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The Alarms Tab
The Alarm Levels menu
Notes
The Tocsin 750 allows 3 alarm levels to be set per sensor channel. This is set up in the alarm
levels menu selection and is indicated in the screen shot shown below. See note below for
recommendations for hazardous gas detection.
Set the alarm levels
for AL1, AL2, AL3
Set the alarm action
for AL1, AL2, AL3
Options are:
Rising
Rising Latching
Falling
Falling Latching
Use the arrow keys to navigate between
channels or type in the channel to be edited
ESC returns the system to the menu selection
screen without making any changes.
select the enter key
to update your
changes to the
system.
Set alarm levels to
default values
If alarm devices, output contacts or alarm signal outputs are provided as part of continuous duty gas detection equipment and are intended to operate when
a potentially hazardous gas concentration is detected, they shall be of a latching type requiring a deliberate manual action to reset. If two or more alarm set
points are provided, the lower may be non-latching - based on user preference. Alarms shall remain in operation while the alarm condition is still present,
although audible alarms may be silenced if this audible alarm is not the only alarm.
Allow to stabilise in clean air or use instrument air at 0.5L/Min for 4 hours. If reading is greater then
5% LEL after this period replace otherwise re-zero and calibrate
Recommendations for maintenance after measuring range exceeded
