SF52

 Dew-point Transmitter
The SF Series of Dew-Point Transmitters from Michell Instruments can provide 4-20mA or voltage signal for either dew point or absolute humidity with excellent accuracy and linearity. The robust housing, together with an operating pressure of up to 20 barg, makes the SF Series ideal for many dew point and moisture measurement applications.





Product Features

  • Dew point or absolute humidity outputs
  • Current or voltage output signals
  • Excellent linearity and temperature compensation
  • Small size
  • Digital recalibration
  • Flush fitting filter disc for minimal flow disturbance
SF52

Technical Specification
PERFORMANCE
Measurement Range (dew point) -40 to +60°C, dew point temperature
Accuracy (dew point) Typically ±2 °C (-20 to +60°C)
Measurement Range (Absolute Humidity) -0 to 200g/m3
Accuracy (Absolute Humidity) 0.4-3g/m3 on value of absolute humidity
Stability <1°C/year
Response Time <10 sec typical (90% of the step change)
ELECTRICAL INPUT/OUTPUT
Output Signal 0–1, 0–5, 0–10 V or 4–20mA
Supply Voltage 8-30 VDC (14-30 VDC for 0–10 V output)
Supply Voltage Influence ±0.005% RH/V
Current Consumption 9 mA + load current
OPERATING CONDITIONS
Operating Temperature Probe: -30 to +70°C
Housing: -30 to +70°C
Storage: -40 to +75°C
Operating Humidity Probe: 0–95% RH (non-condensing)
Housing: 0–95% RH (non-condensing)
Storage: 0–95% RH (non-condensing)
Operating Pressure 20 Barg maximum
Temperature Coefficient ±0.05% / °C
MECHANICAL SPECIFICATIONS
Ingress Protection IP65
Housing Material Nickel-coated brass
Filter HDPE front filter
Mechanical Connections G1/2 (1/2” BSP)
Dimensions L=85mm, ø24mm (max)
Weight 320g
Cable 2m