Measurement

 Dew Point

 Accuracy

 ± 1 ºC Td (0 ... 20 ºC Td) ± 

 2 ºC Td (-60 ... 0 ºC Td) ± 

 3 ºC (-100 ... -60 ºC 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 sec 

 -60 °C Td -> -20 °C Td = < 30 sec

 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

 ± 1 ºC Td (0 ... 20 ºC Td) ± 

 2 ºC Td (-60 ... 0 ºC Td) ± 

 3 ºC (-100 ... -60 ºC Td)

 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/sec

 Supply

 Voltage supply

 15 ... 30 VDC

 Current consumption 

 40 mA @ 24 VDC

 General data

 Configuration

 PC Software

 S4C-DP Application

 Material

 Process connection

 Stainless steel 1.4301 (SUS 304)

 Housing

 Aluminium alloy

 Sensor

 Stainless steel 1.4301 (SUS 304)

 Metal parts

 Sinter Filter (stainless steel)

 Miscellaneous

 Electrical connection

 Screw terminals

 Protection class

 IP65

 Approvals

 Ex db[ib] IIC T4 Gb, 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

 0 ... +50 °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 º