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10. Special Instructions
This section contains instructions for special 1000 Series Loggers, so do
not necessarily apply to your Squirrel(s).
10.1 Alarms
·
High and low alarms individually configurable on each channel.
·
The alarm output is asserted, and the relay contact is closed,
whenever any channel is in an alarm state while logging.
10.1.1 Squirrel settings
Low Alarm
For each selected channel, a lower alarm threshold can be set or unset.
By default, no value is set.
L O W A L A R M c h 1
- - - - ° C
To select the channel, on which you require an alarm condition, press
select
until the required channel is displayed. Then press and hold
set
to
enter the edit mode.
L O W A L A R M c h 1
H O L D T O C H A N G E
A lower alarm threshold will appear for editing. The value used will be the
value that was last used by this channel before it was unset. If there has
never been an alarm set on this channel or if the previous value is not
valid for the current range, then the bottom of the current range will be
substituted. Use the
select
button to move the cursor, and the
set
button
to change the value.
L O W A L A R M c h 1
- 3 0 . 0 ° C
To remove the alarm setting, enter an illegal value. Any setting that the
Squirrel can make no sense of will cause the lower alarm threshold to
become inactive, e.g., two minuses: -
L O W A L A R M c h 1
- - 0 . 0 ° C