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4.8.11 Types of signals which will trigger the logger
If external contacts are used, logging will start when they close
(connecting pin 13 to pin 14), and stop when they open. Alternatively,
voltage levels can be used instead of contacts. In this case, a low level of
less than 0.5V DC will start logging and a high level of between 4V and 6V
DC will stop logging.
4.8.12 Memory mode
You can choose how the memory is used to store the readings.
4.8.13 Hold memory
M O D E m e m o r y
s t o p w h e n f u l l
The logger will stop when all available memory has been used. Note that
you may view remaining free memory at any time by entering the LOG
function and pressing
select
(see section 4.1.2), and the memory size
may be restricted down to a minimum of 1K in the STAT function (see
section 4.10.3).
4.8.14 Continuous memory
M O D E m e m o r y
c o n t i n u o u s
The logger overwrites the oldest recordings once the memory is full. This
ensures that you always have the most recent data stored in the logger
irrespective of how long the logger has been logging. However, only one
run is allowed and if the logger is stopped and a restart is attempted the
following be displayed: -
voltage
contacts
open
contacts
closed
high
low
time
enabled
recording:
enabled
disabled
disabled