SUTO S418-V Manual
English
Instruction and operation manual
S418-V
Vacuum Flow Meter
(With Data Logger)
Dear Customer,
Thank you for choosing our product.
Before you start up the device please read this manual in full and
carefully observe instructions stated in this manual. 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 void 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 S418-V
Table of Co te ts
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.......................................................................9
6.3 Data logger.........................................................................10
6.4 Output signals.....................................................................10
6.5 Accuracy of flow..................................................................10
6.6 Accuracy of pressure............................................................11
7 Dimensional drawing..................................................................11
8 Installation...............................................................................12
8.1 Installation considerations....................................................12
8.2 LED indicators.....................................................................12
8.3 Electrical connection ..........................................................13
9 Sensor signal outputs................................................................15
9.1 Analog output.....................................................................15
9.2 Pulse output.......................................................................15
9.3 Modbus output....................................................................17
10 Configuration..........................................................................18
11 Read and analysis of measurement data.....................................19
11.1 Features...........................................................................19
11.2 Operations........................................................................20
11.2.1 Logger configuration.....................................................20
11.2.2 Data read-out and analysis............................................20
12 Calibration..............................................................................22
13 Disposal or waste....................................................................22
14 Appendi A - Specifications.......................................................23
14.1 Vacuum flow ranges...........................................................23
14.2 Order table.......................................................................23
14.3 Error codes.......................................................................24
15 Appendi B - Modbus communication e ample............................25
S418-V 3
1 Safety instructions
1 Safety i structio s
Please check if this i structio ma ual matches with 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.
WARNING!
Compressed air!
A y co tact with quickly escapi g air or bursti g
parts of the compressed air system ca lead to
serious i juries or eve 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!
A y co tact with e ergized parts of the product, may
lead to a electrical shock which ca lead to serious
i juries or eve 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 S418-V
1 Safety instructions
ATTENTION!
Permitted operati g parameters!
Observe the permitted operati g parameters, a y
operatio exceedi g this parameters ca lead to
malfu ctio s a d may lead to damage o the
i strume t 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.
Ge eral safety i structio s
•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!
Measureme t values ca be affected by malfu ctio !
The product must be i stalled properly a d
freque tly mai tai ed, otherwise it may lead to
wro g measureme t values, which ca lead to
wro g 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
accuracy enormously.
Storage a d tra sportatio
•Make sure that the transportation temperature is between
-30 ... +70°C.
S418-V 5
1 Safety instructions
•For storage and transportation it is recommended to use the
packaging which comes with the sensor.
•Please make sure that 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
SUTO®
Registered trademark of SUTO iTEC
MODBUS®
Registered trademark of the Modbus Organization, Hopkinton, USA
HART®
Registered trademark of the HART Communication Foundation, Austin,
USA
PROFIBUS®
Registered trademark of the PROFIBUS User Organization, Karlsruhe,
Germany
Bluetooth® word mark and logos
Registered trademarks of Bluetooth SIG, Inc.
Android™, Google Play
Trademarks of Google LLC
6 S418-V
3 RF exposure information and statement
3 RF exposure i formatio a d stateme t
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.
S418-V 7
4 Application
4 Applicatio
The S418-V is a thermal mass flow sensor that is designed to measure
the actual flow at the low pressure side of vacuum pumps within the
permissible operating parameters (in chapter 6 Technical data).
The S418-V can measure the following values:
•Absolute volumetric flow (default unit: al/min)
•Total consumption (default unit: m3)
•Absolute pressure (default unit: bar)
Other units are configurable using the service app S4C-FS, which can be
downloaded from the Google Play store or our Website. For more
information, see chapter 10.
5 Features
•Inline thermal mass flow sensor virtually independent of pressure
and temperature changes.
•Process connection of G-type thread with DN8, DN15, DN20 and
DN25 available
•Very short response time.
•Particularly suitable for measuring at the point-of-use at the low
pressure side of vacuum pumps.
•Integrated display showing actual volumetric flow and absolute
pressure.
•Options for output signals:
•Analogue 4 … 20 mA and pulse output
•Modbus interface
•M-Bus interface
•Bluetooth interface for remote sensor settings
•Configurable through Android devices
•Embedded data logger capable of recording 5-million
measurement samples
8 S418-V
6 Technical data
6 Tech ical data
6.1 Ge eral data
FCC ID: 2ASK2-SUTO-003
Parameters Flow: Actual volumetric flow: l/min, m3/h,
m3/min, cfm
Consumption: m3, ft3
Medium pressure: bar, psi
Principle of measurement Thermal mass flow
Sensor Glass coated resistive sensor
Measuring medium Air
Ambient temperature
/Transport temperature
0 ... +50°C / -30 ... +70°C
Medium conditions 0 ... +50°C, rH<90% no condensation
Pressure range 0.01 ... 1.60 bar(a)
Material 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
Process connection: G inner thread ISO 228-1
Weight 0.43 kg (DN8), 0.46 kg (DN15)
0.96 kg (DN20), 0.97 kg (DN25)
6.2 Electrical data
Power supply 15 ... 30 VDC, 120 mA @ 24 VDC
S418-V 9
6 Technical data
6.3 Data logger
Memory size Up to 8,000,000 samples.
Recording channels Up to 3 channels: Flow, consumption, and
pressure.
Logger programming Through mobile app S4C-FS
(Free for download on Google Play Store and
SUTO Website)
Logger readout Through the software S4A via USB
(Downloadable on the SUTO website)
6.4 Output sig als
Analogue output Signal: 4 ... 20 mA, isolated
Scaling: 0 to ma flow
Ma load: 250R
Pulse output 1 pulse per consumption unit (m3 or ft3)
isolated switch, ma . 30 VDC, 200 mA
(pulse length: 10 ... 120 ms, depends on flow
rate)
Modbus output See section 9.3.
6.5 Accuracy of flow
Accuracy* ±(1.5% of reading + 0.3% FS)
Temperature coefficient < 0.1%/K FS
Pressure coefficient <0.5% / bar
Turndown ratio 100:1
Stated accuracy at Ambient/process temperature 23 °C ± 3 °C
Ambient/process humidity <90%
Process pressure at 0.6 MPa
Repeatability ± 0.5% of reading
Sampling rate 10 samples / second
* The specified accuracy is valid only within the minimum and ma imum
flow rates that are indicated in section 14.1.
10 S418-V
8 Installation
8 I stallatio
S418-V is delivered with following components:
Qty. Descriptio Order o.
1
S418-V Thermal mass flow sensor, DN8 /
S418-V Thermal mass flow sensor, DN15 /
S418-V Thermal mass flow sensor, DN20 /
S418-V Thermal mass flow sensor, DN25
S695 4190
S695 4191
S695 4192
S695 4193
1 5 m cable with M8 connector and open ends A553 0136
1 USB cable A553 0130
1 Instruction and operation manual No
1 Calibration certificate No
8.1 I stallatio co sideratio s
In order to maintain the accuracy stated in the technical data, the senor
must be installed inline and fitted to a tube with the same diameter.
•The sensor is for indoor use only! At an outdoor installation, the
meter must be protected from solar radiation and rain.
•It is strongly recommend not to install S418-V permanently in wet
environment.
8.2 LED i dicators
The S418-V provides four LED indicators on the display panel, which
indicate the status of the data logger, display, and Bluetooth connection
separately.
12 S418-V
8 Installation
LED Fu ctio Status
Rec Indicator for the logger state On: NAND flash is formatting.
Flashing: Data logger is
working.
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: Bluetooth is connected.
Flashing: N/A
bar Indicator for the display state
(pressure)
On: The display is showing the
pressure value.
Flashing: N/A
8.3 Electrical co ectio
The flow sensor is equipped with two connectors “A” and “B”. By default
the sensor is delivered with one 5 m cable with a M8 connector on one
side and open wires on the other side. To make the S418-V 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.
Lege d to pi assig me t
GND: Ground for Modbus
-VB: Negative supply voltage
+VB: Positive supply voltage
I+: Positive 4...20 mA
signal
I-: Negative 4... 20 mA
signal
D+: Modbus data +
D-: Modbus data -
P: Pulse signal
M-Bus: M-Bus data
NA: Not Applicable
S418-V 13
8 Installation
Pi assig me t co ector plug M8
Output Version Connector Pin 1 Pin 2 Pin 3 Pin 4
Modbus A D- -VB +VB D+
B D- GND NA D+
Pulse and analog A I- -VB +VB I+
B I- P P I+
M-Bus A M-Bus -VB +VB M-Bus
B M-Bus NA NA M-Bus
Wire color brown white blue black
ATTENTION!
Do ot screw the M8 plug usi g force. Otherwise, it may
damage the co ecti g pi s.
14 S418-V
9 Sensor si nal outputs
9 Se sor sig al outputs
9.1 A alog output
The sensor provides 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 chapter 14.
9.2 Pulse output
The sensor outputs one pulse per 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.
S418-V 15
9 Sensor si nal outputs
9.3 Modbus output
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
Remarks: Modbus communication settings can be changed by the
service appS4C-FS.
Cha el descriptio Resolutio Format Le gth
Modbus
Register
address
Flow 0.1 FLOAT 4-byte 6
Consumption 1 UNIT32 4-byte 8
Pressure 0.01 FLOAT 4-byte 2
Remark: The physical units of measurement channels can be configured
using the service APP S4C-FS.
In the response message that the device returns to the master:
•Function code: 03
•Byte order (32-bit data): MID-LITTLE-ENDIAN.
To properly decode the 4-byte float and unsigned integer data in
the response message, the master must change the byte order
from MID-LITTLE-ENDIAN to the order that it is using (LITTLE-
ENDIAN or BIG-ENDIAN).
Byte seque ci g of byte orders
Byte order Byte seque ci g (HEX) Example
MID-LITTLE-ENDIAN
(Read from the device)
A B C D 0 0A 11 42 C5
LITTLE-ENDIAN B A D C 0 11 0A C5 42
BIG-ENDIAN C D A B 0 42 C5 0A 11
S418-V 17
10 Confi uration
10 Co figuratio
To change any settings on the S418-V, please download and install the
service App S4C-FS from the Google Play store or our Website. This
App works on any Android system with Bluetooth supported.
To be allowed to change settings, the App needs to scan the QR code on
the calibration certificate. This ensures that only authorized users can
access the sensor settings. For more information about instructions, see
the S4C-FS Instruction and operation manual.
ATTENTION!
Cha ges o the setti gs may lead to wro g
measureme t results! Co tact ma ufacturer i case
you are ot familiar with the setti gs.
18 S418-V
11 Read and analysis of measurement data
11 Read a d a alysis of measureme t data
The S418-V embeds the data logger to record measurement data. You
can read out the data from the data logger, and analyze the data using
the free analysis software S4A.
11.1 Features
Before you use the data logger, learn about how it works:
•You can use the Android App S4C-FS to enable or disable the data
logger function and set a sampling rate as needed.
•By default the data logger is disabled. Once you enable the data
logger, the S418-V starts logging data. Once you disable the data
logger, the S418-V stops logging.
•The S418-V saves all sampled data records into one file. Each
record includes a time stamp and all measurement data sampled
at this time point, such as flow, consumption, and pressure.
•The S418-V log file supports up to 5.6 million records due to its
memory size, which is equivalent to 64-day data at the one-
second sampling rate.
•When the S418-V runs out of memory, the new record will replace
the oldest one.
•To read out the logs recorded in the S418-V memory, install S4A
(1.1.2 or later versions), which is a specialized log analysis
software from SUTO, on a Windows-based computer. Meanwhile,
connect the PC with the S418-V through the USB port.
•Data records are saved in one file in the S418-V, and usually S4A
reads them out in one file. But in the following situations, S4A
reads the records out into multiple log files :
•When the sampling rate is changed, S4A reads out the data
records into a different file.
•When the S418-V stops logging (for e ample, when the power
is shut off.) and resumes in less than 24 hours, S4A still reads
out the data records into one file; However, if the time gap is
larger than 24 hours, S4A reads out the new data records to a
different file.
S418-V 19
11 Read and analysis of measurement data
•S4A enables you to have a graphic view on measurement data
recorded in a log file.
11.2 Operatio s
11.2.1 Logger co figuratio
You can control and configure the S418-V data logger using the S4C-FS
App. Detailed steps are as follows.
1. Install and launch the S4C-FS App.
For more information, see the S4C-FS Instruction and Operation
Manual.
2. On the S4C-FS App, access Setti gs > Logger Setti gs and
then perform all logger-related operations as described below.
Parameter Descriptio
Logger Status To start or stop the logger.
Start Date & Time To view the time stamp of the first log
recorded.
Stop Date & Time To view the time stamp of the last log
recorded.
Number of Samples To view the number of log records in the
S418-V data logger.
Sampling Rate(mm:ss) To specify the sampling rate.
11.2.2 Data read-out a d a alysis
To read, analyze and e port the measurement data recorded in the
S418-V, download and use the free data analysis software S4A:
1. Download the S4A software from Support > Dow loads > Apps
on the SUTO Website (http://www.suto-itec.com).
2. Install the software on your computer by double clicking the
downloaded EXE file.
3. Launch the S4A software.
4. Click the Detect menu to detect and build the communication with
the S418-V.
5. Click the Read menu to read out data records logged during a
time period that you specify.
20 S418-V
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