S220
S220 Dew Point Sensor for Compressed Air (-100… +20 °C Td)
Reliable dew point measurement in high-tech applications with a wide range of -100 … +20 °C Td.
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 (Optional 35.0 MPa)
State-of-the-art Dew Point Monitoring
The new generation of the SUTO dew point sensors have been redesigned from the ground up, offering compressed air users a plug & play solution to monitor their compressed air quality and purity. With the integrated pressure sensor, the S220 measures dew point, temperature and pressure in a single instrument.
Minimization of calibration intervals
Thanks to the reliable and long-term stable measurements, the S220 Dew Point Sensor reduces the maintenance cost to a minimum by increase calibration intervals.
Unique Triple Sensor
Our QCM sensor is the result of years of high-tech research and development. The sensor was especially designed for low dew point applications where other sensor types fail. The combination of QCM and the well-known Polymer sensor makes the S220 the world’s first model to measure accurate over the whole range, from -100 °C Td up to +20 °C Td by switching automatically between the two sensor elements as needed.
By fitting an additional optional pressure sensor into the measurement unit, SUTO is combining 4 sensor elements (Polymer, QCM, Pt100, pressure) into a single dew point sensor.
Various Output Connections
The S220 Dew Point Sensor is available with 2-wire or 3-wire analog 4… 20 mA output signals. It is also available with a Modbus/RTU digital interface.
By offering different output signals, users can profit from great flexibility and seamless integration into their process. They can be easily connected to the SUTO displays and data loggers S330/331 and S551, for optimal stationary or portable data logging, as well as to third-party devices.
Optional Display for On-site Values
The optional OLED display directly mounted on the sensor provides on-site real-time values. The display can be easily rotated by 340 ° to fit in any application. The display cover is made from robust Polycarbonate with ABS reinforcement to withstand harsh environments.
Robust Materials for Long-term Stable Measurements
The main body is made from high class aluminum alloy with a soft finish. The process connection material is 1.4301 (SUS 304) stainless steel, made to last forever. Top cover made from aluminum with the same quality as the main body.
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 |
SUTO Exchange Service
The exchange calibration service eliminates downtime and enables users to have a seamless record of their dew point measurements.
The user receives a calibrated instrument in advance with a calibration certificate and the same instrument settings. The onsite instrument is then switched with the calibrated one and returned to the supplier. Please find more information about our Exchange Service here.
Please contact us here for consultation or special requests, such as custom dew point ranges or different gas types.
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 % vom Messwert |
| 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 | 0 ... +50 °C |
| Ambient humidity | 0 ... 100 % rH |
| Storage temperature | -20 ... +50 °C |
| Transport temperature | -30 ... +70 °C |
| * 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) | |
S201/ S211/ S212/ S215/ S217/ S220/ S230/ S231/ S305/ S505/ S520 – CE & UKCA DECLARATION OF CONFORMITY
CE / UKCA DOC
S211 / S215 / S220
Manuals
S211 / S215 / S220
Info sheets
S4C-DP S2XX Service Software: V1.4
Software
Our humidity calculator offers a simple solution to calculate measurement-related parameters in terms of humidity, dew point, and more. From the drop-down menu, it is easy to select the input parameters, so humidity conversions can be executed vice versa, simply from one unit into another.
Personal advice
Would you like to receive more information about products and applications?
Or do you need personal advice? We’re here to help!
