88 • Chapter 7: Changing GX-3R (Pro) Parameters
Date Format (GX-3R Pro Only)
MM/DD/YYYY
(factory setting): month/day/year
YYYY/MM/DD
: year, month, day
DD/MM/YYYY
: day, month, year
Auto Backlight (GX-3R Pro Only)
Selected
(factory setting): The instrument’s backlight automatically turns on in a low light
environment.
Deselected
: The instrument’s backlight will not automatically turn on in a low light environment.
Key Tone
Selected
(factory setting): The instrument will beep every time a button is pressed.
Deselected
: The instrument will not beep when a button is pressed.
Lunch Break
Selected
: The Lunch Break Screen displays during startup. From this screen, you can choose to
continue accumulating TWA and PEAK readings and the time in operation from the last time the GX-
3R (Pro) was used or start collecting new readings and reset the time in operation.
Deselected
(factory setting): The GX-3R (Pro) automatically starts new TWA and PEAK reading
collection and resets the time in operation at startup.
User Mode Password
Selected
: The GX-3R (Pro) prompts you for a password when you enter User Mode. The box to the
right of this selection allows the user to change the password required if
User Mode Password
is
selected (factory set password is 0405).
Deselected
(factory setting): No password is required to enter User Mode.
IR Air Zero (GX-3R Pro Only)
Selected
: CO2 channel is set to 400 ppm (0.04% volume) when performing a demand zero, auto zero,
or
AIR CAL
.
Deselected
(factory setting): CO2 channel is not adjusted during a demand zero, auto zero, or
AIR
CAL
.
IR Unit (GX-3R Pro Only)
vol%
(factory setting): CO
2
readings displayed in percent volume
ppm
: CO
2
readings displayed in parts per million