DewPro MMR31- Specifications
Sensing Element Silicon-based polymer, capacitance principle, IC electronics
RH Range 0 to 100%
RH Accuracy +/- 2% in the range of 0% to 90%
+/- 3% in the range of 90% to 100%
Dew Point Range -15°C to +85°C (+5°F to +185°F)
Dew Point Accuracy

Better than ± 1°C (± 1.8°F) if T>30°C (86°F) and RH>40%, T<30°C (86°F) and RH>30%

Repeatability +/- 1°C (+/- 1.8°F)
Operating Temperature Range -15°C to +85°C (+5°F to +185°F); temp. signal available with second loop
Temperature Accuracy +/- 0.5°C (+/- 32.9°F)
Absolute Humidity Range 1 to 350 g/m3
Mixing Ratio Range 1 to 830 g/kg
Maximum Operating Pressure 250 psia (17 bar)
Outputs Loop current 4 to 20 mA; 16(A resolution Optional output for temperature
Electronics Microprocessor controlled
EMI/RFI Protection Meets IEC 801-1 through 801-6
Moisture Units % RH, dew point temperature in °F or °C, absolute
humidity in g/m3, or mixing ratio in g/kg, hardware selectable
Power Supply 24 V DC nominal, 12 to 32 V DC range, or tolerance +8 V DC to –15 V DC
Protection NEMA 4X (IP 66)
Probe Tube 316 SS, 1/2” (12.7 mm) diameter, insertion length 3.0” (75 mm) to 5.9” (150 mm), adjustable
Typical Probe Mounting 1/2” tube x 1/2” MNPT or 1/2” tube x G 1/2 compression fitting
Weight 4.4 lbs (2 kg)