SUTO S211 Manual

English
Instruction and operation manual
S211 / S215 / S220
Dew point sensor

Dear Customer,
Thank you for choosing our product.
The operating instructions must be read in full and carefully observed
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 exempt from liability.
The device is destined exclusively for the described application.
S TO offers no guarantee for the suitability for any other purpose.
S TO is also not liable for consequential damage resulting from the
delivery, capability or use of this device.
2 S211 / S215 / S220

1 Safety instructions
Table of contents
1 Safety instructions.......................................................................4
2 Registered trademarks.................................................................6
3 Application.................................................................................7
4 Features.....................................................................................7
5 Technical data.............................................................................8
5.1 General................................................................................8
5.2 Electrical data.......................................................................9
5.3 Output signals.......................................................................9
5.4 Accuracy ............................................................................10
6 Dimensional drawing..................................................................11
7 Determination of the installation point..........................................13
8 Installation ..............................................................................14
8.1 Installation requirements......................................................14
8.2 Installation procedure ..........................................................15
8.3 Electrical connection ............................................................17
9 Signal outputs...........................................................................19
9.1 Analog output .....................................................................19
9.1.1 Scaling.........................................................................19
9.2 Modbus RT output .............................................................19
9.2.1 Holding Register table for Modbus RT .............................20
10 Optional accessories.................................................................22
10.1 Measuring chambers ..........................................................22
10.2 Service kit.........................................................................22
11 Calibration..............................................................................23
12 Maintenance............................................................................23
13 Disposal or waste.....................................................................23
S211 / S215 / S220 3

1 Safety instructions
1 Safety instructions
Please check if this instruction manual 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 or qualified
personnel.
This instruction manual must be available at the operation site of the
dew point 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 escaping air or bursting parts of the
instrument.
•The system must be pressure-less during maintenance work.
WARNING!
Voltage used for supply!
Any 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 S211 / S215 / S220

1 Safety 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.
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 results
Storage and transportation
•Make sure that the transportation temperature of the sensor is
between -30 ... +70°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 -20 ... +50°C.
•Avoid direct V and solar radiation during storage.
•For the storage the humidity must be <95% rH, no condensation.
S211 / S215 / S220 5

2 Registered trademarks
2 Registered trademarks
S TO®
Registered trademark of S TO iTEC
MODB S®
Registered trademark of the Modbus Organization, Hopkinton, SA
HART®
Registered trademark of the HART Communication Foundation, Austin,
SA
PROFIB S®
Registered trademark of the PROFIB S ser Organization, Karlsruhe,
Germany
6 S211 / S215 / S220

3 Application
3 Application
The S211 / S215 / S220 are three industrial dew point sensors designed
for measuring dew point and related parameters in compressed air or
industrial gases under specified operating conditions (See next page ).
Parameter Default unit
Temperature °C
Humidity % rH
Dew point °C Td
Pressure (optional) bar (g)
Remark: You can change the units using the service
kit (optional) and the SFA software.
The S211 / S215 / S220 dew point sensors are mainly used in
compressed air systems in the industrial environment, and not
developed to be used in explosive areas. To use them in explosive
areas, please contact the manufacturer.
4 Features
•Three dew point sensor models applicable for different measuring
ranges:
•S211 measures down to -60°C Td
•S215 measures down to -20°C Td
•S220 measures down to -100°C Td
•Optional display for on-site values. The display can be rotated
340° horizontally to ease your access to readings.
•Various signal output options: 4 ... 20 mA 2-wire, 4 ... 20 mA 3-
wire, or 4 ... 20 mA 3-wire + Modbus RT .
•Optional integrated pressure sensor.
•IP65 casing provides robust protection in rough industrial
environment.
•Very fast response time ensures safe and reliable indication
whenever dew points are out of valid ranges.
S211 / S215 / S220 7

4 Features
•High accuracy of ± 2°C Td dew point.
5 Technical data
5 1 General
Parameters Standard unit dew point: °C Td
Standard unit temperature: °C
other units: °F, K
Standard unit humidity: % rH
Standard unit pressure: bar (g)
Principle of measurement Capacitive method and frequency method
Measuring range Type Range
S215 Dew point
Relative Humidity
Temperature
Pressure (option)
: -20 ... +50°C Td
: 0 ... 90 % rH
: -30 ... +70°C
: 0 ... 1.6 MPa
S211 Dew point
Relative Humidity
Temperature
Pressure (option)
: -60 ... +20°C Td
: 0 ... 90 % rH
: -30 ... +70°C
: 0 ... 1.6 MPa
S220 Dew point
Relative Humidity
Temperature
Pressure (option)
: -100 ... +20°C Td
: 0 ... 90 % rH
: -30 ... +70°C
: 0 ... 1.6 MPa
Sensor S215 / S211: Polymer
S220: QCM + Polymer
Temperature sensor: Pt100
Pressure sensor: Piezo resistive type
Measuring medium Air, Argon, O2, N2, CO2*
Ambient temperature 0 ... +50°C
Ambient humidity 0 ... 95% rH
Operating pressure -0.1 ... 1.6 MPa
-0.1 ... 35.0 MPa optional for S215 / S211
Casing material Casing: Aluminium alloy
Process thread: Stainless steel 1.4301 (S S
8 S211 / S215 / S220

5 Technical data
304)
Display cover: PC + ABS
Protection class IP65
Display (optional) 0.66” OLED display for displaying the
measured value and unit
340° horizontally rotatable**
Dimensions See dimensional drawing on the page 11
Screwing thread G ½” thread (ISO 228/1)
Weight 0.2 kg
* For CO2, the measurement range of S211 is limited to -40°C Td
** The rotation force cannot exceed 3.0 N.m
5 2 Electrical data
Power supply 15 ... 30 VDC
Current consumption 2-wire: 4 ... 20 mA
3-wire: 40 mA @ 24 VDC
3-wire with display: 50 mA @ 24 VDC
5 3 Output signals
Analog output 4 ... 20 mA 3-wire or 4 ... 20 mA 2-wire
Analog output scaling Type Scaling
S211 4 mA
20 mA
= -60°C Td
= +20°C Td
S215 4 mA
20 mA
= -20°C Td
= +50°C Td
S220 4 mA
20 mA
= -100°C Td
= +20°C Td
Modbus output Modbus RT
Modbus communication Mode: RT
Baud rate: 19200
Device address: last 2 digits of serial number
Farming / parity / stop bit: 8 / N / 1
S211 / S215 / S220 9

5 Technical data
Response time: 1 second
Response delay: 0 ms
Interframe spacing: 7 char
5 4 Accuracy
Accuracy Dew point:
+/- 1 °C Td (0 ... 20°C Td)
+/- 2 °C Td (-60 ... 0 / +20 ... +50°C Td)
+/- 3 °C Td (-100 ... -60°C Td)
Temperature: ± 0.3°C
Pressure: 0.5% FS
Repeatability of dew point ± 0.5°C
Stated accuracy at Ambient/process temperature 23°C ± 3°C
Ambient/process humidity <95% rH, no
condensation
Airflow > 2 l/min at sensor tip
10 S211 / S215 / S220

6 imensional drawing
6 Dimensional drawing
S211 / S215 / S220 11

6 imensional drawing
12 S211 / S215 / S220

7 etermination of the installation point
7 Determination of the installation point
In order to maintain the accuracy stated in the technical data, the
sensor must be installed correctly. The gas must flow on to the sensor
tip, otherwise it will lead to wrong measurement values. For further
instructions, please read chapter 8 carefully.
Please consider that enough space exists at your site for a convenient
installation.
ATTENTION!
Wrong measurement is possible if the sensor is not
installed correctly
•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 S211 / S215 / S220
permanently in wet environment, which usually exists right after a
compressor outlet.
S211 / S215 / S220 13

8 Installation
8 Installation
Before installing the sensor, please make sure that all components listed
below are included in your package.
Qty Description Item no. (Model dependent)
1 Sensor S215 S211 S220
S699 1215
S699 2215
S699 3215
S699 1211
S699 2211
S699 3211
S699 1220
S699 2220
S699 3220
1 Depending on orders:
M12 plug or M12 cable
Plug: C219 0059
Cable: A553 0104/A553 0105
1 Instruction manual No P/N
1 Calibration certificate No P/N
Remark: The item number of the model varies depending on the
chosen measurement range and signal output.
8 1 Installation requirements
The flowing air or gas must pass the sensor tip for a proper
measurement. This can be realized with a measurement chamber.
For an installation without the measuring chamber, you must insert the
sensor to the required depth, as described in section 8.2.
14 S211 / S215 / S220

8 Installation
8 2 Installation procedure
The following steps explain the procedure of an appropriate installation.
Installation with the measurement chamber
1. Insert the sensor into the
measurement chamber
and tighten it.
2. Connect the measurement
chamber (with the sensor
attached) to the quick
coupling.
Installation without the measurement chamber
•Install the sensor only if
the system is pressure-
less.
•Please check the size of
the nozzle and make sure
not less than 1/3 of the
sensor tip is inside of the
pipe.
•The inner thread must be
G 1/2”.
S211 / S215 / S220 15

8 Installation
Remarks
Please install the sensor only in
the recommended area, as
shown in the left picture.
The angle between the sensor
and the centre vertical line of the
tube must be greater than 30°.
An upside down installation is not
permitted.
Removal of the sensor
nscrew the sensor off the measurement chamber or from the nozzle.
Please make sure that the system is pressure-less before the sensor is
removed.
16 S211 / S215 / S220

8 Installation
8 3 Electrical connection
Connection pins of the M12 plug
Connection pins
(View onto the connector)
Pin assignment of the M12 plug
Sensor models: S699 1215 / S699 1211 / S699 1220
Output signal: 2-wire Analog output
Pin 1 Pin 2 Pin 3 Pin 4 Pin 5
SDI -VB
(Analog loop)
+VB
(Analog loop)
N/A N/A
brown white blue black grey
Sensor models: S699 2215 / S699 2211 / S699 2220
Output signal: 3-wire Analog output and SDI
Pin 1 Pin 2 Pin 3 Pin 4 Pin 5
SDI -VB+VB+I
4 … 20 mA
NA
brown white blue black grey
Sensor models: S699 3215 / S699 3211 / S699 3220
Output signal: 3-wire Analog output and Modbus RT
Pin 1 Pin 2 Pin 3 Pin 4 Pin 5
+I
4 … 20 mA
-VB+VBD+
Modbus RTU
D-
Modbus RTU
brown white blue black grey
S211 / S215 / S220 17

8 Installation
Legend to pin assignment
SDI Digital signal (internal use) +l Active 4 … 20 mA signal
-VBNegative supply voltage NA Not applicable
+VBPositive supply voltage D+ Modbus RT data +
D- Modbus RT data -
ATTENTION!
Do not screw the M12 plug using force Otherwise, it
may damage the connecting pins
18 S211 / S215 / S220

9 Signal outputs
9 Signal outputs
9 1 Analog output
Depending on the model, the sensor provides a 2-wire or 3-wire analog
output. The analog output ranges 4 ... 20 mA.
•The 2-wire analog output is a current loop (loop-powered sensor).
•The 3-wire analog output is an active current output.
9 1 1 Scaling
The following table shows the standard scaling of the analog output.
Type Scaling
S211 4 mA
20 mA
= -60°C Td
= +20°C Td
S215 4 mA
20 mA
= -20°C Td
= +50°C Td
S220 4 mA
20 mA
= -100°C Td
= +20°C Td
For other ranges, please contact the manufacturer. The analog output
can be allocated to the temperature, dew point, and humidity.
9 2 Modbus RTU output
Mode : RT
Baud rate : 19200
Device address : Last two digits of serial number
Framing / parity / stop bit : 8 / N / 1
Response time : 1 second
Response delay : 0 ms
Inter-frame spacing : 7 char
Remark: If your application needs other settings, please state it in the
order or use the Service Kit to configure the sensor settings on site.
S211 / S215 / S220 19

9 Signal outputs
9 2 1 Holding Register table for Modbus RTU
Modbus
Register
Address
Channel description Read/
Write
Data
Type
Data
Length
2000 Group ID R INT16 2-Byte
2001 Device ID R INT16 2-Byte
2002 Serial number R INT32 4-Byte
2004 FW/HW R INT16 2-Byte
2005 Calibration date R DO BLE 8-Byte
2009 Valid days from calibration
date
R INT16 2-Byte
2010 Measuring Channel number R INT16 2-Byte
2011 Device name R string 16-Byte
2100 Alternative humidity unit R/W INT16 2-Byte
2101 Static pressure (in bar(g)) R/W FLOAT 4-Byte
2103 Atmospheric pressure (in
hPa)
R/W FLOAT 4-Byte
2200 nit+Resolution+Data type
of Dew point
R INT16 2-Byte
2201 nit+Resolution+Data type
of Alternative humidity
R INT16 2-Byte
2202 nit+Resolution+Data type
of Pressure
R INT16 2-Byte
2203 nit+Resolution+Data type
of Temperature
R INT16 2-Byte
2300 Status R INT16 2-Byte
2301 Channel Value of
Dew point
R FLOAT 4-Byte
2303 Channel Value of
Alternative humidity
R FLOAT 4-Byte
2305 Channel Value of
Pressure
R FLOAT 4-Byte
2307 Channel Value of
Temperature
R FLOAT 4-Byte
20 S211 / S215 / S220