Sensors
Ammonit GmbH / 2005 - 2009
17
The display shows the value in °C:
T
T
e
e
m
m
p
p
.
.
1
1
:
:
1
1
8
8
.
.
4
4
°
°
C
C
Temperature data is stored in tenths of a Kelvin. [0°C = 273,15 Kelvin]
The humidity sensor consists of a capacitor sensor element with an integrated
converter circuit.
For the calculation enter the gradient in
Volt
humidity
rel.
%
.
F = a
·
U
F = Relative humidity
a = Gradient
U = Measured voltage
The display shows the relative humidity as a percentage:
H
H
y
y
g
g
r
r
o
o
:
:
4
4
5
5
%
%
The relative humidity values are stored in % .
2.4. Air pressure
These inputs are only available for the "METEO" versions.
A barometric sensor can be attached with an active analog output, such as the
Vaisala "PTB100A" or the "AB60" from Ammonit. The output signal is
proportional to the air pressure. You have to enter the start of the measurement
range [in hPa] and the gradient of the sensor characteristic in [hPa/V] as
parameters.
P = a
·
U + b
P = Air pressure
a = Gradient of characteristic
U = Measured voltage
b = Intercept of characteristic
The display shows the air pressure in hPa:
B
B
a
a
r
r
o
o
:
:
1
1
0
0
1
1
7
7
h
h
P
P
a
a
The data is stored in hPa.
Summary of Contents for METEO-32
Page 35: ...Ammonit Data Logger Manual 34 Ammonit GmbH 2005 2009...
Page 47: ...Ammonit Data Logger Manual 46 Ammonit GmbH 2005 2009...
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Page 73: ...Ammonit Data Logger Manual 72 Ammonit GmbH 2005 2009 4 plug Xtend Plan view Data Logger...