Vaisala HMP230 User Manual download pdf (Page 77)

HMP230 SERIES

M210225en-B User's Guide

9. TECHNICAL DATA

9.1. Relative humidity

Measuring range 0...100 %RH

Accuracy (including nonlinearity and repeatability)

maximum achievable accuracy when calibrated against high quality,

certified humidity standards:

±1 %RH (0...90 %RH)

±2 %RH (90...100 %RH)

when calibrated against salt solutions (ASTM E104-85):

±2 %RH (0...90 %RH)

±3 %RH (90...100 %RH)

Response time (90 %) at +20 °C in 15 s

still air (with sintered filter)

Sensors

HUMICAP

K: humidity sensor with blue dots

on the sensor

HUMICAP

KC: combined RH and T sensor

(part no.18258HM)

9.2. Temperature

Measuring range

HMP231 -40...+60 °C

HMP233 -40...+80 / +120 °C

HMP234/235/237/238 -40...+180 °C

Typical accuracy of electronics at

+20 °C (+68 °F) ±0.1 °C

Typical temperature dependence of

electronics 0.005 °C/°C

Sensor Pt 100 RTD 1/3 Class B IEC 751

9.3. Calculated variables

Typical ranges - HMP231

dewpoint temperature -40...+60 °C

mixing ratio 0...160 g/kg dry air

absolute humidity 0...160 g/m

wet bulb temperature 0...+60 °C

enthalpy -40…+460 kJ/kg

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Vaisala HMP230 User Manual Page 77