Related Manuals for AFLOWT MT Pro M Series
Summary of Contents for AFLOWT MT Pro M Series
- Page 1 ELECTROMAGNETIC FLOW METER AFLOWT MF Pro-×××M× Version “ ” OPERATION MANUAL ISO 9001:2015...
- Page 2 * * * Manufacturer quality management system is certified to ISO 9001:2015 * * * URL: http://www.aflowt.com...
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Page 3: Table Of Contents
TABLE OF CONTENTS INTRODUCTION ..................... 4 DESIGN VERSIONS ....................5 1. DESCRIPTION ....................6 1.1. Application ..................... 6 1.2. Specifications ..................7 1.3. Metrological specifications ..............8 1.4. Contents of the delivery package ............9 1.5. Design and operation ................10 1.5.1. -
Page 4: Introduction
This document covers “AFLOWT MF” Electromagnetic Flowmeter of “Pro-×××M×” model Pro-112MI, -122MI, -212MI, -222MI, -111MA, -121MA, -211MA, -221MA, -112MC, -122MC, -212MC, -222MC herein- after referred to as the flowmeter and contains information about its op- eration and design. Due to continuous improvement of the product policy actual flow- meter’s specifications may differ from the data specified in this manual. -
Page 5: Design Versions
DESIGN VERSIONS The design versions differ in form factor and functionality of the measuring block, pipe connection type (design of the flow channel), purpose with regard to medium (material of the electrodes and the liner material of the inner surface of the pipe channel). Product identification corresponding to the type of the measuring block: Pro - 1××M×... -
Page 6: Description
"AFLOWT MF" flowmeters can be used in a great variety of appli- cations in power industry, oil, gas and mining industries, municipal en- gineering as well as in iron and nonferrous, chemical, oil refining, cellu- lose and paper, food and other industries. -
Page 7: Specifications
1.2. Specifications 1.2.1. The maximum Q , and the minimum Q flowrate values of meas- ured average volumetric flowrates for various nominal diameters (DNs of the flowmeter’s flow channel) are given in Table 1. Table 1 Name of the Value Parameter DN, mm 10.0... -
Page 8: Metrological Specifications
- mean life time is 12 years. 1.2.8. Environmental restrictions: - Ambient temperature, from 5 to 50°C - Relative humidity shall be no more than 80% at 35°C, without moisture condensation - Vibrational loads – within the range of 10-55 Hz, with displacement am- plitude up to 0.35 mm - Atmospheric pressure from 66.0 to 106.7 kPa. -
Page 9: Contents Of The Delivery Package
3. Set of fittings can be provided for on-site installation at customer’s op- tion either as specified in the purchase order. Allowable pressure for the supplied set of fittings is 2.5 MPa. Operating documentation for this product is available on: www.aflowt.com. -
Page 10: Design And Operation
1.5. Design and operation 1.5.1. Operating Principle and Arrangement of the Flowmeter The flowmeter consists of the primary transducer (electromagnetic flow sensor) and secondary converter which is a microprocessor-based electronic measuring block (MB). MF operation principle is based on measuring electromotive force (EMF) induced in electrically conductive liquid when it flows in magnetic field. -
Page 11: Operating Modes
Volume V of the liquid passed through the flow sensor during the time interval Т is calculated by the formula: The measuring block includes processing, communication and dis- play (if applicable) modules. The processing module: - Provides power supply for solenoids - Receives and processes the induced EMF signals, determines average volumetric flow rate - Totalizes volume and time of operation... -
Page 12: Displaying Results And External Connections
1.5.2.2. The modes provide different options for modification of the device’s configuration settings. The settings are reconfigured programmatically via RS-485 interface. In the WORK mode, only the settings which have no effect on the flowmeter’s operation can be changed: - Dose value set for the batching mode - Serial interface properties - Display settings. - Page 13 Measurement units and number of displayed digits are given in Ta- ble 4. Table 4. Displaying measured parameters Number of digits (max) Name Description Units Notes integer part fractional part l/min Average volumetric flow rate Up to 10 Up to 3 Note 1 Note 1 Total volumetotalized value...
- Page 14 It is possible to switch indication by feeding the corresponding sig- nal to the control input. To do this, select Menu navigation item for the control input. The first line of the display shows characters corresponding to alarm or fault condition in the operation of the pipeline or to the failure of the device (see fig.2a).
- Page 15 Table 6. Functions of the universal outputs Operating mode Condition for the generating of the signal / changing state Name on the PC’s display of the output on the output Modulo flow Flowrate for any flow direction Frequency Direct flow Flowrate for direct (positive) flow direction Flowrate for reverse (negative) flow direction Reverse flow...
- Page 16 Function of the output in the frequency mode is set by Modulo flow, Direct flow and Reverse flow parameters. Modulo flow – a pulse sequence with pulse repetition rate propor- tional to the measured flowrate is generated on the output regardless of flow direction.
- Page 17 - Empty pipe – Signal level on the output is changed if the value of re- sistance exceeds the threshold specified for the pipe filled with liquid - Error “flow out of user range” – Signal level on the output is changed, if the value of the flowrate falls outside the specified rate - Error Q>...
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Page 18: Logs
RS-485 interface supports ModBus (RTU ModBus and ASCII ModBus) protocol and provides cable communication between several stations (one may be a PC) with maximum cable length up to 1200 m. Data transfer rate (from 9600 to 115200 baud) as well as commu- nication properties are set programmatically. -
Page 19: Marking And Sealing
The power supply cable and signal cables are entered into the case via two cables through with M161.5 installation thread. The screw on the MB foundation is used as the flowmeter’s grounding terminal. The wires for connection with the pipeline mating flanges are fastened to the screw. -
Page 20: Operation
CAUTION! DO NOT touch the electrodes inside the flow channel at any time when working with the flowmeter. Mounting considerations, mounting and dismounting instructions, are given in “AFLOWT MF Electromagnetic Flowmeter of the Pro- ×××M× model. Installation Manual”. CAUTION! If the flow channel is covered with fluoroplastic and the protection rings are removed, DO NOT remove the tightening stud (bolt) and clamping plates from the flow channel for more than 10 minutes. -
Page 21: Selecting Standard Size
In this case, it is necessary to eliminate these factors or place the flowmeter in other location. 2.2. Selecting standard size 2.2.1. Flowmeter’s standard size is selected based on the flowrate range in the pipeline where the flowmeter is installed. If several sizes are suita- ble, the standard size is selected from the specified limit of pressure losses. - Page 22 To determine hydraulic losses in the straight pipe run, Graph 5b is used. The Graph of the hydraulic losses as a function of flow velocity corresponds to straight pipe run length-to-diameter ratio 15; 20; 25 and To determine hydraulic losses in the diffusor, Graph 5c is used. The Graph of hydraulic losses as a function of flow velocity is calculat- ed for diffusor taper angle ...
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Page 23: Preparing For Operation
1000 DN150 DN80 DN40 DN20 0.05 0.02 0.01 12.0 Fig.6. Graph of flow rate vs flow velocity for various DNs 2.3. Preparing for operation 2.3.1. Safety instructions 2.3.1.1. The flowmeter should only be used by personnel familiar with all opera- tional documentation for the product. -
Page 24: Operation Procedure
- Power supply voltage corresponds to the specifications. 2.3.3. At first power-up or after a long break in operation, the flowmeter be- comes operational after: - The flow channel is washed by medium for 30 minutes - The Flowmeter is kept powered for 30 minutes. 2.3.4. - Page 25 For the reverse (bidirectional) flow, the cutoffs trigger both for posi- tive and for negative flow directions. The flow direction signal also changes according to the preset cutoffs. 2.4.4. Setting User flow range The flowmeter also allows to set the minimum (User flow range Qmin) and the maximum (User flow range Qmax) values for the oper- ating flow range.
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Page 26: Troubleshooting
If all the requirements listed above are met contact the service cen- tre (regional dealer) or manufacturer for the information about the de- vice's operability. 2.5.4. "AFLOWT MF" flowmeter, considering its design and recommended operating conditions should be repaired by authorized dealers or by the manufacturer. -
Page 27: Maintenance
3. MAINTENANCE 3.1. It is recommended to make inspections of the flowmeter put into opera- tion on a regular basis at least biweekly, to check that: - Performance of the Flowmeter complies with the specifications - Operating conditions are met - Power supply voltage is present - No external defects are detected - Electrical and mechanical parts are reliably connected. -
Page 28: Packing, Storage And Transportation
4. PACKING, STORAGE AND TRANSPORTATION 4.1. “AFLOWT MF” flowmeter completed in accordance with the order sheet is packed into a separate container made of corrugated carton or into a wooden box. The set of fittings for one or several kits is delivered as an assem- bly or in bulk in a separate box. -
Page 29: Appendix A. View Of Components
APPENDIX A. View of components =24VDC А1 * - reference dimension 1 – display; 2 – measuring block; 3 – flow sensor (primary flow convert- er); 4 – protection rings; 5 – signal cable through; 6 – power supply ca- ble through;... - Page 30 =24VDC * - reference dimension 1 – display; 2 – measuring block; 3 – flow sensor (primary flow convert- er); 4 – protection rings; 5 – signal cable through; 6 – power supply ca- ble through; 7 – wires for connecting the flowmeter case and pipeline; 8 –...
- Page 31 =24В * - reference dimension 1 – measuring block; 2 – flow sensor (primary flow converter); 3 – pro- tection rings; 4 – signal cable through; 5 – power supply cable through; 6 – wires for connecting the flowmeter case and pipeline; 7 – elec- trodes;...
- Page 32 CONTROL INPUT INPUT OUT-1 MODE WORK OUT-2 VERIF. ACTIVE SERV. PASSIVE RS485 A/DATA- B/DATA+ POWER ANALOG SUPPLY OUTPUT -24В+ ХP1 POWER SUPPLY – DC 24 V power supply connector J1 – terminal used to enable modification of service settings J2 – terminal used to enable modification of calibration settings SK1 –...
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Page 33: Appendix B. Schematics Of Input And Outputs
APPENDIX B. Schematics of input and outputs B.1. General-purpose outputs To match the MB (see Fig. B.1) output stages to inputs of different types, the output stages are designed to work with either the internal galvanically isolated power source (active mode) or an external power source (passive mode). - Page 34 Fig.B.2. Current output circuit diagram B.3. MB Control Input Circuit diagram for the MB control input is given in Fig. B.3. Fig.B.3. Circuit diagram of MB input stage As a control signal for XT4/2XT4/3 circuit, (0.5-20) mA current pulse signal is used. If control signal is not applied, current in the circuit must not exceed 0.2 mA.
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Page 35: Appendix С. Configuring Pipeline Filling Settings
Fig.A.4). 3. Connect the flowmeter to the PC via RS-485 interface. 4. Launch Viewer AFLOWT MF-Pro application. Navigate to Measures tab in Current values group, and read value of Empty pipe detection pa- rameter (current threshold signal) in nominal units (32, for example).
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