The SUTO S211 Compact Dew Point Sensor provides an affordable and reliable dew point monitoring solution for industrial applications in accordance to ISO 8573-1. It’s compact design and great features makes it the perfect choice for dew point measurements in desiccant dryers.
Made in Germany. brand SUTO, model S211
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
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Official distributor in Latvia
Time-tested American, European and Asian brands of control and measurent instruments
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After-sales service and support
Warranty service and repair, expert assistance in the operation of the instruments
The new generation of dew point sensors from SUTO builds on more than 20 years of experience in developing sensors for compressed air and industrial gas systems. Over this time, the company’s engineers have continuously improved measurement methods and developed their own sensing elements for innovative hygrometers. The result of many years of research is a unique QCM sensor (quartz crystal microbalance), specifically created for measurements at low dew points where other types of sensors do not work. In combination with a well‑known polymer sensor, the QCM makes the S220 model the world’s first hygrometer that accurately measures across the entire range from –100 °C Td to +20 °C Td, automatically switching between the two sensing elements as needed.
All sensor models offer a plug‑and‑play solution for compressed air quality monitoring in accordance with ISO 8573‑1. For seamless integration into process control systems or upper‑level monitoring systems, various output options are available: 4…20 mA (2‑wire configuration) + SDI, 4…20 mA (3‑wire) + SDI, and 4…20 mA (3‑wire) + Modbus/RTU. In addition, the dew point sensors are offered with an integrated pressure sensor.
The main housing is made of a high‑quality aluminum alloy with a soft coating. The process connection is made of stainless steel 1.4301 (SUS 304), guaranteeing a virtually lifelong service life. The top cover and the optional display cover are produced from durable polycarbonate reinforced with ABS for operation in harsh environments. An OLED display mounted directly on the device displays real‑time values on site. The display can be easily rotated by 340° to adapt it to any configuration.
The new generation of sensors is the successor to the well‑known SUTO hygrometers that have satisfied users for many years. At the same time, the new sensors have been developed using the latest technologies and all accumulated experience, yet remain fully 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 |
Features
Benefits
| MEASUREMENT | |
| Dew Point | |
| Accuracy | ± 1 °C Td (0 … 20 °C Td) ± 2 °C Td (-60 … 0 °C Td) |
| Selectable units | °C, °F, bar(g), MPa(g), psi(g), % rH, g/m³, mg/m³, g/m³ atm., mg/m³ |
| Measuring range | -20 … +50 °C Td |
| Repeatability | 0.25 % from measured value |
| Sensor | Polymer |
| Response time (t90) | 0 °C Td ➞ -60 °C Td ≤ 280 sec -60 °C Td ➞ 0 °C Td ≤ 65 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 |
| Model | Description | Price |
| S699 1211 | S211 Dew Point Transmitter (-60 … +20 °C Td), 2-Wire Analog Output | On request |
| S699 2211 | S211 Dew Point Transmitter (-60 … +20 °C Td), 3-Wire Analog + SDI Output | On request |
| S699 3211 | S211 Dew Point Transmitter (-60 … +20 °C Td), 3-Wire Analog + Modbus/RTU Output | On request |
| S699 4211 | S211 Dew Point Transmitter (-60 … +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 |
| A1381 | S215/S211: High Pressure 0 … 35.0 MPa (only for S215 & S211) | On request |
| A1388 | OLED Display Option, for 3-wire Analog & Modbus version (only for S699 3xxx & S699 4xxx) | On request |
| A1389 | Option: Without Display (Standard) | On request |
You can request the necessary certificates, documentation, instructions and user guide for SUTO S211 using the special form.
You can buy SUTO S211 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 olil@olil.lv. SUTO S211 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.
See also: Dew point meters for compressed air