REINHARDT
System- und Messelectronic GmbH
Bergstr. 33 86911 Diessen-Obermühlhausen Postfach 12 41 D-86908 Diessen Tel. 08196/7001
PM BD MWS6 E Page 17 of 34
erstellt am 02.11.2000
Manual MWS 6
Temperature sensor
Temperature measurement is based on a precision PT100. The resulting measured
value is linearised by the microprocessor. By standard, the temperature sensor is
mounted on the lower side of the weather station.
Range: from -40
°
C to + 50
°
C, measuring accuracy
±
0.3
°
C, (display also possible in
Kelvin or
°
Fahrenheit)
Humidity Sensor
is a fast responding capacitive sensor (monolithic) which is based on a dielectric with
variable humidity (capacitance). In proportion to humidity the electronics create a
signal with changing frequency which is evaluated by the microprocessor. The
sensor is also mounted on the lower side of the weather station. Together with the
PT100, it is covered by a protective cover of Gore-Tex so that it does not become
polluted or destroyed by dust or insects.
Our humidity sensor can be used in a temperature range between -40
°
C to + 50
°
C.
It is linearized to an accuracy of 2 %.
Range: from 12 to 100 %, measuring accuracy
±
2 %, display also as dewpoint
measurement in
°
C or
°
F.
Accuracy of dewpoint display is dependent on humidity and temperature. The
higher the measured values of humidity and the lower those of temperature, the
more exact is the display of dewpoint.
Maximum deviation is 1.2
°
C in the worst case.
Note: This sensor is very responsive to static charge and air pollution (dust,
aggressive gases, but also salt).
Please note that under unfavourable conditions (i.e. microbic stress caused
by moulds, bacteria) this sensor ages faster than under normal conditions.
Pressure Sensor
is a monolithic, laser-trimmed sensor for absolute pressure which is linearized to 5
hPa for the whole temperature range, i.e., the barometer is temperature compensated.
Another temperature linearisation reduces the deviation to less than 2 hPa over the
whole temperature range. The measuring signal is elaborated by an instrumental
amplifier. The sensor can be used in the temperature range of -40
°
C to + 50
°
C.
Measuring range absolute: from 700 hPa to 1100 hPa with
±
1 hPa accuracy. Display
can be reduced to 0 m above sea level (input of the local altitude in [m], display also
in mm mercury column or Inch mercury column).
Solar Sensor
This is a pyranometer which absorbs radiation between 305 and 2600 nm. Then it
measures thermically the subtraction of a black and a white surface. Two PT 1000
are the measuring sensors. Output of the measured values is in W/m
2
.
Range: from 0 to 1500 W/m
2,
measuring accuracy is
±
2 % of final value
Temperature Sensor
Humidity Sensor
Pressure Sensor
Solar Sensor
