7
GG-2
Operation
Start-up
Before applying power, make a final check of all wiring for continuity,
shorts, grounds, etc. It is usually best to disconnect external alarms and
other equipment from the controller until the initial start-up procedures are
completed.
After initial power-up, allow at least 12 hours for the sensors to stabilize
before calibrating. Because sensors are normally located at a distance from
the controller, the test time required and accuracy of the response checks
will be improved if two people perform the start-up procedures and use
radio contact.
The GG-2 control panel has a two-minute power-up delay during which
the relays are held in their normal non-alarm state, after the application of
power or a momentary power loss. This allows the sensors time to stabilize
and disables the alarm functions.
Start-Up Test:
1) One person exposes each sensor to target gas.
2) The second person stays at the control unit to determine that each sensor,
when exposed to the gas, is connected to the proper input and responds,
causing appropriate alarm functions.
Keypad
All operator functions are performed from the membrane switches on the
front of the panel.
Silence Key:
Pressing the Silence key will reset the horn relay and silence
the buzzer, until the next event occurs. The horn relay is triggered by a fault
or alarm condition, and can be programmed to trigger during a warning
condition.
Reset:
Pressing the Reset key will attempt to reset any latched relays. Any
latched relays will not reset as long as there’s an existing warning or alarm
condition. The latch-relay function can be enabled for each relay in the
Configuration menu.
LCD Operator Interface
Key Functions: Below is a list of the common key functions used for the LCD
operations:
MENU
to enter main menu
ESC
to go back to previous menu/sub-menu
ENTER
to modify the programming fields
PREV
to go back to previous screen
NEXT
to advance to next screen
YES/NO
when prompted and to accept configuration changes
Alphanumeric
for menu selections and to enter values and text
Up/Down
to navigate drop-down lists during configuration
Ch1
Ch2
0
PPM
NH3
0.0
%
NH3
POWERUP