SUTO S452 Manuel
English
Instruction and operation manual
S452
Thermal mass flow sensor
Dear Customer,
Thank you for choosing our product.
Please read the operating instructions in full and carefully observe them
before starting up the device. The manufacturer cannot be held liable
for any damage which occurs as a result of non-observance or non-
compliance with this manual.
Should the device be tampered with in any manner other than a
procedure which is described and specified in the manual, the warranty
is cancelled and the manufacturer is e empt from liability.
The device is designed e clusively for the described application.
SUTO offers no guarantee for the suitability for any other purpose.
SUTO is also not liable for consequential damage resulting from the
delivery, capability or use of this device.
2 S452
Table of contents
1. Safety instructions.......................................................................4
2. Application.................................................................................7
3. Features.....................................................................................7
4. Technical data.............................................................................8
4.1 General data..........................................................................8
4.2 Electrical data........................................................................9
4.3 Output-signals.......................................................................9
4.4 Accuracy ..............................................................................9
5. Dimensional drawing..................................................................10
6. Determination of the installation point..........................................10
7. Inlet and outlet section..............................................................11
8. Sensor installation ....................................................................12
8.1 Removal of the flow sensor ...................................................13
8.2 Electrical connection ............................................................14
9. Signal outputs...........................................................................16
9.1 Analog output ......................................................................16
9.2 Pulse output.........................................................................16
9.3 HART output .......................................................................17
9.4 Modbus output ....................................................................17
9.5 M-Bus output ......................................................................18
10. Configuration..........................................................................19
11. Optional e tra accessories.........................................................21
11.1 Sensor display....................................................................21
11.2 Service kit..........................................................................21
12. Calibration..............................................................................21
13. Maintenance............................................................................22
14. Disposal or waste.....................................................................22
15. Warranty................................................................................22
Appendi A – Flow measurement ranges..........................................24
A.1 Volumetric flow ranges..........................................................24
A.2 Scaling tables for analogue output..........................................24
Appendi B - Modbus communication e ample..................................25
Appendi C - LRC and CRC calculation..............................................27
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1. Safety instructions
1. Safety instructions
Please check if this instruction manual accords to the
product type.
Please observe all notes and instructions indicated in this
manual. It contains essential information which must be
observed before and during installation, operation and
maintenance. Therefore this instruction manual must be read carefully
by the technician as well as by the responsible user / qualified
personnel.
This instruction manual must be available at the operation site of the
flow sensor at any time. In case of any obscurities or questions,
regarding this manual or the product, please contact the manufacturer.
W RNING!
Compressed air!
ny contact with quickly escaping air or bursting
parts of the compressed air system can lead to
serious injuries or even death!
•Do not e ceed the ma imum permitted pressure range (see
sensors label).
•Only use pressure tight installation material.
•Avoid that persons get hit by escaping air or bursting parts of the
instrument.
•The system must be pressureless during maintenance work.
W RNING!
Voltage used for supply!
ny contact with energized parts of the product, may
lead to a electrical shock which can lead to serious
injuries or even death!
•Consider all regulations for electrical installations.
•The system must be disconnected from any power supply during
maintenance work.
•Any electrical work on the system is only allowed by authorized
qualified personal.
4 S452
1. Safety instructions
TTENTION!
Permitted operating parameters!
Observe the permitted operating parameters, any
operation exceeding this parameters can lead to
malfunctions and may lead to damage on the
instrument or the system.
•Do not e ceed the permitted operating parameters.
•Make sure the product is operated in its permitted limitations.
•Do not e ceed or undercut the permitted storage and operation
temperature and pressure.
•The product should be maintained and calibrated frequently, at
least annually.
General safety instructions
•It is allowed to use the product in e plosive areas. Please contact
the manufacturer.
•Please observe the national regulations before/during installation
and operation.
Remarks
•It is not allowed to disassemble the product.
•Always use spanner to mount the product properly.
TTENTION!
Measurement values can be affected by malfunction!
The product must be installed properly and
frequently maintained, otherwise it may lead to
wrong measurement values, which can lead to
wrong results.
•Always observe the direction of the flow when installing the
sensor. The direction is indicated on the housing.
•Do not e ceed the ma imum operation temperature at the sensors
tip.
•Avoid condensation on the sensor element as this will affect the
accuracy enormously.
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1. Safety instructions
Storage and transportation
•Make sure that the transportation temperature of the sensor
without display is between -30 ... +70°C and with display between
-10 ... +60°C.
•For transportation it is recommended to use the packaging which
comes with the sensor.
•Please make sure that the storage temperature of the sensor is
between -10 ... +50°C.
•Avoid direct UV and solar radiation during storage.
•For the storage the humidity must be <90% with no condensation.
6 S452
2. Application
2. pplication
The S 452 is a flow sensor that is designed to measure the consumption
of compressed air and gases within the permissible operating
parameters. These parameters can be found in the technical data
section.
The S 452 can measure the following values:
•Velocity of the compressed air or gas.
•Volume flow of the compressed air or gas.
•Total consumption of the compressed air or gas.
The default factory settings are: Velocity in m/s, Volume flow in m3/h
and Total Consumption in m3. Other units can be programmed by the
optional display or the service kit.
The S 452 flow sensor is developed to be used in e plosive areas and is
mainly used to measure compressed air and process gases in industrial
environments.
3. Features
•Direct measurement of mass flow and standard flow without the
need of pressure and temperature compensation.
•In-line types for smaller pipes.
•No moving parts, no clogging.
•All sensor parts which come into contact with the measurement
medium are made of stainless steel 316L.
•Robust metal enclosure is suitable for outdoor applications in harsh
environments.
•Wireless Bluetooth interface for connecting on site.
•Optional display directly on the sensor, showing flow rate,
consumption, medium temperature and diagnostic result.
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4. Technical data
4. Technical data
4.1 General data
Measuring range 0.4 ... 92.7 sm/s (standard range calibration)
0.8 ... 185 sm/s (ma range calibration)
1.0 … 224 sm/s (high speed calibration)
(See Appendi A for flow measurement ranges
in different tube diameters)
* sm/s: standard meter per second
Parameters Standard unit flow: m3/h
Available units: m3/min, l/min, l/s, cfm, kg/h,
kg/min, kg/s
Standard velocity unit: m/s
Reference conditions ISO1217, 20 °C, 1000 mbar (Standard-Unit)
DIN1343, 0 °C, 1013.25 mbar (Norm-Unit)
Principle of
measurement
Thermal mass flow
Sensor Resistive sensor
Measured medium Air, gas (non corrosive gas)
Operating temperature -40 ... +100°C (medium temperature)
-40 ... +65°C (ambient temperature)
Humidity of the
measured medium
< 90%, no condensation
Operating pressure 0 ... 4.0 MPa
Housing material Al alloy
Material of the probe
tube, sensor head and
the screwing
Stainless steel 1.4404 (SUS 316L)
Protection class IP67
Dimensions See Chapter 5. Dimensional drawing.
Display (optional) Graphic display, 128 64
Tube diameter DN15 … DN80
Screwing thread M32 1.5
8 S452
4. Technical data
Weight 1.25 kg (instrument only, and the measuring
section is not included)
4.2 Electrical data
Power supply 16 ... 30 VDC, 5 W
4.3 Output-signals
Analog output See chapter 9.1
Pulse output See chapter 9.2
HART output See chapter 9.3
Modbus output See chapter 9.4
M-Bus output See chapter 9.5
4.4 ccuracy
Accuracy* ±(1.5% of reading + 0.3% full scale)
Stated accuracy at: Ambient/process temperature +23°C ±3°C
Ambient/process humidity <90%, no
condensation
Process pressure at 0.6 MPa
Repeatability 0.25% of reading
* The specified accuracy is valid only within the minimum and ma imum
flow rates that are stated in Appendi A.1.
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5. Dimensional drawing
5. Dimensional drawing
6. Determination of the installation point
In order to maintain the accuracy stated in the technical data, the
sensor must be insert in the centre of a straight pipe section with
unhindered flow characteristics.
Unhindered flow characteristics are achieved if the section in front of the
sensor (inlet) and behind the sensor (outlet) are sufficiently long,
absolutely straight and free of obstructions such as edges, seams,
curves etc..
Please consider that enough space e ists at your site for a adequate
installation as described in this manual.
TTENTION!
Wrong measurement is possible if the sensor is not
installed correctly.
10 S452
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