PureAire Monitoring Systems, Inc.
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4.6.4 Set Latching
This is the menu at which to adjust the relay alarm state for the two gas alarm relays and
the individual instrument fault relay. The selection permits setting the relays to a
latching or non-latching state. In a latching state, the relay will remain activated until
the user manually selects the Enter Key. In a non-latching state, the alarm relay will
automatically reset once the gas concentration has returned to 0.0ppm Methyl Bromide.
This menu will permit the setting of the two alarm relays and the fault relay settings
from a latching to a non latching state when they are activated.
From this main menu, pushing the joystick to the right will select the sub menu and the
digital display will scroll the following:
This is the menu at which to adjust the first level alarm relay state on the Air Check
Monitor.
To change this value, push the joystick right to display the relay state. The display will
Indicate
LATCH.
Pushing the joystick down will change the relay state from
LATCHING to NON-LATCHING. Press
ENTER
to accept the value.
After entering the relay state the display will default back to the
Set Latching
menu.
The display will scroll the following:
From this main menu, pushing the joystick to the right will select the sub menu and the
digital display will scroll the following:
.Set Latching…
0.0ppm
..Set Latching Relay 1…
0.0ppm
LATCHING
0.0ppm
NONLATCH
2
0
.
9
%
..Set Latching.…
0.0ppm
