Vaisala HMT120 - Manual (Page 73)

Chapter 7 _____________________________________________________________ Technical Data
VAISALA ________________________________________________________________________ 71
CHAPTER 7
TECHNICAL DATA
This chapter provides the technical data of the HMT120.
Table 9 Relative Humidity Measurement Specifications
Property Description / Value
Measurement range 0 ... 100 %RH
Accuracy (including non-linearity,
hysteresis, and repeatability):
at 0 ... +40 °C (+32 ... +104 °F) ±1.5 %RH (0 ... 90 %RH)
±2.5 %RH (90 ... 100 %RH)
at -40 ... 0 °C and +40 ... +80 °C
(-40 ... +32 °F and +104...+176 °F) ±3.0 %RH (0 ... 90 %RH)
±4.0 %RH (90 ... 100 %RH)
Factory calibration uncertainty at
+20 °C (+68 °F) ±1.5 %RH
Humidity sensor HUMICAP ® 180R
Table 10 Temperature Measurement Specifications
Property Description / Value
Measurement range -40 ... +80 °C (-40 ... +176 °F)
Accuracy over temperature range:
at +15 ... +25 °C (+59 ... +77 °F) ±0.2 °C (±0.36 °F)
at 0 …+15 °C and +25 …+40 °C
(+32 ... +59 °F and +77 ...+104 °F) ±0.25 °C (±0.45 °F)
at -40 ... 0 °C and +40 ... +80 °C
(-40 ... +32 °F and +104...+176 °F) ±0.4 °C (±0.72 °F)
Temperature sensor Pt1000 RTD Class F0.1 IEC 60751