Chapter 2 ___________________________________________________________Product Overview
VAISALA ________________________________________________________________________ 31
Air Temperature and Relative
Humidity Sensor
0105-015
Figure 12 QMH101 Temperature and Relative Humidity
Sensor
The QMH101 Relative Humidity and Temperature Sensor is based on
Vaisala's field-proven HMP45D probe and comes with a special cable
and connector. For humidity measurements, the HUMICAP sensor is
highly accurate and offers excellent long-term stability in a wide range
of environments. Temperature measurements are taken by an accurate
Pt-100 IEC751, 1/3 Class B. Field calibration is easy with one or two
references. The replacement is simple; the probe head containing the
electronics can be quickly removed from the probe body, while a
replacement is installed and the measurement continues. Meanwhile
the other probe head is calibrated.
The probe is installed in a naturally aspirated shield made of injection
moulded UV stabilized plastic. The shield has multiplate design
providing the necessary shielding from solar radiation and
precipitation.
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