GAA330-M
EMISSION MONITORING SYSTEM | OI/GAA330-M-EN REV. C
55
Status LEDs
Status LEDs
Error
Maint
Power
7
8
9
6
5
4
1
2
3
0
.
The three LEDs next to the screen show the user the gas analyzer’s status.
Power
The green "Power" LED lights when the power supply is on.
Maint
The yellow "Maint" LED lights when the "Maintenance request" status signal
is active.
The
softkey appears on the screen at the same time.
Error
The red "Error" LED lights when the "Failure" status signal or the overall sta-
tus signal is active.
The
softkey appears on the screen at the same time.
Numeric keypad
Numeric keypad
Error
Maint
Power
7
8
9
6
5
4
1
2
3
0
.
The numeric keypad is located to the right of the screen, under the status
LEDs.
…
,
,
The operator can enter values directly with the:
•
numeric keys "0" through "9"
•
decimal point "." and
•
minus sign "
−
".
Examples:
•
Test gas concentration,
•
Date and time
•
Air pressure
•
Password
NOTE
Any digits displayed cannot be overwritten directly. They must be deleted
with the
BACKSPACE
or
CLEAR
key before new digits can be entered.
