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M O D E l o g
C H E C K I N T E R V A L S
4.8.4 Logging events only
M O D E l o g
e v e n t
The event inputs are monitored every second irrespective of log and
sample intervals selected. Whenever any of the eight inputs of a
event/digital channel change between LOW (less than 0.5V DC) and
HIGH (between 4V and 5V DC) voltage levels or between contact and no
contact, the following occurs: -
a) the state of each of the eight event lines is recorded together with the
time and date of the event.
b) readings are also taken and stored from all other channels which have
been set to log.
c) if a pulse channel has been selected then the number of pulses
accumulated since the last event will also be recorded.
If no event occurs during any 18-hour period then a
‘dummy’ or
‘confidence’ recording is made. See section 4.9.4 for further details about
event channels. Please note that logging must be started in the usual way
by pressing
set
in the LOG function (see section 3.5). In this example,
only two event lines are being used. A recording is made whenever an
event occurs, which is whenever either event line changes level: -
