Tecfluid FLOMID Series User manual

R-MI-FIMBC1 Rev.: 0 english version
Series FLOMID
Sensor FLOMID-FX
Converter MBC1
Instructions manual
The art of measuring

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Thank you for choosing a product from Tecfluid S.A.
This instruction manual allows the installation, configuration,
programming and maintenance. It is recommended to read it before
using the equipment.
• This document shall not be copied or disclosed in whole or in any
part by any means, without the written permission of Tecfluid S.A.
• Tecfluid S.A. reserve the right to make changes as deemed
necessary at any time and without notice, in order to improve the
quality and safety, with no obligation to update this manual.
• Make sure this manual goes to the end user.
• Keep this manual in a place where you can find it when you need
it.
• In case of loss, ask for a new manual or download it directly from
our website www.tecfluid.com Downloads section.
• Any deviation from the procedures described in this instruction
manual, may cause user safety risks, damage of the unit or cause
errors in the equipment performance.
• Do not modify the equipment without permission. Tecfluid S.A. are
not responsible for any problems caused by a change not
allowed. If you need to modify the equipment for any reason,
please contact us in advance.
PREFACE
WARNINGS

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TABLE OF CONTENTS
SENSOR FLOMID-FX
1 WORKING PRINCIPLE .................................................................. 6
2 RECEPTION ................................................................................. 6
2.1 Unpacking .......................................................................... 6
2.2 Storage temperatures ......................................................... 6
3 HANDLING ................................................................................... 7
4 INSTALLATION ............................................................................. 7
4.1 Sensor position .................................................................. 8
4.2 Straight pipe sections ......................................................... 8
4.3 Valves ............................................................................... 9
4.4 Pumps ................................................................................ 9
4.5 Aeration ............................................................................. 9
4.6 Reduction of DN ................................................................. 10
4.7 Vibrations ........................................................................... 10
4.8 Magnetic fields .................................................................. 11
4.9 Temperature ...................................................................... 11
5 MOUNTING .................................................................................. 12
5.1 Parallelism .......................................................................... 12
5.2 Gasket Position .................................................................. 12
5.3 Sensor earth connection ..................................................... 13
5.4 Tightening ........................................................................... 14
6 MAINTENANCE ............................................................................ 14
MBC1 CONVERTER
1 INTRODUCTION ........................................................................... 15
2 INSTALLATION .............................................................................. 15
2.1 Sensor connection .............................................................. 15
2.2 Electrical connection (for external power supply) .................. 16
2.2.1 External power supply wiring .................................. 16
2.2.2 Digital output wiring ............................................... 17
2.2.3 Modbus wiring ....................................................... 18
3 CONVERTER INTERFACE .............................................................. 19
4 OPERATION ................................................................................. 19
5 MAIN MENU .................................................................................. 20
5.1 Passwords to access the menus .......................................... 20

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6 INSTALLATION PARAMETERS ....................................................... 23
6.1 Sensor factor ...................................................................... 23
6.2 Converter factor .................................................................. 24
6.3 Nominal diameter ................................................................ 24
6.4 Diagnosis ........................................................................... 24
6.5 Reset totalizer .................................................................... 24
6.6 Date and time ..................................................................... 25
6.7 Operation mode (only with battery power supply) .................. 25
7 CONVERTER PROGRAMMING ...................................................... 25
7.1 Time between measurements .............................................. 26
7.2 Units .................................................................................. 27
7.3 Flow rate decimals .............................................................. 27
7.4 Flow rate ............................................................................. 28
7.4.1 Cut off .................................................................... 28
7.4.2 Reversal flow rate ................................................... 28
7.4.3 Damping ............................................................... 28
7.4.4 Offset .................................................................... 29
7.5 Digital outputs (only with external power supply) ................... 30
7.5.1 Flow rate alarm ...................................................... 30
7.5.2 Empty pipe ............................................................ 31
7.5.3 Negative flow rate .................................................. 31
7.5.4 Pulses ................................................................... 31
7.6 Datalogger ......................................................................... 32
7.7 Default screen .................................................................... 32
7.8 Modbus (only with external power supply) ............................ 32
7.8.1 Slave address ........................................................ 33
7.8.2 Baud rate .............................................................. 33
7.8.3 Parity .................................................................... 33
7.8.4 Stop bits ................................................................ 33
7.8.5 Timeout ................................................................. 34
8 SERIAL NUMBER .......................................................................... 34
9 FIRMWARE VERSION ................................................................... 34

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10 WORKING SCREEN ....................................................................... 34
10.1 Empty pipe ......................................................................... 35
10.2 Low voltage ....................................................................... 35
10.3 Open coil ........................................................................... 35
11 MAINTENANCE ............................................................................ 36
11.1 Fuse .................................................................................. 36
11.2 SD card ............................................................................. 36
11.3 Battery replacement ........................................................... 37
12 ASSOCIATED SOFTWARE WINSMETER MBC1 .............................. 39
12.1 USB cable connection and software installation ................... 39
12.2 Port connection ................................................................... 40
12.3 Password ........................................................................... 41
12.4 Access to “installation” ....................................................... 43
12.5 Access to “Programming” ................................................... 43
12.6 Visualization ....................................................................... 44
12.7 Zero flow drift adjustment .................................................... 44
12.8 Datalogger ......................................................................... 45
12.9 Firmware updates ............................................................... 46
12.10 Configuration file ................................................................. 47
12.11 Default values ..................................................................... 47
13 TECHNICAL CHARACTERISTICS .................................................. 48
14 SAFETY INSTRUCTIONS ............................................................... 50
14.1 Pressure equipment directive .............................................. 50
14.2 Certificate of conformity TR CU (EAC marking) ..................... 50
15 DIMENSIONS ............................................................................... 51
16 TROUBLESHOOTING ................................................................... 55
ANNEX A Flow rate table ...................................................................... 56

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1 WORKING PRINCIPLE
The FLOMID electromagnetic flowmeters converter are based on Faraday’s induction law.
When an electrically conductive liquid flows through a magnetic field, perpendicular to the
flow direction, it induces a voltage V proportional to the liquid velocity.
Two electrodes in contact with the liquid and positioned perpendicularly to the magnetic
field, sense this voltage V.
2 RECEPTION
The FLOMID electromagnetic flowmeters are supplied conveniently packaged for their
protection during transportation and storage, together with their instructions manual for
installation and operation.
All the instruments are supplied tested in our flow rigs, obtaining the gain factor Fc of each
sensor.
2.1 Unpacking
Unpack the instrument carefully, removing any remains of the packing from the inside of the
sensor. Do not remove the grease from the neck that couples to the electronics housing.
2.2 Storage temperatures
Sensors linings of: PTFE and PVDF -20ºC ...... +60ºC
PP and EBONITE -5ºC ...... +50ºC
V = B·vm·D
Where:
V = Measured voltage in the electrodes
B = Magnetic field
vm= Average liquid velocity
D = Pipe diameter

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4 INSTALLATION
This should be made in a point that guarantees that the pipe is always completely full.
Avoid high points of the pipes where air pockets usually form, or pipes with falling flow where
vacuums can form.
Partially full pipes can produce important reading errors.
Flow rate measurement with open discharge makes it necessary to install the flowmeter in a
pipe section with a siphon which avoids stagnation of air in the sensor.
3 HANDLING
It should always be done with care and without knocks.
The large diameter sensors have rings for holding the elevation elements. If the flowmeter is
held using slings, these should hold on the sensor and not on the electronics housing (see
drawing).

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4.2 Straight pipe sections
They are necessary before and after the sensor. The minimum distances are the following:
Upstream 5 DN
Downstream 3 DN
In installations with turbulent flow it may be necessary to increase these distances.
4.1 Sensor position
The most adequate position is with the electrodes in a horizontal plane. In this way, deposits
of particles on the electrodes are avoided.

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4.5 Aeration
If there is a point where the level difference is higher than 5 m an air inlet valve should be
installed after the sensor to avoid a vacuum effect that could damage the sensor liner.
4.4 Pumps
Pumps should be mounted upstream from the sensor to avoid the suction of the pump
(vacuum) that could damage the sensor liner.
4.3 Valves
Control valves or shut-off valves should always be installed downstream from the sensor to
assure that the pipe is always full of liquid.

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4.6 Reduction of DN
In installations where, due to reasons of the flow rate to be measured, a sensor of a smaller
DN than the pipe DN must be mounted, the reduction must be done with an angle smaller
than 4º to avoid turbulences that can give false readings.
If the angle cannot be so small, straight pipe sections indicated in 4.2 point must be kept.
4.7 Vibrations
Vibrations of the pipes should be avoided by anchoring the pipe before and after the sensor.
The vibration level should be less than 2.2 g in the range of 20 -150 Hz according to IEC
068-2-34.

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4.8 Magnetic fields
Strong magnetic fields close to the sensor should be avoided.
4.9 Temperature
In open air installations it is recommended to install a protection to avoid direct sun light on
the flowmeter.
With thermally insulated pipes DO NOT insulate the sensor. High temperatures can damage
it.
NOTE: High o very low temperatures shorten the battery life.
The maximum liquid temperatures are shown on page 48.

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5 MOUNTING
5.1 Parallelism
The maximum parallelism error must be less than 0.5 mm (Lmax—Lmin ≤ 0.5 mm).
5.2 Gasket position
In the wafer sensors, to avoid leakage of liquid inside the sensor, it must be ensured that the
rubber gasket (A) of the figure is well centered, so that it presses directly on the plastic of the
sensor.
The standard material of the supplied gasket is NBR. Other materials can be supplied on
demand.
The sensors for connection other than wafer, are supplied without gaskets.

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b) In the case of metallic pipes with internal lining or plastic pipes, connect the earth
cables to the earthing rings, supplied on request.
5.3 Sensor earth connection
To obtain correct operation the sensor should have its functional earth connected to a point
that is in direct contact with the liquid whose flow rate wants to be measured.
The earth cables should assure a good electrical contact. To obtain this, they should be well
screwed down and with a good contact on both sides of the sensor. It is important to
eliminate paint or coverings that act as insulation of the connection.
The functional earth connection should be used exclusively for the sensor given that parasitic
signals caused by other electrical equipment connected to this earth can cause malfunction
of the sensor.
The connection of the functional earth should be made as follows:
a) In the case of metallic pipes without internal lining connect the earth cables to the
counter flanges.
The earth rings are necessary when installing in non-metallic pipes or in metallic pipes with
internal insulating liner (PTFE, PVDF, PP, EBONITE, etc.).

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Earthing rings are supplied in two versions:
Metallic, disk in stainless steel EN 1.4404 (SS 316L), for liquids compatible with this material.
Plastic, with an electrode to make the contact with the liquid. The materials (plastic and
metal) depend on the working liquid.
5.4 Tightening
The tightening torque of the fastening screws of the flanges should not exceed 32 Nm for
maximum working pressures of 16 bar.
This tightening torque is applicable for wafer sensors (FLOMID-0FX), and with flanges
(FLOMID-2FX) for a pressure value of 16 bar.
The maximum value of the torque depends on the sensor nominal pressure (PN).
The tightening of the flange bolts should be done uniformly, following the sequence indicated
in the drawings according to the number of flange bolts.
6 MAINTENANCE
It is recommended to clean the electrodes in installations where incrustations or appreciable
sedimentations can occur.
Cleaning can be done using liquid detergents and medium hard brushes.
PlasticMetallic Dimensions in mm

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MBC1 CONVERTER
1 INTRODUCTION
The MBC1 converter unit can be used with the different FLOMID and FLOMAT series of
electromagnetic flow sensors. The electronic circuit is based on the most advanced
technology in digital signal processing, in order to obtain accurate and reliable
measurements.
This converter is completely autonomous since it can work with batteries. If desired, it can
also work with an external power supply that allows to have digital outputs and Modbus
communication.
The device provides the following features:
- Coil excitation by means of pulsed signal to obtain a negligible zero offset.
- Empty pipe detection.
- Digital outputs programmable as pulses proportional to flow rate or as flow rate or
status alarms (only with external power supply).
- SD card with programmable activity register (datalogger).
- Easy exchange with other sensors.
- Graphic display with intuitive menus.
- Adjustable front cover in order to make display reading easier, depending on
installation.
- Modbus RTU communication (only with external power supply).
2 INSTALLATION
2.1 Sensor connection
The converter provides two cables to be connected to the sensor. Once connected, slide
the converter along the sensor neck until the stop. Tight the two fixing screws.

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2.2 Electrical connection (for external power supply)
In case the MBC1 converter is used with external power instead of batteries, it is provided
with a terminal strip. To make easy the connection, the description of the terminals is
marked on the label on the back cover of the equipment.
For the electrical installation it is recommended to use multiple conductor cables with
individual cable sections in the order of 0.25 to 0.5 mm2in order to make it easier to
connect.
Before starting the installation, check that the cable glands are the right size for the cables to
be used. This will guarantee the instrument will stay watertight. The cable glands used are
for cables with outside diameters between 3.5 and 10 mm.
To connect the cables, peel the outside insulation to free the inner cables. Then pass the
cables through the cable glands and screw down in the corresponding positions of the
terminal strip as indicated in the following point.
Grip carefully the cables with the cable glands to maintain the degree of protection.
Incorrect installation of the cable gland or inadequate cable placement can cause irreparable
damage to the converter.
2.2.1 External power supply wiring
Before starting the installation of the equipment, check that the supply voltage available is the
same as marked on the label of the converter.
Terminal
9-
10 +

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Terminal
7 Source output 1
6Drain output 1
5 Source output 2
4 Drain output 2
Outputs are N-channel MOSFET transistor isolated from the rest of the circuit and potential
free. (see characteristics on page 48).
2.2.2 Digital output wiring
Example of the connection of the alarm output to a PLC (PNP input)

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2.2.3 Modbus wiring
The recommended cable is a hose with three cables plus a shield. These cables must have
a characteristic impedance of 120 Ω.
Terminal
1A
2B
3Ground (GND)
It is recommended to connect the shield to ground only at one end.
The cable connection between the MBC1 converter and a Master is the following:
MBC1 converter Master
Terminal A A/D-
Terminal B B/D+
GND G/Reference
The instrument has a jumper on the control board (J7) that connects the 120 ohm
termination resistor needed when it is at one end of the Modbus line.

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The following figure shows the functionality of the converter keys.
(Down / Left) To switch between flow
rate, totalizer and flow rate / total
screens.
To change to the digit on the left.
Into the menu, to scroll down.
(Up) To switch between flow rate,
totalizer and flow rate / total screens.
To increase the digit.
Into the menu, to scroll up.
(Enter) To validate the data.
To enter into installation and
programming modes of the converter.
To exit from an informative text.
(Escape) To return to the previous menu.
To exit from a screen without validating
data. To enter in working mode. To
activate the screen.
3 CONVERTER INTERFACE
The MBC1 converter has a graphic LCD and a keyboard with 4 push buttons.
The keyboard has four keys to introduce the values of installation and programming. Two of
these keys are used also as cursors.
4 OPERATION
The converter is supplied in OFF mode. Most components are off and consumption is
minimal.
The first time the instrument is used, it must be put in ON mode.

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If the equipment has external power, the working screen will appear directly.
If the equipment is powered by batteries, the display will be off, and by pressing the (Escape)
key for one second, the working screen will appear.
The "Installation" option allows to configure the instrument, in order to obtain a correct
indication. It is explained in Chapter 6 of this manual.
The "Programming" option allows to program all parameters of the converter, as explained in
Chapter 7 of this manual.
“Language” option selects the language in which all menus will be displayed.
Number of menú items
Selected item
The options "Firmware Version" and "Serial Number" are informative and are discussed in
Chapters 8 and 9 of this manual.
Finally, "Contrast" option allows to regulate the contrast of the information on the screen, to
adapt it to the ambient light of each installation.
5.1 Passwords to access the menus
It is possible to program a different password for the “Installation” menu and for the
“Programming” menu.
By default, the equipment is factory configured with the passwords disabled.
Select the "ON" option and press the (Enter) key. The instrument will be ready for use.
To return to the OFF mode, see point 6.7 on page 25.
5 MAIN MENU
To access the main menu of the converter, press the (Enter) key. The following screen appears: