SUTO S 212 Manual

English
Instruction and operation manual
S 212
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 S 212

Table of contents
1. Safety instructions.......................................................................4
2. Application.................................................................................7
3. Features.....................................................................................7
4. Technical Data............................................................................8
4.1 General.................................................................................8
4.2 Electrical Data........................................................................8
4.3 Output-Signals.......................................................................8
4.4 Accuracy ..............................................................................9
5. Dimensional drawing..................................................................10
6. Determination of the installation point..........................................11
7. Installation ..............................................................................11
7.1 Installation Requirements......................................................11
7.2 Installation Procedure ...........................................................12
7.3 Electrical connection ............................................................13
8. Signal outputs...........................................................................14
8.1 Analog output ......................................................................14
9. Optional extra accessories..........................................................14
9.1 Measuring chambers ............................................................14
9.2 Service kit...........................................................................15
10. Calibration..............................................................................15
11. Maintenance............................................................................15
12. Disposal or waste.....................................................................16
13. Warranty................................................................................16
S 212 3

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 have to be
observed before and during installation, operation and
maintenance. Therefore this instruction manual has to be read carefully
by the technician as well as by the responsible user / qualified
personnel.
This instruction manual has to 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.
WA NING!
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 pressureless during maintenance work.
WA NING!
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 S 212

1. Safety instructions
WA NING!
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.
emarks
•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.
S 212 5

1. Safety instructions
Storage and transportation
•Make sure that the transportation temperature of the sensor is
between -30°C ... 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 -10°C ... 50°C.
•Avoid direct V and solar radiation during storage.
•For the storage the humidity has to be <90%, no condensation.
6 S 212

2. Application
2. Application
The S 212 is a dew point sensor which is designed to monitor the dew
point in industrial application within the permissible operating
parameters. These parameters can be found in the technical data
section.
The S 212 can measure the following values:
•Temperature of the compressed air or gas.
•Humidity of the compressed air or gas.
•Dew point of the compressed air or gas.
The default factory settings are: temperature in °C, Humidity in % and
dew point in °Ctd. Other units can be programmed by the optional
display or the service kit.
The S 212 dew point sensor is not developed to be used in explosive
areas. For the use in explosive areas please contact the manufacturer.
The S 212 dew point sensor is mainly used in compressed air systems in
industrial environment.
3. Features
•Dew point sensor for low dew point applications down to -50 °Ctd.
•Long term stability.
•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.
•Can be installed directly into dryer through G ½” thread.
•High accuracy of ± 2°Ctd dew point.
S 212 7

4. Technical Data
4. Technical Data
4.1 General
Parameters Standard unit dew point: °Ctd
Standard unit temperature: °C
other units: °F, K
Standard unit humidity: %
Principle of measurement Capacitive method
Measuring range Dew point: -50°C ... 20°C
Relative humidity: 0 ... 99.9%
Temperature: -30°C ... 70°C
Sensor polymer
Measuring medium Non-corrosive gases
Ambient temperature -20°C ... 50°C
Operating pressure -0.1 ... 5.0 MPa
Casing material Zinc alloy
Protection class IP65
Dimensions See dimensional drawing on the next page
Screwing thread G ½” thread (ISO 228/1);
NF 5/8” thread (on request)
Weight 0.2 kg
4.2 Electrical Data
Power supply 12 ... 30 VDC / 60 mA
4.3 Output-Signals
Analog output 4 ... 20 mA, 3 wire
Analog output scaling 4 mA = -50°Ctd
20 mA = 20°Ctd
8 S 212

4. Technical Data
4.4 Accuracy
Accuracy ± 2°Ctd dew point (see picture below)
Repeatability ± 0.5°C
Stated accuracy at Ambient/process temperature 23°C ± 3°C
Process temperature 23°C ± 3°C
Ambient/process humidity <90%, no
condensation
Airflow > 1 l/min at sensor tip
Accuracy: Valid working range:
S 212 9

5. Dimensional drawing
5. Dimensional drawing
10 S 212

6. Determination of the installation point
6. Determination of the installation point
In order to maintain the accuracy stated in the technical data, the
sensor must be installed correctly. The air must flow on to the sensor
tip, otherwise it will lead to wrong measurement values. For further
instructions, please read the next chapter carefully.
Please consider that enough space exists at your site for a adequate
installation as described in this manual.
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 S 212 permanently in wet
environment as it exists usually right after a compressor outlet.
7. Installation
Before installing the sensor, please make sure that all components listed
below are included in your package.
Qty Description Item no.
1 Sensor S699 0412
1 M12 plug C219 0059
1 Instruction manual No P/N
1 Calibration certificate No P/N
7.1 Installation equirements
The flowing air or gas has to pass the sensor tip for a proper
measurement. This can be realized with a measurement chamber. For a
installation without measuring chamber you need to concern the
installation depth which is described in the next chapter.
S 212 11

7. nstallation
7.2 Installation Procedure
The following steps explain the procedure of an appropriate installation.
Installation of the sensor with measurement chamber
1. connect the sensor with
the measurement
chamber.
2. Connect the sensor and
the measurement
chamber with the fast
connector.
Installation of the sensor without measurement chamber
•Install the sensor only if
the system is
pressureless.
•Not less than 1/3 of the
sensor tip should be
inside of the pipe. For
this please check the
size of the nozzle.
•The inner thread has to
be G 1/2”.
12 S 212

7. nstallation
emarks
Please install the sensor only
in the recommended area
like you can see in the
picture. A upside down
installation is not permitted.
Please consider that the
distance to the vertical level
must be >30°.
emoval of the sensor
To remove the sensor unscrew the sensor from the measurement
chamber or from the nozzle. Please observe that the system is
pressureless when the sensor is removed.
7.3 Electrical connection
Connection pins connector plug M12
Connection pins
(view from the clamping side)
Pin assignment connector plug M12
Pin 1 Pin 2 Pin 3 Pin 4 Pin 5
SDI -VB+VB+l
4 ...20 mA
N/A
brown white blue black grey
S 212 13

7. nstallation
Legend to pin assignment
SDI Digital signal (internal use)
-VBNegative supply voltage
+VBPositive supply voltage
+l Active 4 … 20 mA signal
N/A Not available
ATTENTION!
Do not screw the M12 plug using force. Otherwise, it
may damage the connecting pins.
8. Signal outputs
8.1 Analog output
The sensor has an analog output range of 4 ... 20 mA. It is a 3-wire
active analog output. This output is scaled to:
•4 mA = -50°Ctd
•20 mA = 20°Ctd
For other ranges, please contact the manufacturer. The analog output
can be allocated to the temperature, the dew point and the humidity.
9. Optional extra accessories
9.1 Measuring chambers
There are different types of measuring chambers for example Measuring
chamber with fast connector, by-pass-by chamber with in and out
connection, measuring chamber for dryer installation or high pressure
chamber. For more information please contact your retailer or the
manufacturer.
14 S 212

9. Optional extra accessories
9.2 Service kit
The service kit is used to connect the sensor with the PC. Sensor
parameters such as analog output scaling, alarm values, units etc. can
be easily changed by using the service kit.
The diagram below shows the connection when using the optional
service kit. Please ensure that also in this case the power supply of
either S 212 or of the service kit is connected because the SB port is
not supplying enough power.
10. Calibration
The sensor is calibrated ex work. The exact calibration date is printed
on the certificate which is supplied together with the sensor. The
accuracy of the sensor is regulated by the on site conditions,
parameters like oil, high humidity or other impurities can affect the
calibration and furthermore the accuracy. However we recommend to
calibrate the instrument at least once per year. The calibration is
excluded from the instruments warranty.For this please contact the
manufacturer.
11. Maintenance
Please observe from time to time the sinter cap. If it appears to be
dirty, it is recommended to replace it for this please contact the
manufacturer.
ATTENTION!
Contaminated filters can lead to longer response
time and to wrong measurements.
S 212 15

12. Disposal or waste
12. Disposal or waste
Electronic devices are recyclable material and do not belong in the
household waste.
The sensor, the accessories and its packings must be disposed according
to your local statutory requirements. The dispose can also be carried by
the manufacturer of the product, for this please contact the
manufacturer.
13. Warranty
S TO provides a warranty for this product of 24 months covering the
material and workmanship under the stated operating conditions from
the date of delivery. Please report any findings immediately and within
the warranty time. If faults occurring during the warranty time S TO
will repair or replace the defective unit, without charge for labour and
material costs but there is a charge for other service such as transport
and packing costs.
Excluded from this warranty is:
•Damage caused by:
◦Improper use and non-adherence to the instruction manual.
◦se of unsuitable accessories.
◦External influences (e.g. damage caused by vibration, damage
during transportation, excess heat or moisture).
The warranty is cancelled:
•If the user opens the measurement instrument without a direct
request written in this instruction manual.
•If repairs or modifications are undertaken by third parties or
unauthorised persons.
•If the serial number has been changed, damaged or removed.
Other claims, especially those for damage occurring outside the
instrument are not included unless responsibility is legally binding.
Warranty repairs do not extend the period of warranty.
ATTENTION!
Batteries have a reduced warranty time of 12
month.
16 S 212

S 212 17

18 S 212

S 212 19

S TO iTEC GmbH S TO iTEC (ASIA) Co., Ltd.
Werkstr. 2 Room 10, 6/F, Block B, Cambridge Plaza
79426 Buggingen 188 San Wan Road, Sheung Shui, N.T.
Germany Hong Kong
Tel: [phone] Tel: [phone]
Fax: [phone] Fax: [phone]
Email: [email protected] Email: [email protected]
Website: http://www.suto-itec.com Website: http://www.suto-itec.com
All rights reserved © Modifications and errors reserved.
S212_im_en_2017-4
20 S 212