Mutec FS750E User manual

Operating Manual
MSBA00049
Date: 21.03.2019
Rev.: 05
Page 1 of 14
Operating Manual FS750E
Mütec Instruments GmbH Tel.: [phone] E-Mail: [e-mail]
Bei den Kämpen 26 Fax: [phone] Web: www.muetec.de
D-21220 Seevetal-Ramelsloh
Dust monitoring
with analog output
for the detection of
filter malfunctions

Operating Manual
MSBA00049
Date: 21.03.2019
Rev.: 05
Page 2 of 14
Operating Manual FS750E
05
21.03.2019
Update of cable screen, sensor rod diameter and material
J. Scholtyssek
C. Kutschker
A. Wist
04
09.10.2018
Update of cable, sensor rod and earthing connection
C. Kutschker
J. Scholtyssek
A. Wist
03
15.08.2018
Update of product picture
C. Kutschker
J. Scholtyssek
A. Wist
02
29.03.2018
Update of dimension drawing
J. Scholtyssek
C. Kutschker
A.Wist
01
19.12.2017
First Edition
C. Kutschker
J. Scholtyssek
A. Wist
REV
DATE
DESCRIPTION
PRPD
CHKD
APPR
Operating Manual for FS750E
No.: MSBA00049-50
Issue date: 03/2019
Manufacturer:
Mütec Instruments GmbH
Bei den Kämpen 26
21220 Seevetal
Deutschland
Tel.: [phone]
Fax: [phone]
E-Mail: [e-mail]
Internet: www.muetec.de
Copyright © Mütec Instruments GmbH 2019 All rights reserved
This document is copyright protected. It supports the user in making reliable and efficient use
of the unit. Transmissionand duplication of this document as well as utilization and disclosure
of its content are prohibited unless expressly permitted. Any breach or infringement shall
result in liability for damages. The software described in this document is licensed and may
only be used and copied in accordance with the terms of the license.
All rights reserved.
Disclaimer
We have checked the content of the printed document for compliance with the described
hardware and software. Nevertheless, deviations cannot be excluded and consequently we
cannot assume any guarantee for complete accordance. The data in this printed document
are checked regularly. Corrections and additions are made in the following version in each
case. We would be grateful for any suggestions for improvement.
© Mütec Instruments GmbH Subject to technical modifications

Operating Manual
MSBA00049
Date: 21.03.2019
Rev.: 05
Page 3 of 14
Operating Manual FS750E
Mütec Instruments GmbH Tel.: [phone] E-Mail: [e-mail]
Bei den Kämpen 26 Fax: [phone] Web: www.muetec.de
D-21220 Seevetal-Ramelsloh
Table of Contents
1Classification of the safety instructions........................................................................... 4
2General Instructions....................................................................................................... 5
3Introduction .................................................................................................................... 6
4System Design............................................................................................................... 7
5General information on construction and operation ........................................................ 7
6Mounting Instructions ..................................................................................................... 8
6.1 Selection of the mounting position........................................................................... 8
6.2 Sensor Mounting..................................................................................................... 8
6.3 Transmitter Mounting .............................................................................................. 9
7Electrical Connection.....................................................................................................10
7.1 Connecting the Sensor...........................................................................................10
7.2 Connecting the Transmitter....................................................................................10
8Commissioning, Calibration and Operation....................................................................10
8.1 Commissioning.......................................................................................................10
8.2 Calibration..............................................................................................................10
8.3 Operation...............................................................................................................11
9Technical Data..............................................................................................................12
9.1 Flow-Sensor FSS750E...........................................................................................12
9.2 Transmitter FSI750E..............................................................................................13
10 Service and maintenance ..........................................................................................14
11 Fault Elimination........................................................................................................14
12 Disposal.....................................................................................................................14

Operating Manual
MSBA00049
Date: 21.03.2019
Rev.: 05
Page 4 of 14
Operating Manual FS750E
Mütec Instruments GmbH Tel.: [phone] E-Mail: [e-mail]
Bei den Kämpen 26 Fax: [phone] Web: www.muetec.de
D-21220 Seevetal-Ramelsloh
1Classification of the safety instructions
This manual contains instructions that you have to observe for your personal safety as
well as to avoid material damage. These instructions are highlighted using a triangular
warning sign and shown as follows, depending on the degree of risk.
HAZARD
means that death or severe physical injury will occur if the appropriate precautionary
measures are not taken.
WARNING
means that death or severe physical injury may occur if the appropriate precautionary
measures are not taken.
CAUTION
with a triangular warning sign means that minor physical injury may occur if the
appropriate precautionary measures are not taken.
CAUTION
without a triangular warning sign means that material damage may occur if the
appropriate precautionary measures are not taken.
ATTENTION
means that an undesired result or state may ensue if the corresponding instruction is
not followed.
NOTE
denotes important information about the product, handling of the product or the
respective part of the documentation, is aimed at drawing special attention to the latter
and should be complied with.
In addition tothe instructions in thismanual, the generallyapplicable safetyand accident
prevention regulations must be observed.
If the information contained in this document should not be sufficient in any specific
case, you can obtain more detailed information from our telephone service.
Please read this manual carefully prior to installation and commissioning.
CE mark
This product meets the specifications according to the EMC Directive 2014/30/EU and
the Low Voltage Directive 2014/35/EU.

Operating Manual
MSBA00049
Date: 21.03.2019
Rev.: 05
Page 5 of 14
Operating Manual FS750E
Mütec Instruments GmbH Tel.: [phone] E-Mail: [e-mail]
Bei den Kämpen 26 Fax: [phone] Web: www.muetec.de
D-21220 Seevetal-Ramelsloh
2General Instructions
This device left the plant in flawless condition in terms of its safety features. To preserve
this condition and ensure safe operation of the device, the user has to observe the
instructions and warning notes indicated in this operating manual.
NOTE
For the sake of clarity the manual does not contain complete detailed information on all
product types and can therefore not take into account every conceivable case with
respect to installation, operation and maintenance.
Should you wish further information or should special problems arise that are not treated
in sufficient detail in the manual, you can obtain the necessary information by telephone.
Moreover, we point out that the content of the manual shall not constitute part of or
amend a previous or existing contract, agreement or legal relationship. All obligations of
Mütec Instruments GmbH shall result from the respective contract of purchase, which
also contains the complete and solely valid warranty terms. These contractual warranty
terms shall neither be extended nor limited by the information contained in the manual.
The content reflects the technical state of the art regarding printing. It is subject to
technical modifications in the course of further development.
DISCLAIMER
All modifications to the device fall within the responsibility of the user unless expressly
specified otherwise in the operating manual.
QUALIFIED PERSONNEL
are persons who are familiar with installation, assembly, repair and operation of the
product and have the qualifications necessary for their work, such as:
•Training, instruction and/or authorization to operate and maintain
equipment/systems in accordance with the standards of safety technology for
electrical circuits, high pressures and corrosive as well as hazardous media.
•In the case of equipment with explosion protection: training, instruction and/or
authorization to perform work on electrical circuits for potentially explosive
equipment.
•Training or instruction in accordance with the standards of safety technology
regarding care and use of appropriate safety equipment.
CAUTION
Potentially electrostatic components may be destroyed by voltage that is far below the
limits of human perception. Such voltage occurs even when you touch a component or
electrical connections of a component and are not electrostatically discharged. The
damage that occurs to a component because of overvoltage usually cannot be detected
immediately and does not become noticeable until after a longer operating period.

Operating Manual
MSBA00049
Date: 21.03.2019
Rev.: 05
Page 6 of 14
Operating Manual FS750E
Mütec Instruments GmbH Tel.: [phone] E-Mail: [e-mail]
Bei den Kämpen 26 Fax: [phone] Web: www.muetec.de
D-21220 Seevetal-Ramelsloh
3Introduction
The dust indicator FS750E is intended for the use at the clean air side to detect dust
behind a filter. In this way, filter cracks, fractures or assembly errors are reported
automatically and reliably.
The FS750E is suitable for all piping and metallic channels, whose length exceed 3
times the diameter.
Installation is quick and easy by welding a threaded sleeve. The sensor rod is inserted
into the pipe and fixed by the thread.
The sensor rod length should be at least 1/3 of the pipe diameter and must not touch
the opposite wall. A distance of min. 20mm is recommended between the rod end and
the opposite wall.
The measurement system is based on the triboelectric effect: Particles collide
permanently with each other or with other materials, e.g. the wall. Because of this
process the particles will be charged in a natural way. If these electrically charged
particles are flying next to the sensor rod of FS750E or even touch it, the particles are
detected via the charge transfer.
Resting particles, such as deposits etc., do not affect the measurement. Therefore a
subsequent installation into existing exhaust ducts is possible without any problems.
The device cannot be used for material which forms an electrically conductive layer
between the sensor rod and inner wall by abrasion or adhesions.
The emerging particle load is output as an analog 4-20mA signal. Three conditions of
particle load are additionally signalized by different LED colors at the sensor.
Features
Maintenance free
Analog output of the particle load as a 4-20mA signal
Condition indication by different LED colors
Protection class IP65
Compact form
Easy installation

Operating Manual
MSBA00049
Date: 21.03.2019
Rev.: 05
Page 7 of 14
Operating Manual FS750E
Mütec Instruments GmbH Tel.: [phone] E-Mail: [e-mail]
Bei den Kämpen 26 Fax: [phone] Web: www.muetec.de
D-21220 Seevetal-Ramelsloh
4System Design
The system FS750E consists of a dust monitor
and a DIN-rail transmitter.
The sensor is connected to the transmitter via a
4-wire cable. The measured value of the particle
load is then transferred to the transmitter and is
available as 4-20mA signal at the analog output.
5General information on construction
and operation
Safety instructions
If the device can no longer be operated safely, it
must be put out of operation and secured to
prevent unintentional operation. The reasons for
this may include:
Visible damage to the device
Failure or malfunction
Storage or operation outside the approved
temperature range
Moisture inside the device
Severe transport stress
Before the device is put into operation again, a
professional routine test must be performed in
accordance with DIN EN 61010, Part 1. This test
should be performed by the manufacturer.
Intended use
The FS750E based on the triboelectric effect
detects malfunction at filters, e.g. filter breaks or
assembly errors.
Figure 1: Dimensions (in mm)

Operating Manual
MSBA00049
Date: 21.03.2019
Rev.: 05
Page 8 of 14
Operating Manual FS750E
Mütec Instruments GmbH Tel.: [phone] E-Mail: [e-mail]
Bei den Kämpen 26 Fax: [phone] Web: www.muetec.de
D-21220 Seevetal-Ramelsloh
6Mounting Instructions
6.1 Selection of the mounting position
The inlet and outflow zone for FS750E should not be
less than 3 times the nominal diameter.
After fixing the threaded sleeve in a 90° angle to the
tube axis, the mounted weld must close the gap
between the sleeve and the pipe wall reliably.
The quality of the weld can be tested with a
subsequent pressure test. The drilling of the tube wall
for the required measurement window is performed
with an 18mm drill bit.Therefor the previously welded
sleeve serves as a drilling template. After drilling, the
borehole on the inner pipe wall needs to be trimmed
as much as possible to ensure that material deposits
cannot take place.
6.2 Sensor Mounting
For mounting sleeve need to be threaded on the tube
in a 90° angle to the tube axis
The length of the sensor rod should be at least 1/3 of
the inner diameter of the pipe. The sensor rod must
not come in contact with the opposite wall or with
other metallic parts. Therefore it is recommended to
keep a minimum distance of 20mm between the
opposite wall and the end of the sensor rod.
For proper device operation it is mandatory, to establish the earthing
connection between the sensor enclosure and the installation location (pipe).
Figure 2a: Sensor mounting
Figure 2b –Earthing connection

Operating Manual
MSBA00049
Date: 21.03.2019
Rev.: 05
Page 9 of 14
Operating Manual FS750E
Mütec Instruments GmbH Tel.: [phone] E-Mail: [e-mail]
Bei den Kämpen 26 Fax: [phone] Web: www.muetec.de
D-21220 Seevetal-Ramelsloh
6.3 Transmitter Mounting
Mount the transmitter on a 35 mm
DIN rail according to EN 60715.
Install the module in a suitable
housing to meet the requirements
for the protection class.
The DIN-rail transmitter should
always be installed in a control
cabinet or in a dry room.
The mounting andremoval is shown
in figure 3.
Mounting: Snap-on foot below (left
part of drawing). Removal: With a
screwdriver (right part of drawing).
Figure 4: Dimensions
Figure 3: Transmitter mounting

Operating Manual
MSBA00049
Date: 21.03.2019
Rev.: 05
Page 10 of 14
Operating Manual FS750E
Mütec Instruments GmbH Tel.: [phone] E-Mail: [e-mail]
Bei den Kämpen 26 Fax: [phone] Web: www.muetec.de
D-21220 Seevetal-Ramelsloh
7Electrical Connection
7.1 Connecting the Sensor
The dust monitor and the DIN-rail transmitter are electrically connected via the 4-wire
connection cable. The sensor is supplied with a pre-assembled cable (length 3,0 m,
Ø 4.4 mm, 4 x 0.14 mm², insulation: PVC or special halogen-free compound).The 4
wires of the connection cable are depicted in figure 5 a). Connect the shield with the
ground rail (DIN rail)
7.2 Connecting the Transmitter
The terminal assignment of the transmitter is shown in figure 5 b). It has to be supplied
with 24V DC. For the analog 4-20mA output, use terminal pin T2 and the shared ground
on pin T4. Shielded connection cables should be used. Connect the shield with the
ground rail (DIN rail). As an alternative, unshielded connection cables can be used, if
the cable length does not exceed 3m and the transmitter is mounted within a control
cabinet.
a) 4-wire connection cable of the
sensor + cable screen
b) Power supply and analog output
Figure 5: Terminal assignment
8Commissioning, Calibration and Operation
8.1 Commissioning
After connecting the transmitter to the 24V power supply, it starts the power on
procedure for a few seconds. During this time, the sensor LED flashes blue. The power
on procedure is sinalized with 3mA at the analog output. Subsequently the device is
ready to use and the measurement value of particle load is output in the 4-20mA range.
8.2 Calibration
The FS750E is pre-calibrated by the manufacturer. The entire measuring range is
mapped to the output range 4-20mA. There are two adjustment options for an individual
customization of the analog output range.

Operating Manual
MSBA00049
Date: 21.03.2019
Rev.: 05
Page 11 of 14
Operating Manual FS750E
Mütec Instruments GmbH Tel.: [phone] E-Mail: [e-mail]
Bei den Kämpen 26 Fax: [phone] Web: www.muetec.de
D-21220 Seevetal-Ramelsloh
1. Sensor Adjustment
The amplification factor of the sensor can be adjusted by the gain switch (see figure 6).
Figure 6: View of sensor board
2. Transmitter Adjustment
The analog output range of the DIN-rail transmitter can be adjusted with the
potentiometers ZERO and SPAN. In center position, the ZERO potentiometer maps the
lower measuring range to a current output of 4mA. By adjusting thepotentiometer to the
lower or upper end, the current output is increased or decreased by up to 4mA
respectively.
If the SPAN potentiometer is in center position, the upper measuring range is mapped
to a current output of 20mA. By adjusting the potentiometer to the lower or upper end,
the current output is increased or decreased by up to 4mA respectively.
However, the current output is limitated to a maximum range of 3.8mA to 20.5mA.
8.3 Operation
The emerging particle load is continuously captured and output as an analog value,
corresponding to the previously adjusted settings.
In case of a communication error between sensor and transmitter, the device outputs
3mA.

Operating Manual
MSBA00049
Date: 21.03.2019
Rev.: 05
Page 12 of 14
Operating Manual FS750E
Mütec Instruments GmbH Tel.: [phone] E-Mail: [e-mail]
Bei den Kämpen 26 Fax: [phone] Web: www.muetec.de
D-21220 Seevetal-Ramelsloh
9Technical Data
9.1 Flow-Sensor FSS750E
Housing material: Aluminum
Material sensor rod: V2A / V4A (option)
Isolator: PPS
Protection class: IP65
Weight: 700g
Tightening torque - mounting: 40Nm
Storage temperature: -20°C to +70°C (not condensing)
Operating temperature: -20°C to +70°C
Process temperature: -20°C to +150°C
Process pressure: 0 to 2 bar
Supply voltage: 24 VDC (18 VDC … 26 VDC)
Power consumption: max. 50 mA
Power: < 2 W
Hysteresis: fixed
Filter time: fixed
Connection cable: pre-assembled
If the maximum permissible temperature is exceeded, the warranty expires.

Operating Manual
MSBA00049
Date: 21.03.2019
Rev.: 05
Page 13 of 14
Operating Manual FS750E
Mütec Instruments GmbH Tel.: [phone] E-Mail: [e-mail]
Bei den Kämpen 26 Fax: [phone] Web: www.muetec.de
D-21220 Seevetal-Ramelsloh
9.2 Transmitter FSI750E
Analog output
Constant current: 4 … 20 mA
Output value: max. 20.5 mA
Load: max. 750 Ω
Load influence: ≤ 0,02 %
Damping: filter 1st order, fixed
Power supply
DC voltage: 24 VDC, -20 % to +30 %
Power consumption: max. 2 W
Power-LED/green: good-condition of power supply
Housing
Material: Polyamide
Color: light grey
Protection class: IP20
Width x length x height: 22,5 x 115 x 108 mm
(with connection terminal blocks)
Inflammability class acc. to UL 94: V0
Housing type for mounting: 35 mm DIN rails
Weight with terminal blocks: approx. 100 g
Connection terminal
Solid (minimum/maximum): 0,2 mm2/2,5 mm2
Stranded wire (minimum/maximum):0,2 mm2/2,5 mm2
AWG/kcmil (minimum/maximum): 24/14
Stripping length: 7 mm
Connection method: plugable screw connection
Tightening torque: 0,5 … 0,6 Nm

Operating Manual
MSBA00049
Date: 21.03.2019
Rev.: 05
Page 14 of 14
Operating Manual FS750E
Mütec Instruments GmbH Tel.: [phone] E-Mail: [e-mail]
Bei den Kämpen 26 Fax: [phone] Web: www.muetec.de
D-21220 Seevetal-Ramelsloh
10 Service and maintenance
When using the measuring device at abrasive materials, the product stream exposed
areas must be regularly checked for their dimensions. The loss of material must not be
more than 1mm.
The transmission of the devices remains reliable and stable over a long period, neither
regular adjustments nor maintenances are required.
11 Fault Elimination
Remove the device as soon as a disturbance of the device is detected. Send the device
to the manufacturer for maintenance.
12 Disposal
The disposal of packaging and used parts must be done in accordance with the
provisions of the country in which the equipment is installed. In particular, electronic
components that are to be disposed of, are classified as hazardous!