Dwyer MFS2 User Manual
Series MFS2
Magnetic Inductive Flow Sensor
.
Series MFS2
Table of contents page
0 About this operating manual......................................................................................3
1 Device description.....................................................................................................4
1.1 Intended use ...........................................................................................................5
1.2 Exclusion of liability .................................................................................................5
2 Safety instructions.....................................................................................................6
3 Construction and function..........................................................................................7
4 Installation of MFS2...................................................................................................7
4.1 Installation instructions............................................................................................8
4.2 Assembly.................................................................................................................9
5 Electrical connection ...............................................................................................10
6 Commissioning and measuring operation ...............................................................11
6.1 Commissioning......................................................................................................11
6.2 Measuring operation .............................................................................................11
7 Maintenance and cleaning ......................................................................................11
8 Disassembly and disposal.......................................................................................12
9 Technical data.........................................................................................................13
9.1 Characteristics MFS2............................................................................................13
9.2 Materials table.......................................................................................................14
9.3 Pressure drop........................................................................................................14
9.4 Dimensions ...........................................................................................................15
Copyright notice:
The reproduction, distribution and utilization of this operating manual as well as the communication
of its contents to others without express authorization is prohibited. Offenders will be held liable for
the payment of damages. All rights reserved in the event of the grant of a patent, utility model or
design.
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Series MFS2 About this operating manual
0 About this operating manual
The operating manual is aimed at specialists and semi-skilled personnel.
Before each step, read through the relevant advice carefully and keep to the specified
order.
Thoroughly read and understand the information in the section "Safety instructions".
If you have any problems or questions, please contact your supplier or contact us directly
at:
DWYER INSTRUMENTS, INC.
P.O. Box 373 • Michigan City
INIDANA 46361, U.S.A.
Phone: (219) 879 - 8000
Fax: (219) 872 - 9057
Email: info@dwyer-inst.com
Hazard signs and other symbols used:
WARNING! / CAUTION! Risk of injury!
This sign indicates dangers that cause personal injuries that can lead to health defects or
cause considerable damage to property.
CAUTION! Electric current!
This sign indicates dangers which could arise from handling of electric current.
CAUTION! Material damage!
This sign indicates actions which could lead to possible damage to material or environmental
damage.
ADHERE TO OPERATING MANUAL!
NO DOMESTIC WASTE!
The device must not be disposed of
together with domestic waste.
Pay attention to and comply with
information that is marked with this symbol.
Follow the specified instructions and steps.
Adhere to the given order.
NOTICE!
This symbol indicates important notices,
tips or information.
Check the specified points or notices.
Reference to another section, document or
source.
• Item.
Technical changes reserved - 3 -
Device description Series MFS2
1 Device description
The MFS2 series from Dwyer, is a non-contact flow sensor. The measurement is performed
using magnetic induction and works without any moving parts.
The MFS2 is used for measuring or metering water and aqueous solutions. The compact
design and independence from the intake and discharge sections allows the MFS2 to be
used under a variety of conditions.
Components:
Sensor housing:
The sensor housing consists of plastic and
has the IP65 degree of protection.
Electrical connection:
The electrical connection is made via 4-pin
plug M12x1.
Operation / flow indicator LED.
Type plate with flow direction (marking)
Process connection:
The process connections are available in
different sizes.
Versions:
The MFS2 is available in different nominal sizes from DN 8 to DN 25.
The versions can be configured differently (MFS2 Data sheet).
Scope of delivery and accessories:
Before installing the device, check the delivered items and ordered accessories:
Scope of delivery:
1x MFS2 as ordered.
1x Operating manual.
1x Packaging.
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Series MFS2 Device description
Accessories:
Connection cable with moulded M12x1 coupling
socket.
M12x1 coupling socket as component.
1.1 Intended use
The magnetic inductive flow sensor MFS2 must only be used for measuring and metering
liquids with a minimum conductivity of 20 μS/cm.
WARNING! No safety component!
The magnetic inductive flow sensor of the series MFS2 are not safety components in
accordance with Directive 2006-42-EC (Machine Directive).
Never use the MFS2 as a safety component.
The operational safety of the device supplied is only guaranteed by intended use. The
specified limits ( § 9 "Technical data") may under no circumstances be exceeded.
Before installing the device, check that the wetted materials of the device are compatible with
the media being used ( § 9.2 "Materials table").
Measuring tube empty (or partially filled). / Conductivity too low.
The green LED may blink irregularly if the measuring tube of the MFS2 is empty or
partially filled, or if the conductivity of the fluid being used is too low. Random pulses will
be present at the output, but they do not represent an actual flow.
Ensure that the measuring tube of the MFS2 is always completely filled ( § 4.1
"Installation instructions").
Ensure that the conductivity of the fluid is at least 20 μS/cm.
1.2 Exclusion of liability
We accept no liability for any damage or malfunctions resulting from incorrect installation,
inappropriate use of the device or failure to follow the instructions in this operating manual.
Technical changes reserved - 5 -
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