Hardware Manual COMBILOG 1020
39
The above values in table 4.1 are based on an internal clock fre-
quency of 5 MHz (low power version) and an ambient tempera-
ture 20°C and are only valid if LEDs and LCD-display are
switched off. At an internal clock frequency of 20 MHz (standard
version) the basic power consumption is about 25 mA, independ-
ent of filter frequency and number of configured channels, rising
up to 65 mA during measurement (for about 100 ms per channel
at 50 Hz filter).
Note
: A scan rate of 0.5 s causes an unsignificant higher varia-
tion of instantaneous values but does not affect the averaging.
4.6 Signal
Processing
Arithmetical averaging is carried out using several measuring val-
ues. The averaging interval, which is the same for all channels,
can be set to one of the values 1, 2, 3, 4, 5, 10, 15, 20, 30 sec-
onds or 1, 2, 3, 4, 5, 10, 15, 20, 30 minutes or 1, 2, 3, 4, 6, 8, 12
hours respectively. The calculated values are finally stored in the
memory.
With the configuration software the kind of averaging is select-
able: Normal averaging or averaging of wind direction (con-
sideres the discontinuity at NORTH). For counter variables not
the average, but the number of pulses is calculated.
A change of the average interval can be intitiated by certain pro-
gram conditions, thus featuring temporary higher time resolution
of measured signals.
Summary of Contents for COMBILOG 1020
Page 1: ...COMBILOG 1020 Datalogger Hardware Manual Version 3 09...
Page 2: ...Hardware Manual COMBILOG 1020 2 Issue 03 11 2005 Technical data are subject to change...
Page 4: ...Hardware Manual COMBILOG 1020 4...
Page 6: ...Hardware Manual COMBILOG 1020 6...
Page 12: ...Hardware Manual COMBILOG 1020 12...
Page 86: ...Hardware Manual COMBILOG 1020 86 Bild 8 1 Example Master Slave System...
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