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An additional range, called the EU (Engineering Unit) range, can be set up
using the Darca software application. This allows the user to specify
engineering units and a max/min scale (e.g. 0/1300 mm rain)
corresponding to either of the pulse ranges. All data in this channel will, in
this example, be stored and downloaded using mm rain as the unit; mm
rain will also be displayed in METER mode.
4.9.4 Event/digital channel
Each model has at least one event/digital channel. This type of channel is
used to log events or eight bit numbers. There are eight event inputs
available and
set
is used to select this option: -
C H 1 0 s t a t e
1 1 1 1 1 1 1 1
This shows the status of all the digital inputs. Each of the eight event lines
is stored either as
‘0’ (contacts closed/voltage low) or as ‘1’ (contacts
open/voltage high). The number 0 or 1 is called the state. If you have
selected to log in any of the event modes (see section 4.8.6) then the last
event channel will be automatically selected. A typical application is the
monitoring of the opening and closing of doors. Another option for event
channels is that the eight event inputs are displayed as a decimal number,
and this is selected by pressing
set
:
C H 1 0 s t a t e
0 / 2 5 5
4.10 The STAT function
This function describes the following status information of the logger and
is accessed by pressing
select
.
4.10.1 Battery life indication
S T A T b a t t e r y
8 . 7 V 6 5 d a y s
This displays the approximate remaining life of the internal batteries in
days, and the current voltage level of the batteries. The estimated battery
life takes into account the number of channels selected and the
log/sample intervals. The battery life figure will usually decrease if the
number of channels set to log is increased and the logging interval is
