromagnetic flowmeter

The MFD slurryelectrmagneticflowmeter consistsofa sensor andaconverter and its modelis expressed as follows:

9.Selection ofMFSSanitary

9.1 Product characteristics and scope of application

Sanitary electromagnetic flowmeter is mainly used for flow measurement in food, beverage and pharmaceutical industries.The contact surface between MFS sanitary electromagnetic flowmeter and medium is made of materials that meet the sanitarydesign of EHEDG in Europe. The sensor is suitable for CIP/SIP cleaning, and its inner diameter matches the process pipeline, so that the sensor can be seamlessly connected with the process pipeline. It can be used for sanitary process connection of DIND32676 or ISO2852 standard. All stainless steel bodies are fully welded to prevent internal components and wiring from being damaged by high-pressure steam, water and sanitary chemicals.

9.2 Brief introduction to the performance of MFS sanitary electromagnetic flowmeter

Sensor material:

Non-wetted part material: Shell: 304 stainless steel; Junction box: Cast aluminum, coated with PQ0418 (optional 304 stainless steel). Wetted part material: Lining:PFA {Ra}=8 );Electrode 316L( Ra{=}4 0

\blacktriangle Process connectionmaterials

Process connection joint material: 316L;Joint sealinggasket material:Siliconerubber

\blacktriangle Diameter range:DN25\~DN100

\blacktriangle Accuracy class: 12% or ±5% of the indicated
value \blacktriangle Pressure grade: 1.0{MPa} \blacktriangle Conductivity: {>=}5~\upmu~S/cm \blacktriangle Medium temperature: -10°C~150°C \blacktriangle Ambient temperature: {}_{-25°C~65°C} \blacktriangle Protection grade: IP68 (sensor) \blacktriangle Ambient temperature impact: <±~1%/10°Cor<±
25/10°C \blacktriangle Reproductivity and repeatability: <=±1% or <=±25 \blacktriangle Electrical connection (sensor): G1/2 or NPT1/2

9.3 Selection table of MFS sanitary electromagnetic flowmeter

The sanitaryelectromagneticflowmeterconsists ofasensor and aconverter and itsmodel is expressedas follows:

bhlfadst c.The standard outut is4\~20A+pulse oupu.

10.SelectionofMFLElectromagnetic

10.1 Characteristics and scope of application

The MFL two-wire electromagnetic flowmeter is a kind of electromagnetic flowmeter with high reliability and low power consumption.The two-wire electromagnetic flowmeter with patented frequency conversion excitation technology and magnetic field processingtechnology canmeasure themediumwith conductivity above 10\ensuremath{\upmu\:S/cm} ,and at the same time,the diameter range of measuring ability is widened to DN 2.5-DN 600 mm. The power consumption of this product is much less than that of ordinary electromagnetic flowmeters when the measuring ability is equivalent to that of four-wire system.The installation form of the product is also very simple, and the wiring requirements of power supply and cable tray are not high. The standard HART protocol can adjust the parameters remotely, which can greatly reduce the installation and maintenance costsfor customers.Itisapreferred flowmeter for measuring single-phase media with conventional flow rate.

10.2Brief introduction totheperformance of MFL electromagnetic flowmeter converter

Display

Digital LCD, 128x64 -point display screen. \blacktriangle Internal cumulative calculator The total can realize 9-bit cumulative calculation

\blacktriangle Programming

If you provide the data to our company when ordering, we will prepare the internal program for the instrumentconverterbeforeitleavesthefactory.If necessary,the converter can be programmed by using the local manual terminal on the site without affecting the technicalperformanceof theconverter.Theconverter can be programmed according to different engineering units.For example,the flow and total can be expressed according to different units.

Programming options: HART manual operator, magnetic button programming.

Power supply

Voltage:16.5\~40VDC,minimum starting current 3.8mA,maximum power consumption 6W (24VDC)

1. The supply voltage indicates the required voltage between the power supplyterminalandthe electromagnetic flowmeter.

2. Connecting to the commercial AC power supply will damage the flowmeter.Please make sure to use the DC battery within the predetermined range.

3.It can be connected with almost all distribution boards, signal modulator cards and IO modules except some equipment.

▲ Current output status (fuse) when the sy gives an alarm Upper limit: 110%{>=}21.6m A DC (standard) Lower limit: -1.25%{<=}3.8mA DC Empty pipe alarm {\le}3.8mA DC system Unified alarm >=21.61 mADC \blacktriangle Output signal Current output: 4-20mA Dc,two-wire system Output range:3.8\~21.6mA Digital output: Open collector Contact grade:30VDC,12mADC Low level: 0-2VDC (Fig. 1)

Fig.1 High and Low Levels (Transistor Contact Output)

Communication requirements Communication signal: HART communication protocol (loaded on 4- 20mADC signal) Communicationline conditions: Supply voltage: 21.5\~40VDC Load impedance: 250~600\Omega (Fig. 2)

Fig.2RelationshipbetweenSupplyVoltage and External Load Impedance

Calculation formula of resistance of power cable R=9/{L{S}} The diameter and length of the power cable must meet the minimum working voltage requirements of the converter

Data security in case of power down With the power down storage function, data is preserved for 10 years

Zero setting function

By using the parameter setting, zero setting is carried out to ensure that the output is 0% at zero flow. When the measuring tube is full of measuring fluid and the valve is closed to completely stop the fluid, zero setting is carried out.

Cumulative value display function

According to the setting of the cumulative pulse ratio,the flow is accumulated according to the corresponding pulse.In the forward and reverse flow measurement function,the accumulated value in the flow direction (forward or reverse),the flow direction and its unit product are displayed on the display.

\blacktriangle Damping time constant

The time constant can be set to 1.0~s~ to 200~s~ When the damping time is short, the output will fluctuate

Pulse output

According to the setting of pulse rate,the calibrated pulses can be output one by one.Pulse width: 50% duty cycle output rate can be selected at a speed range of001 to 200Hz ：

Forward and reverse flow measurement functions

The forward and reverse flow canbe measured.The reverse flow measurement can be confirmed on the display through the status output.

\blacktriangle Alarmselectionfunction

Alarmisdividedintosystemalarm(hardware failure),setting alarm and warning.Users can choose whether to give process alarms and set alarms for each item. The current output of the alarm can be selected from the following settings.

\blacktriangle Repeatability ±16% \blacktriangle Insulation resistance Insulation impedance >100MQ Test voltage 1000VDC \blacktriangle Insulation strength The test voltage is 100oVAC, and the test time is 1 min.Standard {\le}20mA

Explosion-proof grade

10.3 Selection table of MFL electromagnetic flowmeter

The MFLelectromagnetic flowmeter consists ofa sensor and aconverter, and its model is expressed as follows:

11.Selection of MFBElectromagnetid Flowmeter

11.1 Characteristics and scope of application

MFB battery-powered electromagnetic flowmeter converteris powered byinternal batterywithout external power supply,which is suitable for working conditions where the field power grid cannot reach and the power grid is difficult to lay, especially for monitoring, metering and settlement of tap water supply system. The MFBbattery-powered electromagnetic flowmeter converter adopts ultra-low power consumption circuit technology to design efficient and reliable excitation and signal processing circuits to realize the measurement function, so as to ensure the high reliability and stability of the converter. At the same time,efficient system management technology is adopted to greatly reduce the system power consumption,save the power supply cost and realize accurate measurement.

11.2 Brief introduction to the performance of MFB battery-powered electromagnetic flowmeter converter

Display

Three-line display: The display is a 120-segment display that can show flow rate,flow, total, temperature, pressure, alarm message, and battery level, etc. The display content can be switched by magnetic button switch without identity authentication.

\blacktriangle Internalcumulative calculator

The total forward flow, the total reverse flow and thetotal net flowcan becalculated by8-bit accumulation.

Programming

If data is provided to the company when ordering, these related data have been compiled in the converter before the product leaves the factory. If necessary, the converter can be reprogrammed by using theinstrument buttons without affecting the technical performance of the converter. Engineering units can be chosen very flexibly, such as suitable flow units and total units.

Programming options:

1. Instrument buttons
2.RS485 communication

Power supply:

Standard configuration: 3.6V lithium battery

Optional configuration: 220VAC+3.6V lithium battery, 24VDC+3.6V lithium battery

Battery life:

More than 6 years (battery powered only)

Note: In harsh environment, the battery life may be less than 6 years, and the reasons that affect the battery life include temperature, output settings, and status output, etc.

Output:

1. The pulse output (standard output) is a square wave signal with a fixed pulse width of 0~Hz to 400~Hz Parameters such as pulse frequency and cutoff frequency are safe and programmable. When the transistor with pulse output is turned on, the current should be no more than 150mA and the open circuit voltage should be less than 35V.

2.RS485 (optional) communication interface. 3. NB-Iot (China Telecom)
4. NB-Iot (China Mobile)
Temperature

Working temperature: {\bf-40°C}~ 65°C When the temperature exceeds -20-+60°C the display unit may not work normally

Storage temperature: 0°C~60°C

Protection

Integrated machine IP67/IP68, split converter IP68, sensorIP65/IP67/IP68

Configuration

Instrument parameters and measurement data are stored in non-volatile memory (generally, they can be kept for 10 years).For the use requirements of measurement settlement, the instrument has two devices, namely mechanical seal and electronic seal,which can effectively prevent the parameters that affect the determination of measurement results from being modified by unauthorized persons.

Self-diagnosis

The converter can perform the following diagnostic functions: empty pipe, sensor failure (excitation open circuit) and battery power consumption.

\blacktriangle Flow rate setting

It is equivalent to the flow measurement range of the maximum flow rate {<=}(10m/s) percentage, which can be changed.

\blacktriangle Interchangeability

The converter can be used with MFB sensors of various diameters.

The converter can be configured in the field. Replacing the converter will not affect the characteristics of the system.

Outgoing line seal

High-protection aviation connector and stainless steel connector (M20x1.5)

Time constant All programmablefrom1 second to120seconds.

Display mode

11.3SelectiontableofMFBelectromagneticflowmeter

heMFBelectromagneticflowmeterconsistsofasensorandaconverter,anditsmodelisexpressedasfollows:

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11.4 Technical characteristics of battery

1. Typical discharge curve at +25°C (median value)

2. Steady voltage curves under different discharge current and temperature conditions (in the stable stage of discharge)

3. Capacity curves under different temperature and current conditions (cut-off voltage is 2.oV)

4.Storage characteristics

As can be seen from the above pictures, under the irradiation of sunlight, the battery life will be reduced, so try to reduce direct sunlight when installing

Instructions for battery use:

The service life ofthe battery is affected by the temperature.When the ambient temperature is 25°C the service life of theMF-S electromagnetic cold watermetercanbe guaranteed formore than6years,but inharshenvironmental conditions highteratureorlwtmperature), thbaterycapacitywillbe reduced andtheervice lifewille ss than 6 years.

Description of battery level change:

Note:When theinstrument displays the symbol "\bigcup", it means that the batterylevelisinsufficient and thebattery needs to be replaced; otherwise, the measurement data will be missing. The battery must bereplaced by a professional who has been instructed by the manufacturer, or the product will be sent backto the manufacturer for replacement After replacement of the battery, the "accumulated flow" and'accumulated effective running time" stored in the instrument will not be lost.

12.Converter Wiring Diagram

12.1 Guidediagram of converter cable conductor

The cable diameter is 11.5mm±5mm

12.2 Electrical connection of MFC converter

Precautions
During connection,the following contents shall be noted: ·Theconnectionbetween thesensor and theconverter must becorrect andreliableensuring goodcontactando short circuit oropencircuit.
In order to ensure the insulation in the sensor junction box andprevent poorinsulationcaused byhumidity,cables shallnotbeconnectedoutdoorsinrainydays.
·Inorder toensure the tightness of the junctionbox,the screws onthe cableconnector and junctionbox should be tightened after theconnection is completed.
4-20mA output is in active mode,so do not add other powersupplies.

A.Frequency output wiring

Electromagneticcounterconnection

Telemetry,electronic counter,etc.

B. Alarm output wiring

C. Contact input wiring

D.Interface withPLC <br>PLC-Common-Ve

PLC-Common+Ve

F. Power supply wiring

Connection diagram of AC power supply (AC220V)

12.3ElectricalconnectionofMFEcircularconverter

A.The cable connection between the integrated flowmeter sensor and the converter is completed by the manufacturer, and the cable between the split flowmeter sensor and the split converter is connected (the cable is provided by the manufacturer).The cable at the sensor has been connected and sealed when leaving the factory. See the figure below for the cable connection at the converter B.The power cord and other output signal lines should be connected by rubber sleeve with an outer diameter of 105mm (provided by users) C.The flowmeter cable guide diagram is shown on the right

The conduit can be heavy-gauge threaded pipe, seamless steel pipe and welded steel pipe conforming to GB/T 14823.1, and the joint between the conduit and the connector should have at least 5 threads