HMC03M

HMC03M

HMC03M Heated Humidity Sensor for Radiosondes
  HMC03M is optimized for short response time even at very low temperature in the upper atmosphere. It combines on a silicon substrate a capacitive relative humidity sensor and a heating resistor (heater).
Detail The heater is dedicated for fast recovery of the humidity sensor after condensation or icing. This leads to outstanding measuring performance in high-end weather observation.
Key Features HMC03M Very short response time even at low temperature
  Fast recovery after condensation or icing due to sensor heating
  High sensitivity and outstanding linearity
Technical data HMC03M  
NOMINAL CAPACITANCE C0 (AT 30 °C / 86 °F) 120 ± 40 pF
SENSITIVITY (FOR C0 = 120 PF, IN AVERAGE) 0.41 pF / % RH
RESPONSE TIME T63 (SEE GRAPH FOR DETAILS) < 8 sec. at -30 °C (-22 °F)
  < 11 sec. at -40 °C (-40 °F)
WORKING RANGE TEMPERATURE -80…60 °C (-112…140 °F)
WORKING RANGE HUMIDITY 0…100 % RH
LINEARITY (0…98% RH) < ± 2 % RH