SUTO S415 Manual

English
Instruction and Operation Manual
S415
Compact Thermal Mass Flow Meter
(Eco-Inline)

Dear Customer,
Thank you for choosing our product.
Before you start up the device please read the operating instructions in
full and carefully observe them. 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 canceled and the manufacturer is e empt from liability.
The device is destined 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 S415

Ta le of Contents
1 Safety Instructions......................................................................4
2 Registered Trademarks................................................................6
3 RF E posure Information and Statement........................................7
4 Application.................................................................................8
5 Features....................................................................................8
6 Technical Data............................................................................9
6.1 General Data........................................................................9
6.2 Electrical Data.....................................................................10
6.3 Output Signals....................................................................10
6.4 Accuracy ...........................................................................10
7 Dimensional Drawing.................................................................11
8 Installation...............................................................................14
8.1 Installation Considerations....................................................14
8.2 LED Indicators....................................................................15
8.3 Electrical Connection ..........................................................15
9 Signal Outputs..........................................................................17
9.1 Analog Output.....................................................................17
9.2 Pulse Output.......................................................................17
9.3 Modbus Interface.................................................................18
9.3.1 Modbus Information.......................................................18
9.3.2 Connect Several S415 to Modbus Master...........................19
9.3.2.1 Modbus/RTU Cable Length.........................................19
9.3.2.2 Modbus/RTU Wiring and Cable Type............................20
9.3.2.3 Create Daisy-Chain using RS-485 Splitter....................21
9.3.2.4 Topology of Modbus/RTU Daisy-Chain.........................22
9.4 M-Bus Output......................................................................23
9.5 Connection between S415 Outputs and Customer Equipment....23
10 Configuration..........................................................................25
11 Calibration..............................................................................26
12 Disposal or Waste....................................................................26
13 Appendi A - Specifications.......................................................27
13.1 Flow Ranges......................................................................27
13.2 Error Code........................................................................28
13.3 Order Table.......................................................................28
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1 Safety 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 as well as by the responsible user / qualified
personnel.
This instruction manual must be available at the operation site of the
flow meter 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 ursting
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.
WARNING!
Voltage used for supply!
Any contact with energized parts of the product
might 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 system is only allowed by authorized
qualified personal.
4 S415

1 Safety Instructions
ATTENTION!
Permitted operating parameters!
O serve the permitted operating parameters. Any
operation exceeding this parameters can lead to
malfunctions and might 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 operating
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 e plosive areas.
•Please observe the national regulations before/during installation
and operation.
Remarks
•It is not allowed to disassemble the product.
ATTENTION!
Measurement values can e affected y malfunction!
The product must e installed properly and
frequently maintained. Otherwise it might lead to
wrong measurement values, which can result in
wrong results.
•Always observe the direction of the flow when installing the
device. The direction is indicated on the housing.
•Do not e ceed the ma imum operating temperature at the sensors
tip.
•Avoid condensation on the sensor element as this will affect
accuracy enormously.
S415 5

1 Safety Instructions
Storage and transportation
•Make sure that the transportation temperature is between
-30 ... +70°C.
•For storage and transportation it is recommended to use the
packaging which comes with the device.
•Make sure that storage temperature of the device is between
-10 ... +50°C.
•Avoid direct UV and solar radiation during storage.
•For the storage the humidity must be <90% with no condensation.
2 Registered Trademarks
Trademark Trademark owner
SUTO®SUTO iTEC
MODBUS®Modbus Organization, Hopkinton, USA
Android™,
Google Play
Google LLC
6 S415

3 RF Exposure Information and Statement
3 RF Exposure Information and Statement
This equipment complies with FCC RF radiation e posure 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.
NOTE: The manufacturer is not responsible for any radio or TV
interference caused by unauthorized modifications to this equipment.
Such modifications could void the user’s authority to operate the
equipment.
NOTE: 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 e perienced 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.
S415 7

4 Application
4 Application
The S415 is the thermal mass flow meter that is designed to measure
the volumetric flow and consumption of compressed air and nitrogen
within the permitted operating parameters. (See Technical Data on the
ne t page.)
The default unit settings are: volumetric flow in l/min and total
Consumption in m3. Other units can be configured using the mobile App
S4C-FS, which can be downloaded from the Google Play store or SUTO
website. For more information, see chapter 10 on page 25.
5 Features
•Inline thermal mass flow meter virtually independent of pressure
and temperature changes
•Process connection G-type thread, DN8, DN15, DN20, DN25 and
DN32
•Integrated flow conditioner, no need of straight inlet sections
•Very short response time
•Particularly suitable for measuring at point-of-use flow and
consumption of compressed air or N2
•Integrated display showing volumetric flow
•Choices of output signals:
◦Analogue 4 … 20 mA and pulse output
◦Modbus interface
◦M-Bus interface
•Bluetooth interface for device settings
•Configurable through the mobile phone App S4C-FS
8 S415

6 Technical Data
6 Technical Data
6.1 General Data
FCC ID: 2ASK2-SUTO-002
Parameters Standard unit flow: l/min (default)
Consumption units: m³ (default)
Reference conditions ISO1217 20°C, 1000 hPa (Standard-Unit)
DIN1343 0°C , 1013.25 hPa (Norm-Unit)
Principle of measurement Thermal mass flow
Sensor Glass coated resistive sensor
Ambient temperature
/Transport temperature
0 ... +50°C / -30 ... +70°C
Medium conditions 0 ... +50°C, rH<90% no condensation
Operating pressure 0 ... 1.0 MPa
Pressure drop Ma imum pressure drop at the ma imum
flow of the Standard (S) flow range:
•DN8 type : 30 hPa
•DN15 type: 100 hPa
•DN20 type: 100 hPa
•DN25 type: 200 hPa
•DN32 type: 170 hPa
Casing Process connection: aluminum alloy
Wetted parts: aluminum alloy
Top casing: PC + ABS
Protection class IP54
Dimensions See dimensional drawing on page 11.
Display 4-digit LED display
Tube diameter DN8, DN15, DN20, DN25, and DN32
Process connection G inner thread ISO 228-1
Weight 0.45 kg (DN8), 0.44 kg (DN15)
0.97 kg (DN20), 0.94 kg (DN25)
1.7 kg (DN32)
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6 Technical Data
6.2 Electrical Data
Power supply 15 ... 30 VDC, 120 mA @ 24 VDC
6.3 Output Signals
Analogue output Signal: 4 ... 20 mA, isolated
Scaling: 0 to ma flow
Ma load: 250R
Pulse output 1 pulse per m3 , isolated switch, ma .
30 VDC, 200 mA
(pulse length: 10 ... 120 ms, depends on flow
rate)
Modbus output See section 9.3 on page 18.
6.4 Accuracy
Accuracy*
(at 6 bar, 20°C, rH<40%)
± (3.0% of reading + 0.3% Full Scale)
Temperature coefficient < 0.1%/K Full Scale
Pressure coefficient <5% / 1 MPa
Turndown ratio 50 : 1
Stated accuracy at Ambient/process temperature 23°C ± 3°C
Ambient/process humidity <90%
Process pressure at 0.6 MPa
Repeatability ±1% of reading
Sampling rate 3 samples per second
* The specified accuracy is valid only within the minimum and ma imum
flow rates that are stated in section 13.1 on page 27.
Remark:
The total consumption value is saved to the permanent memory every 5
minutes. If within these 5 minutes the device is powered off, it will
restore the last consumption value which was saved in the last cycle.
10 S415

Dimensional Drawing
7 Dimensional Drawing
Unit: mm
DN8/DN15
S415 11

Dimensional Drawing
DN20/DN25
12 S415

Dimensional Drawing
DN32
S415 13

8 Installation
8 Installation
The S415 is delivered with following components:
Qty. Description Item no.
1 S415 Compact Thermal Mass Flow Meter
S695 4150
S695 4151
S695 4152
S695 4153
S695 4154
1 5 m cable with M8 connector and open ends A553 0136
1 Instruction manual No P/N
1 Calibration certificate No P/N
8.1 Installation Considerations
•When installing the flow meter, always observe the arrows on the
housing showing the flow direction. The air/gas flow direction must
always be in line with the arrows on the housing.
•Due to the integrated flow conditioner, there are no additional
straight pipe requirements for good measurement. However for
best measurement, it is recommended 3-5 times inner diameter
straight pipe at the inlet.
•The S415 can be installed in horizontal or vertical pipes.
14 S415

8 Installation
Note:
•The device is for indoor use only! For outdoor applications, ensure
a protection from solar radiation and rain. Always observe
operating temperature and humidity as stated in the the technical
data.
•It is strongly recommend not to install S415 permanently in wet
air/gas conditions, which e ists usually right after a compressor
outlet.
8.2 LED Indicators
The S415 provides two LED indicators on the display panel, which
indicate the status of display and Bluetooth connection separately.
LED Function Status
lpm Indicator for the display state
(volumetric flow)
On: The display is showing the
volumetric flow rate.
Flashing: N/A
stat. Indicator for the Bluetooth state On: The Bluetooth is
connected.
Flashing: N/A
8.3 Electrical Connection
The flow meter comes with two connector plugs “A” and “B”. By default
the flow meter is delivered with one 5 m cable with a M8 connector on
one side and open wires on the other side. To make the S415 work, one
cable connection is sufficient. However, if the pulse output is to be used
or the supply and the signal need to be on separate cables, a second
connection cable must be ordered.
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8 Installation
Legend to pin assignment
GNDMGround for Modbus
-VBNegative supply voltage
+VBPositive supply voltage
+I Positive 4 … 20 mA signal
(isolated)
-I Negative 4 ... 20 mA signal
(isolated)
D+ Modbus data +
D- Modbus data -
SW Isolated pulse output (switch)
M-Bus M-Bus data
NA Not Applicable
Pin assignment connector plug M8
Output type Connector Pin 1 Pin 2 Pin 3 Pin 4
Modbus A D- -VB+VBD+
B D- GNDMNA D+
Pulse and analog A -I -VB+VB+I
B -I SW SW +I
M-Bus A M-Bus -VB+VBM-Bus
B M-Bus NA NA M-Bus
Wire color Brown White Blue Black
ATTENTION!
Do not screw the M8 plug using force. Otherwise, it
may damage the connecting pins.
16 S415

9 Signal Outputs
9 Signal Outputs
9.1 Analog Output
The flow meter has an analog output of 4 ... 20 mA. This output can be
scaled to match a desired measuring range. Standard scaling is from 0
to the ma flow. The corresponding flow in different pipe sizes can be
found in section 13.1 on page 27.
9.2 Pulse Output
The flow meter outputs one pulse per a consumption unit. This pulse
output can be connected to an e ternal pulse counter to count the total
consumption. The number of m3 per second are summed up and
indicated after one second. Pulse length depends on flow rate.
S415 17

9 Signal Outputs
Volumetric
flow
[m3/s]
Volumetric
flow
[m3/h]
Pulse length
[ms]
Max. pulse
output
per hour
≦ 3≦ 10800 120 1080
> 3 > 10800 60 2880
> 6 > 21600 30 3960
9.3 Mod us Interface
9.3.1 Mod us Information
The default settings of the Modbus interface are as follows:
Mode RTU
Baud rate 19200
Device address Last two digits of the serial number
Framing / parity / stop bit 8, N, 1
Response timeout 1 second
Response delay 0 ms
Inter-frame spacing 7 char
Response message that the device returns to the master:
•Function code: 03
The information of the byte order is shown in the table below:
Byte
Order
Sequence Data
Type
1st 2nd 3rd 4th
1-0-3-2 Byte 1
(MMMMMMMM*)
Byte 0
(MMMMMMMM *)
Byte 3
(SEEEEEEE)
Byte 2
(EMMMMMMM *) FLOAT
1-0-3-2 Byte 1 Byte 0
LSB
Byte 3
MSB Byte 2 UINT32 INT32
1-0 Byte 1
MSB
Byte 0
LSB --- --- UINT16 INT16
1-0 Byte 1
XXX *
Byte 0
DATA --- --- UINT8 INT8
* S: Sign, E: E ponent, M: Mantissa, XXX: no value
18 S415

9 Signal Outputs
Explanations of MSB and LSB
MSB MSB refers to Most Significant Byte first, which follows the Big-
Endian byte order.
For e ample, if the main system follows the MSB first order:
When the 4-byte floating number, in the order of Byte1-Byte0-
Byte3-Byte2, is received from the slave (sensor), the master
must change the byte order to Byte3-Byte2-Byte1-Byte0 for the
correct display of the value.
LSB LSB refers to Least Significant Byte first, which follows the Little-
Endian byte order.
For e ample, if the main system follows the LSB first order:
When the 4-byte floating number, in the order of Byte1-Byte0-
Byte3-Byte2, is received from the slave (sensor), the master
must change the byte order to Byte0-Byte1-Byte2-Byte3 for the
correct display of the value.
Note: Modbus communication settings as well as other settings can be
changed by the service App S4C-FS or through the windows based
Service Software.
Availa le measurement channels
Channel name Resolution Format Length Register
address
Flow 0.1 FLOAT 4-Byte 6
Consumption 1 UNIT32 4-Byte 8
9.3.2 Connect Several S415 to Mod us Master
The S415 with Modbus/RTU interface can be easily daisy-chained to a
Modbus Master device. This master can be either SUTO displays and
gateways or any third-party Modbus/RTU master.
Through this method you can add up to 16 flow meters to the master
device.
9.3.2.1 Mod us/RTU Ca le Length
A Modbus/RTU bus line has limitations which shall not be e ceeded,
otherwise the communication might not be stable.
•The ma imum total bus length must not e ceed 1200 m.
•The stub length to each node must not e ceed 30 cm.
S415 19

9 Signal Outputs
See the picture below for details.
9.3.2.2 Mod us/RTU Wiring and Ca le Type
To ensure a stable communication a twisted-pair bus cable must be
chosen to set up the Modbus/RTU communication.
•Bus-cable specifications must follow the EIA485 Standard, must be
twisted pair and shielded, for e ample 2 2 0.22 mm2, Li-2YCY
(A553 0123).
•The shield must be connected at one end to the master GND
connection.
•At the end of the bus, a 120 Ohm resistor should be placed a
termination resistor.
See the below picture for details.
20 S415