Vaisala HMP155 - Manual (Page 74)

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72 _______________________________________________________________ M210912EN-C
Temperature
Table 17 Temperature Performance
Description Value
Measurement range
-80 ... +60 °C (-112 ... +140 ºF)
Accuracy with voltage output
at -80 … +20 °C
±(0.226 - 0.0028 x temperature) °C
at +20 … +60 °C ±(0.055 + 0.0057 x temperature) °C
Accuracy with passive (resistive) output
According to IEC 751 1/3
Class B
±(0.1 + 0.00167 x |temperature|) °C
Accuracy with RS-485 output (see Figure 14 below)
at -80 … +20 °C
±(0.176 - 0.0028 x temperature) °C
at +20 … +60 °C ±(0.07 + 0.0025 x temperature) °C
Temperature sensor(s) Pt 100 RTD Class F 0.1 IEC 60751
Response time (63%) for additional temperature probe in 3 m/s air flow
63%
< 20 s
90% < 35 s
0804-032
Figure 14 Accuracy over Temperature Range: Voltage and RS-
485