S230 / S231
S230 / S231 Compressed Air Dew Point Transmitter for Ex Applications (-100… +20 °C Td / -50 … +20 °C Td)
Ex dew point sensors provide long-term stable dew point monitoring in industrial or hazardous applications.
Industrial dew point transmitter for rough environment
Unique QCM sensor for precise measurements
Low dew point measurement down to -100 °C Td
Compact and robust transmitter design
Explosion proof for Ex-area applications
Low maintenance costs due to stable measurements
4 ... 20 mA (isolated); Modbus/ RTU
Pressure -0.1 ... 1.6 MPa (S230); -0.1 ... 35 MPa (S231)
The SUTO S230 / S231 Heavy-Duty Dew Point Transmitters provide reliable, long-term stable dew point monitoring for compressed air and gases in harsh and hazardous applications. The fast response time ensures safe and reliable indication whenever dew points are out of valid ranges
S230 For Low Dew Point Applications
The S230 Dew Point Transmitter provides accurate results of a range down to -100 °C Td. This makes it perfectly suitable for special applications where a low dew point needs to be measured.
S231 for Standard Range Applications
S231 Dew Point Transmitter comes with a standard range from -50… +50 °C Td, offering a wide range of dew point monitoring applications for compressed air and gases.
Ex Areas Solution
The optional IECEx approval makes it the perfect tool to be used in explosive environment (Ex area). SUTO’s unique dual sensor technology optimizes sensor sensitivity and accuracy by automatically selecting the ideal sensor type for the situation.
User-Friendly Output Signals
The S230/S231 come ready to use and simple to install with your choice of 4-20mA or Modbus RTU (RS485) outputs. If required, parameters can be quickly monitored through the SUTO service software. The transmitters can also be connected the SUTO S331 (stationary) or S551 (portable) data logger and the data can be transferred for further analysis.
SUTO Exchange Service
The SUTO exchange calibration service helps to eliminate downtime and enables users to have a seamless record of their dew point measurements. Learn more about our advanced service here.
Should you have any special requests or need a further application consultation, please contact us here.
- Dew point measurement in explosive environments
- Outdoor / all-weather flow applications
- Explosive environments
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 atm., ppm(v), g/kg, °C Td atm. |
| Measuring range (model depending) | S230: -100 ... +20 °C Td S231: -50 ... +20 °C Td |
| Sensor | Polymer + QCM |
| Response time t90 (@ 4l/min) | -20 °C Td -> -60 °C Td = < 240 s -60 °C Td -> -20 °C Td = < 30 s |
| Temperature | |
| Accuracy | 0.3 °C |
| Measuring range | -30 ... +70 °C |
| Sensor | NTC |
| Reference conditions | |
| Selectable conditions | Pressure Dew Point, Atmospheric Dew Point |
SIGNAL INTERFACE & SUPPLY | |
| Analog output | |
| Signal | 4 ... 20 mA (isolated) Modbus/RTU |
| Scaling | S230: 4 mA = -100 °C Td; 20 mA = +20 °C Td S231: 4 mA = -50 °C Td; 20 mA = +20 °C Td |
| Load | 250R |
| Update rate | 3 / sec |
| Fieldbus | |
| Protocol | Modbus/RTU |
| Update rate | 1/s |
| Supply | |
| Voltage supply | 15 ... 30 VDC |
| Current consumption | 40 mA @ 24 VDC |
GENERAL DATA | |
| Konfiguration | |
| PC Software | S4C-DP Application |
| Material | |
| Process connection | Stainless steel 1.4301 (SUS 304) |
| Housing | Aluminium alloy |
| Sensor | Polymer, Ceramic |
| Miscellaneous | |
| Electrical connection | Screw terminals |
| Protection class | IP67 |
| Approvals | II 2G Ex db ib IIC T4 Gb II 2D Ex ib tb IIIC T135°C Db CE |
| Process connection | G 1/2“ thread (ISO 228/1) |
| Weight | 728 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 (model depending) | -0.1 ... 1.6 MPa (S230) -0.1 ... 35 MPa (S231) |
| Ambient temperature | 0 ... +50 °C |
| Ambient humidity | 0 ... 100 % rH |
| Storage temperature | -20 ... +50 °C |
| Transport temperature | -30 ... +70 ºC |
| Stated accuracy under following conditions: | |
| Ambient temperature 23 °C ±3 °C Process temperature 23 °C ±3 °C Ambient humidity < 95 %, no condensation Airflow > 2 l/min at sensor tip |
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S230 / S231
Manuals
S230 / S231
Info sheets
S201/ S211/ S212/ S215/ S217/ S220/ S230/ S231/ S305/ S505/ S520 – CE & UKCA DECLARATION OF CONFORMITY
CE / UKCA DOC
S4C-DP S2XX Service Software: V1.4
Software
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