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SUTO S220 Dew Point Sensor for Compressed Air

The SUTO S220 Dew Point Sensor provides reliable and long-term stable dew point monitoring for compressed air and gases in industrial applications. The sensor has a range of -100 … +20 °C Td. This makes it an ideal choice for dew point measurements in high-tech industries and special conditions, where accordance to the compressed air quality ISO 8573-1 Standards is required.

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Made in Germany. brand SUTO, model S220

Fast delivery to Latvia, Estonia and Lithuania. International delivery to Europe, Asia, Africa and other continents available on request
Our warehouse is located in Riga, Latvia.

price by request

Available

Available

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Official distributor in Latvia

Time-tested American, European and Asian brands of control and measurent instruments

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Special price list for organisations

We offer a significant discount for trade organisations and manufacturing companies

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Worldwide shipping on request

We take care of all logistics and customs clearance. Fast delivery to Baltic countries

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After-sales service and support

Warranty service and repair, expert assistance in the operation of the instruments

Description of SUTO S220

New generation of dew point sensors offers users a plug‑and‑play solution for compressed air quality monitoring in accordance with ISO 8573‑1. All sensor models are available with 2‑wire or 3‑wire 4…20 mA analog outputs; in addition, the models are available with a Modbus/RTU digital interface. Thanks to the availability of various output signals, users can achieve high flexibility and seamless integration into the process.

Furthermore, the dew point sensors are offered with an integrated pressure sensor. An optional OLED display mounted directly on the sensor displays real‑time values. The display can be easily rotated by 340° to suit any application. The main housing is made of a high‑grade aluminum alloy with a soft finish. The process connection is a stainless steel connection of grade 1.4301 (SUS 304), designed for a long service life. The top cover is made of aluminum of the same quality as the main housing. The optional display cover is made of durable polycarbonate reinforced with ABS to withstand harsh operating conditions.

The SUTO S220 sensor is the result of many years of high‑tech research and development. The sensor was specifically designed for applications at low dew points where other types of sensors fail. The combination of the QCM and a well‑known polymer sensor makes the S220 the world’s first model that provides accurate measurement across the entire range from –100 °C Td to +20 °C Td by automatically switching between the two sensing elements as needed. By additionally integrating a pressure sensor into the measuring unit, SUTO combines four sensing elements (polymer, QCM, Pt100, pressure) into a single dew point sensor.

The new generation of sensors is the successor to the well‑known SUTO dew point sensors that have satisfied users for many years. The new sensors have been redesigned from the ground up, integrating the latest technologies and all our experience, while being fully backward compatible with existing installations.

The exchange calibration service eliminates downtime and allows users to have uninterrupted recording of dew point measurements.

Dew Point Sensor Series Comparison

Model S211 S215 S220
Dew point -60 … +20 °C Td -20 … +50 °C Td -100 … +20 °C Td
Temperature -30 … +70 °C -30 … +70 °C -30 … +70 °C
Pressure 0 … 1.6 MPa 0 … 1.6 MPa 0 … 1.6 MPa
Application In desiccant dryers In fridge dryers In high-tech applications
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Features

  • Dew point measurements in high-tech applications
  • Low maintenance costs due to stable measurements
  • Polymer + QCM dual-sensor for highest accuracy
  • Pressure sensor for pressure depending humidity units
  • Flexible installation thanks to the compact design
  • Display option for on-site readings or all values
  • 4 … 20 mA 2-wire / 3-wire and Modbus/RTU
  • Operating pressure of 0 … 1.6 MPa

Technical specifications of SUTO S220

MEASUREMENT
Dew Point
Accuracy ± 1 °C Td (0 … 20 °C Td)
± 2 °C Td (-60 … 0 °C Td)
± 3 °C (-100 … -60 °C Td)
Selectable units °C, °F, bar(g), MPa(g), psi(g), % rH, g/m³, mg/m³, g/m³ atm., mg/m³
Measuring range -100 … +20 °C Td
Repeatability 0.25 % from measured value
Sensor Polymer + QCM
Response time (t90) 0 °C Td ➞ -80 °C Td ≤ 420 sec
-80 °C Td ➞ 0 °C Td ≤ 90 sec
@ 4 l/min
Pressure
Accuracy 0.5 % FS
Measuring range 0 … 1.6 MPa
Sensor Piezo resistive type
Temperature
Accuracy +/- 0.3 °C
Measuring range -30 … +70 °C
Sensor Pt100
Reference conditions
Selectable conditions 20 °C 1000 mbar (ISO1217), 0 °C 1013 mbar (DIN1343) Freely adjustable
SIGNAL INTERFACE & SUPPLY
Analog output
Signal 4 … 20 mA 2-wire or
4 … 20 mA 3-wire
Scaling 4 mA = -60; 20 mA = +20 °C Td; freely adjustable
Load 250R
Update rate 3/sec
Fieldbus
Protocol Modbus/RTU
Update rate 1/sec
Supply
Voltage 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
GENERAL DATA
Configuration
PC Software S4C-DP Application
Display (Optional)
Integrated 0.66” OLED display, indicates the measured value and unit
Material
Process connection Stainless steel 1.4301 (SUS 304)
Housing Display cover: PC + ABS
Sensor Polymer + Quartz-Crystal
Metal parts Sinter filter (stainless steel)
Miscellaneous
Electrical connection M12, 5-pole
Protection class IP65
Approvals CE
Process connection G 1/2” (ISO 228/1)
Weight 180 g
Operating conditions
Medium Air, Argon, O₂, N₂, CO₂*
Medium quality ISO 8573-1: 4.6.3 or better
Medium temperature -30 … +70 °C
Medium humidity ≤ 20 °C Td
Operating pressure 0.1 … 1.6 MPa
Ambient temperature -20 … +70 °C
Ambient humidity 0 … 100 % rH
Storage temperature -20 … +50 °C
Transport temperature -30 … +70 °C
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* CO₂ medium: If the S211 is used in CO₂ the range is limited to -40 °C Td The S220 must be set to CO₂ ex works or by using the S4C-DP Service Software + Service Kit (please state at the order if S211 and S220 will be used in CO₂)

Prices for SUTO S220

Model Description Price
S699 1220 S220 Dew Point Transmitter (-100 … +20 °C Td), 2-Wire Analog Output On request
S699 2220 S220 Dew Point Transmitter (-100 … +20 °C Td), 3-Wire Analog + SDI Output On request
S699 3220 S220 Dew Point Transmitter (-100 … +20 °C Td), 3-Wire Analog + Modbus/RTU Output On request
S699 4220 S220 Dew Point Transmitter (-100 … +20 °C Td), integrated Pressure sensor 0 … 1.6 Mpa On request
A1380 Option: Operating Pressure 0 … 1.6 MPa (Standard) On request
A1387 Option: OLED Display Option, for 3-wire Analog version (only for S699 2xxx) On request
A1388 Option: OLED Display Option, for 3-wire Analog & Modbus version (only for S699 3xxx & S699 4xxx) On request
A1389 Option: Without Display (Standard) On request
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User Guide and Instruction manual for SUTO S220

You can request the necessary certificates, documentation, instructions and user guide for SUTO S220 using the special form.

You can buy SUTO S220 in Latvia at a price starting from price by request € in «OLIL SIA» by leaving a request on the website, by phone +371 672 70580 or by email . SUTO S220 price are subject to change depending on exchange rates. We deliver instruments by transport companies in Latvia, Estonia and Lithuania. Worldwide shipping to Europe, Asia, Africa, North and South America available on request.