Vaisala PTB330TS User Manual
Page 84
User's Guide ______________________________________________________________________
82 ___________________________________________________________________M210983EN-A
Relative Humidity (HMP155)
Measurement range
0 ... 100 %
Accuracy (incl. non-linearity, hysteresis and repeatability) at
+15 ... +25 °C (+59 ... +77 °F)
±1 %RH (0 ... 90 %RH)
±1.7 %RH (90 ... 100 %RH)
-10 ... +40 °C (+14 ... 104 °F)
±(1.0 + 0.008 x reading) %RH
Factory calibration uncertainty (+20 °C /+68 °F)
±0.6 %RH (0 ... 40 %RH)*
±1.0 %RH (40 ... 97 %RH)*
Humidity sensor
HUMICAP180R
HUMICAP180RC
Response time at +20 °C in still air with a sintered PTFE filter
63 %
20 s
90 %
60 s
* Defined as ±2 standard deviation limits. Small variations possible, see also calibration
certificate.
Temperature (HMP155)
Measurement range
-10 ... +40 °C (+14 ... +104 °F)
Accuracy
-10 ... +20 °C
±(0.176 - 0.0028 x temperature) °C
+20 ... +40 °C
±(0.07 + 0.0025 x temperature) °C
Accuracy over temperature range: see
Temperature sensor
Pt100 RTD 1/3 Class B IEC 751
Response time with additional temperature probe in 3 m/s air flow
63 %
< 20 s
90 %
< 35 s