Making Alarm Configuration Changes (Alarm 1 Shown); Alarm 1 Trip Level; Alarm 1 Hysteresis - GasTech D-Guard2 Operator's Manual

13.2.1

Making Alarm Configuration Changes (Alarm 1 shown)

Unlocked Menu System Screen
To Enter the relay setup screens, start by unlocking the menu
system. Hold the magnetic stylus over padlock icon for 5
seconds. After 5 seconds has expired (or correct passcode
entered), the calibration and setup option soft-keys are
activated. Select 'SET' to move to the 'Quick-Nav' screen.
Alarm 1 Current Settings Screen
The Alarm 1 setup start page displays the current settings for
this alarm. Operating the 'BACK' soft-key will move to the
previous part of the menu system (Sensor Setup - refer to
appendix a menu map).
To move to make settings to Alarm 2 instead of Alarm 1,
operate the 'ALARM 2' soft-key.
To start making changes to Alarm 1, operate the 'SETTINGS'
soft-key.
Alarm 1 Trip Level Adjusted
Once a change has been made, the 'BACK' arrow icon will be
replaced by the 'save' icon. Operating the save soft-key will
commit the changes to the detector's configuration memory.
Once saved, the back arrow icon will once again show.
Making further changes will return the back arrow icon to the
save icon.
Use the "NEXT PARAMETER' soft-key to move to the next
parameter to change (hysteresis).
Quick-Nav Screen
Once in the 'Quick-Nav' screen, operate the 'ALARMS' soft-key
to move to Alarm 1 Setup start page.
13.2.2

Alarm 1 Trip Level

To adjust the trip threshold for Alarm 1, use the up and down
soft-keys to increase or decrease the value. The keys are
accelerated to make the increments/decrements move more
quickly as the key is held.
To move back to the previous screen, operate the 'BACK'
arrow soft-key. To move to the next parameter to change, use
the 'NEXT PARAMETER' soft-key. Note: if these keys are
operated before the save icon is visible, any changes made
will not be saved.

Alarm 1 Hysteresis

13.2.3
Hysteresis may be set from 0% to 10% of the currently set
alarm set-point and operates on the alarm deactivation point.
For example if the set-point is 10ppm and the hysteresis is set
to 10%, the alarm will activate at 10ppm and deactivate at
9ppm. Use the up and down soft-keys to increment or
decrement the value. The keys are accelerated to make the
changes more quickly for keys held down.
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