Vaisala HMP80 Series, User Manual, Page: 10 / 54

Property HMP80N HMP80L
Operating temperature of
probe head −20 … +60 °C (−4 … +140 °F) −50 … +120 °C (−58 … +248 °F)
Operating temperature of
probe body −10 … +60 °C (−14 … +140 °F)
The identifying letter of each probe model is included in the configuration code of the probe,
shown on the side of the device. Example codes:
N 1A1S0 for an HMP80N probe, and L 1A1S0 for
an HMP80L probe.
Ø12 [0.5]
103 [4.1] 83 [3.3]
23
63 [2.5]
272 [11]
[0.91]
25
[0.98]
47 [1.9]
mm [in]
probe handle detachable
end piece
Figure 1 HMP80N dimensions, side and bottom view
25
[0.98]
47 [1.9]
mm [in]
103 [4.1]
278 [11]
63 [2.5]
485 [19]
41 [1.6]
Ø 12 [0.5]
probe handle detachable
end piece
Figure 2 HMP80L dimensions, side and bottom view
2.3 Output parameters
Values of all available output parameters are locked (showing the latest valid
value) when sensor purge or condensation prevention functions are active.
Table 4 HMP80 series output parameters
Output parameter name and unit
Absolute humidity (g/m
3
)
Relative humidity (%RH)
Absolute humidity at NTP (g/m
3
)
Relative humidity (dew/frost) (%RH)
Dew point temperature (°C) Temperature (°C)
HMP80 Series User Guide M212903EN-A
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