SUTO S402 Manual

English
Instruction and operation manual
S402
Thermal mass flow sensor

Dear Customer,
Thank you for choosing our product.
Please read the operating instructions in full and carefully observed
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.
hould the device be tampered with in any manner other than a
procedure which is described and specified in the manual, the warranty
is void and the manufacturer is exempt from liability.
The device is destined exclusively for the described application.
UTO offers no guarantee for the suitability for any other purpose.
UTO is also not liable for consequential damage resulting from the
delivery, capability or use of this device.
2 S402

Table of Contents
1 afety instructions........................................................................4
2 Registered trademarks..................................................................6
3 RF exposure information and statement..........................................7
4 Application..................................................................................8
5 Features......................................................................................8
6 Technical data..............................................................................9
6.1 General.................................................................................9
6.2 Electrical data........................................................................9
6.3 Output-signals......................................................................10
6.4 Accuracy .............................................................................10
6.5 Volumetric flow ranges..........................................................11
7 Dimensional drawing...................................................................12
8 Determining the installation point.................................................13
8.1 Reserving the inlet and outlet sections.....................................14
9 Installing the sensor...................................................................16
9.1 Installation requirements.......................................................16
9.2 Installation..........................................................................17
9.2.1 Calculating the insertion depth..........................................17
9.2.2 Installing the sensor .......................................................19
9.2.3 Removing the sensor ......................................................21
9.3 Electrical connection..............................................................21
10 ensor signal outputs................................................................23
10.1 Analog output.....................................................................23
10.2 Pulse output.......................................................................23
10.2.1 Pulse connection diagram...............................................25
10.3 Modbus output....................................................................26
10.3.1 Modbus settings registers...............................................26
10.3.2 Values registers............................................................27
11 ervice App 4C-F ..................................................................28
12 Calibration...............................................................................29
13 Maintenance.............................................................................29
14 Disposal or waste......................................................................29
15 Appendix A - Modbus communication example..............................30
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1 afety instructions
1 Safety instructions
Please check if this instruction manual matches 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 and by the responsible user or 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.
WARNING!
Compressed air!
Any contact with quickly escaping air or bursting
parts of the compressed air system can lead to
serious injuries or even death!
•Do not exceed the maximum 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.
WARNING!
Voltage used for supply!
Any contact with energized parts of the product, may
lead to an 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.
•Any electrical work on the system is only allowed by authorized
qualified personal.
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1 afety instructions
ATTENTION!
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 exceed the permitted operating parameters.
•Make sure the product is operated in its permitted limitations.
•Do not exceed 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 not allowed to use the product in explosive areas.
•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.
ATTENTION!
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 result
•Always observe the direction of the flow when installing the
sensor. The direction is indicated on the housing.
•Do not exceed the maximum operation temperature at the sensor
probe tip.
•Avoid condensation on the sensor element because this will affect
accuracy enormously.
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1 afety instructions
Storage and transportation
•Make sure that the transportation temperature of the sensor is
between -30 ... +70°C.
•For storage and transportation, it is recommended to use the
packaging which comes with the sensor.
•Please make sure 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%, no condensation.
2 Registered trademarks
UTO®Registered trademark of UTO iTEC
MODBU ®Registered trademark of the Modbus Organization,
Hopkinton, U A
HART®Registered trademark of the HART Communication
Foundation, Austin, U A
PROFIBU ® Registered trademark of the PROFIBU User
Organization, Karlsruhe, Germany
Android™,
Google Play
Trademarks of Google LLC
6 S402

3 RF exposure information and statement
3 RF exposure information and statement
This equipment complies with FCC RF radiation exposure limits set forth
for an uncontrolled environment. This equipment should be installed
and operated with minimum distance of 20 cm between the radiator and
your body.
This device complies with part 15 of the FCC rules. Operation is subject
to the following two conditions: (1) this device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Remark: The manufacturer is not responsible for any radio or TV
interference caused by unauthorized modifications to this equipment.
uch modifications could void the user’s authority to operate the
equipment.
Remark: This equipment has been tested and found to comply with the
limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment
generates uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause
harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one or
more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help。
•This device and its antenna(s) must not be co-located or operating
in conjunction with any other antenna or transmitter.
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4 Application
4 Application
The 402 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 chapter 6 Technical data .
The 402 can measure the following values:
•Volumetric flow of the compressed air or gas.
•Total consumption of the compressed air or gas.
The default factory settings are: Volumetric flow in m3/h and Total
Consumption in m3. Other units can be made available using the mobile
service app 4C-F .
The 402 flow sensor is mainly used in compressed air systems in
industrial environments. The 402 is not designed to be used in
explosive areas. For the use in explosive areas please contact the
manufacturer.
5 Features
•Insertion type flow sensor for easy installations under pressure
through a ball valve.
•Thermal mass flow measurement, virtually independent of
pressure and temperature changes.
•IP65 casing provides robust protection in the industrial
environment.
•Very fast response time.
•High accuracy and wide measuring ranges. pecial ranges on
request.
•Tube diameters from 1/2” up to 12”, larger diameters on request.
•Android app for remote configuration and online reading
•Various interface available such as analogue, pulse, Modbus/RTU,
and MBU .
8 S402

6 Technical data
6 Technical data
6 1 General
FCC ID:2ASK2-SUTO-005
Parameters tandard unit flow: m3/h
Other units: m3/min, l/min, l/s, cfm, kg/h,
kg/min, kg/s
Consumption units: m3, ft3 , kg
Reference conditions I O1217 20°C 1000 mbar ( tandard-Unit)
DIN1343 0°C 1013.25 mbar (Norm-Unit)
Principle of
measurement
Thermal mass flow
ensor Glass-coated resistive sensor
Measuring medium Air, gas (non corrosive gas)
Operating temperature -30 ... +140°C fluid temperature
-30 ... +70°C casing
Humidity of the meas.
medium
< 90%, no condensation
Operating pressure 1.6 MPa
Housing material PC + AB
Material of the probe
shaft, sensor head
(wetted parts)
tainless steel 1.4404 ( U 316L)
Protection class IP65
Dimensions ee dimensional drawing on page 12
Tube diameter 1/2” to 12” (bigger diameters on request)
Process connection G1/2” (I O 228/1)
Weight 450 g (220 mm standard)
6 2 Electrical data
Power supply 15 ... 30 VDC, 200 mA
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6 Technical data
6 3 Output-signals
Analogue output ignal: 4 ... 20 mA, isolated
caling: 0 to max flow
Max load: 250R
Pulse output 1 pulse per consumption unit, isolated switch,
max. 30 VDC, 200 mA (pulse length: 10 ... 120
ms, depending on flow rate)
Modbus output ee chapter 10.3
6 4 Accuracy
Accuracy* ±(2% of reading + 0.3% F )
Temperature drift: < 0.05%/K
tated accuracy at Ambient/process temperature 23°C ± 3°C
Ambient/process humidity <90%
Process pressure at 0.6 MPa
Repeatability ±0.25% of reading
*pecified accuracy is valid only within the minimum and maximum flow
rates that are indicated in section 6.5.
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6 Technical data
6 5 Volumetric flow ranges
The measuring ranges are stated under the following conditions:
•tandard flow in air
•Reference pressure: 1000 hPa
•Reference temperature: 20°C
Inch DN Inner
diameter
(mm)
S402-S
(m³/h)
S402-M
(m³/h)
1" DN25 27.3 0.5 ... 147.7 0.6 ... 294.7
1¼" DN32 36.0 0.9 ... 266.3 1.2 ... 531.5
1½" DN40 41.9 1.2 ... 366.7 1.5 ... 731.9
2" DN50 53.1 2.0 ... 600.1 2.5 ... 1197.6
2½" DN65 68.9 3.5 ... 1026.5 5.0 ... 2048.6
3" DN80 80.9 5.0 ... 1424.4 7.0 ... 2842.7
4" DN100 100.0 10 ... 2183.3 12 ... 4357.2
5" DN125 125.0 13 ... 3419.6 18 ... 6824.4
6" DN150 150.0 18 ... 4930.1 25 ... 9838.9
8" DN200 200.0 26 ... 8785.6 33 ... 17533.3
10" DN250 250.0 40 ... 13743.9 52 ... 27428.5
12" DN300 300.0 60 ... 19814.8 80 ... 39544.1
NOTE:
To calculate flow ranges based on pipe and reference conditions in your
site, download and install the "Flow range calculator" tool for free from
http://www.suto-itec.com.
To fast access the tool download page, enter "flowrange" (without
spaces) in the search field and click the search result.
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8 Determining the installation point
8 Determining the installation point
In order to maintain the accuracy stated in the technical data, the
sensor must be inserted 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 and so on.
Please consider that enough space exists at your site for an adequate
installation as described in this manual.
ATTENTION!
Wrong measurement is possible if the sensor is not
installed correctly
•Careful attention must be paid to the design of the inlet and outlet
section. Obstructions can cause counter-flow turbulence as well as
turbulence in the direction of the flow.
•The sensor is for indoor use only! At an outdoor installation, the
sensor must be protected from solar radiation and rain.
•It is strongly recommend not to install 402 permanently in wet
environment, which exists usually right after a compressor outlet.
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8 Determining the installation point
8 1 Reserving the inlet and outlet sections
The thermal measuring principle may be sensible to inlet and outlet
conditions. We recommend the following minimum straight inlet and
outlet sections to ensure an accurate measurement. The 402 should
be always installed upstream from obstacles like valves, filter,
reductions etc. In common, the sensor should be installed as far as
possible away from any disturbances.
Note: If there is any combination of the below situations, the longest
straight inlet section must be maintained.
•Expansion •Reduction
•90° bend •2 x 90° bend
14 S402

9 Installing the sensor
9 Installing the sensor
Before installing the sensor, please make sure that all components listed
below are included in your package.
Qty Description Item no
1 ensor 695 4105
1 Copper gasket sealing ring NA
1 Alignment key NA
1 Depending on orders:
M12 5-pore plug or M12
cable
5-pore plug: C219 0059
Cable including a 5-pore plug:
A553 0104/A553 0105
Cable including a 6-pore plug:
A553 0106
1 Instruction manual NA
1 Calibration certificate NA
9 1 Installation requirements
To install the sensor, a ball valve or a nozzle is needed.
•The inner thread must be G 1/2”.
•The diameter of the hole must be ≥ 13 mm, otherwise the shaft
cannot be inserted.
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9 Installing the sensor
9 2 Installation
The following steps explain the procedure of an appropriate installation.
9 2 1 Calculating the insertion depth
The sensor probe tip must be placed in the center of the pipe. For this
the probe shaft has a scale. To determine the right position please
calculate the insertion depth as described below.
Center installation is the default and recommended installation type.
Insertion depth=x+y
x=OD
2;
OD is Outer Diameter of the pipe
y=length of the ball valve
Calculation example:
A 2”-diameter pipe and an 87 mm-
length ball valve:
OD=60.3 mm
x=OD
2=60.3 mm
2=30.15 mm
y=87 mm ;
Insertion depth
= 30.15 mm +87 mm=117.15 mm
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9 Installing the sensor
For bigger pipe diameters (>200 mm) the sensor can be installed with
only a 100 mm insertion depth as alternative method. This allows one
sensor to be used for all pipe sizes.
Note: This 100 mm installation depth method requires a setting
through the Android app or the service software.
Insertion depth=x+y+100
x = all thickness of pipe
y = length of the ball valve
Calculation example:
A 12”-diameter pipe with the wall
thickness of 9 mm
An 87 mm-long ball valve
x=9 mm ; y=87 mm
Insertion depth
= 9 mm+87 mm+100 mm=196 mm
18 S402

9 Installing the sensor
9 2 2 Installing the sensor
Observe the flow direction indicated
on the top of the meter or on the
shaft. Make sure it matches the flow
direction of the compressed air or
gas.
1. Close the ball valve
2. Rotate the connection head to
make its connection thread cover
the sensor probe tip completely.
3. Underlay the copper gasket
sealing ring at the thread of the
connector head.
4. Tighten the connection head to
the ball valve. During the process,
move the shaft to make the arrows
shown on the top of the sensor
head point to the flow direction in
the pipe.
5. Open the ball valve.
6. Move the flow sensor slightly to
the calculated insertion depth by
means of the scale on the shaft.
7. Tighten the locking nut by hand
so that the flow sensor cannot be
moved by the pressure in the pipe.
NOTE: The locking nut is a hex nut
with the adjacent edge angle of 60
degrees. ee the figure on the next
page.
S402 19

9 Installing the sensor
8. Using one edge of the locking nut
as a reference, draw a line that is
aligned with this edge on the
hexagonal surface of the connection
head with a pen.
9. Check again to make sure that
the actual flow direction is aligned
with the arrows on the sensor top.
The angle deviation should not be
larger than ±2°, as shown below.
10. Check again and make sure that the installation depth is correct
because sometimes the shaft is moved from its original position by the
compressed air.
11. Follow the steps below to tighten the locking nut with a wrench:
A. Fix the connection head with a wrench.
B. Clamp the locking nut with another wrench. With the line drawn
on the hexagonal surface of the connection head as the reference,
turn the wrench 120 degrees clockwise.
NOTE: If there is still gas leakage
after the above steps, use a
wrench to continue to turn the
locking nut clockwise by 30
degrees.
20 S402
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