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C H 7 E U L u x
0 . 0 / 5 0 0 . 0
C H 7 E U V
0 . 0 0 0 / 5 . 0 0 0
The EU range can only be set up using then Darca software application.
Whenever a voltage/current channel has not been set up, the initial range
is always the default EU range and is displayed as follows: -
C H 6 E U %
0 . 0 / 1 0 0 . 0
C H 6 E U V
0 . 0 0 0 / 1 . 0 0 0
Some loggers are fitted with current-only or voltage-only inputs. In these
cases, only the appropriate ranges are available in the CHANNEL SETUP
function.
4.9.3 Pulse count channel
All models have at least one pulse count channel (except 451/851
loggers). Typical applications are outputs from tipping bucket rain gauges,
optical meter readers, etc. Any sensor offering the following outputs can
be monitored: -
a) Voltage of between 4 and 6V at a pulse width of one microsecond and
a frequency of less than 2 kHz.
b) Voltage-free contact with a minimum contact time of five milliseconds
at a maximum frequency of 100 Hz.
Pulses are counted throughout the logging interval and the accumulated
total is stored at the end of this period. The count is set to zero for the
beginning of the next logging interval. The following ranges are available
for pulse count channels: -
C H 9 p u l s e
0 / 6 5 0 0 0
C H 9 k p u l s e
0 . 0 0 / 6 5 0 . 0 0
