SUTO S231 Compressed Air Dew Point Transmitter For Ex
S231 Compressed Air Dew Point Transmitter for Ex Applications (-50~+20 °C Td)
· 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.
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.
- 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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