CTHA60 – Ambient Temperature & Humidity Measurement Probe

Integrated temperature and humidity sensor communicating via Modbus

  • Ambient temperature measurement
  • Measurement of relative and absolute humidity (in ppm)
  • Dew point calculation
  • Storage of maximum and minimum measured and calculated values.
  • RS-485 Modbus interface.
Standards:
  • EN 61000-6-2
  • EN 61000-6-4
  • EN 61010-1
Certifications
Inputs
Interface typeTransmission modeBaud rate
Temperature-30 .. -20 .. 60 .. 85oC+/- 0.5%
Relative humidity0 .. 100%+/- 2 % for RH = 10 … 90%

+/- 3% for relative humidity in the remaining range

Digital interface
Interface typeTransmission modeBaud rate
RS-485 Modbus8N1, 8N2, 8E1, 8O14,8; 9,6; 19,2; 38,4; 57,6; 115,2 kbit/s
Physical characteristics
General dimensions38 x 58 x 118 mm
Weight125 g
Degree of protectionIP65
Fixationsurface-mounted
Nominal operating conditions
Supply voltage9 .. 24 V d.c./a.cInput power < 0,5 VA
TemperatureAmbient : -20…23…60°C
Humidity< 95%No condensation
Operating positionAllIf no exposure to water
Sensor downwardsIf risk of contact with water
Warm-up time15 minutes
Air flow0.5 m/s
Safety and compatibility conditions
Electromagnetic compatibilityNoise immunityaccording to EN 61000-6-2 standard
Sound emissionsaccording to EN 61000-6-4 standard
Isolation between circuitsbasicaccording to EN 61010-1 standard
Pollution degree2
Installation categoryIII
Maximum operating voltage (phase-earth voltage)50V
Altitude< 2000 m

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