User manual VAISALA HM40 DATASHEET

[. . . ] www. vaisala. com Vaisala HUMICAP® Hand-Held Humidity and Temperature Meter HM40 The stabilization graph clearly indicates when the readings have stabilized. The HM40 is easy to use, robust and provides a reliable measurement. Features/Benefits Humidity measurement range 0 . . . [. . . ] The multilingual user interface with 10 different languages, is simple and intuitive to use. Also many other settings can be modified by the user to best suit his individual needs. In addition to relative humidity and temperature, the HM40 provides 5 calculated humidity quantities, Easy recalibration The calibration of the HM40 is easy: just send the meter back to a Vaisala Service Center for recalibration or simply plug in a freshly calibrated interchangeable HMP110 measurement probe. Alternatively, the HM40 can be user-calibrated on site using a humidity reference, e. g. the Vaisala Humidity Calibrator HMK15. Technical data Performance RElATiVE HumidiTy General <3s 2 x AA sized, 1. 5V Td, Tw, a, x, h English, German, French, Finnish, Spanish, Swedish, Chinese (simplified), Russian, Japanese, Portuguese Display LCD (140 x 160 pixels) Operation time typical 100 hours (without backlight) Operation temperature range -10 . . . 158 °F) Electromagnetic compatibility European Union directive (EMC) EN61326-1 for portable equipment Power-up time Batteries Calculated variables Menu languages Measurement range 0 . . . 100 %RH Accuracy (including non-linearity, hysteresis, and repeatability): at 0 . . . 100 %RH) Factory calibration uncertainty at +20 °C (68 °F) ± 1. 5 %RH Humidity measurement response time (90%) with plastic grid filter 17 s Stability ± 2 %RH over 2 years Humidity sensor HUMICAP® 180R TEmpERATuRE Measurement range -10 . . . [. . . ] All specifications -- technical included -- are subject to change without notice. 155 [. . . ]