(15189 analog) Precipitation Sensor
Operating Instructions
Operating Instructions
Precipitation Sensor (15189 analog)
Explanations of the operating modes
1. Pulse output
The pulse output is permanent activated. The linearised pulses
are emitted with a pulse duration of 125 ms. The maximum of
output pulses are 100 output signals per minute.
Attention! To avoid damages an additional, current
limited resistor of 2...10 kOhm is necessary in that
case, when the pulse output is connected to the
power supply via jumper J12 (see fi g. 12).
The operating mode „2 wire“ is not allowed in
combination with analogue output signals.
2. Absolute sum of precipitation
At this operating mode the accumulated amount of precipita-
tion is emitted as analog signal up to the
fi
nal value of the
selected range. At exceeding of this
fi
nal value a new sum-
mation starts, i. e. the analog signal starts again on the low
level (sawtooth diagram).
3. Gliding sum of precipitation
At this operating mode the accumulated amount of precipita-
tion, which is updated each minute, is emitted within the se-
lected time-frame. At exceeding the
fi
nal value of the selected
range the analog signal remains on the highest level up to the
gliding sum over the adjusted time-frame will be lower than
the
fi
nal value again. This means that the signal is limited and
will not reset like the absolute sum.
4. Reset of the analog output signal
By an external switch at the pins "RESET ANALOG OUTPUT"
(see
fi
g. 9 to 11) the analog output can be reset to the starting
value of the output range.
This means e. g. that at the range of 4...20 mA the output will
be reset at 4 mA. The summation starts at zero again.
Blank board (Fig. 14):
Here you can register your speci
fi
c jumper setting, e. g. for service purposes.
Fig. 14
9
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