GX-3R Operator’s Manual Chapter 5: User Mode and Calibration • 45
Entering User Mode
WARNING: The GX-3R is not in operation as a gas detector while in User Mode.
1 . Take the GX-3R to a non-hazardous location and turn it off if it is on.
2 . Press and hold AIR, then press and hold POWER MODE. When you hear a beep, release
the buttons.
3 . The screen that appears will depend on the setting of User Mode’s PASSWORD item.
If PASSWORD is set to OFF (factory setting), continue with Step 6.
If PASSWORD is set to ON, continue with Step 4.
4 . If PASSWORD has been set to ON in User Mode, a password screen appears. The first
digit is flashing.
5 . Use AIR to select each password number then press POWER MODE to save it and move
on to the next number. To go back a number, press and hold AIR and POWER MODE
for a few seconds. To reverse the direction of change (ie. from increasing to decreasing
or vice versa):
a. Press and hold AIR.
b. Immediately press POWER MODE and then release both buttons.
6 . The BUMP menu item appears.
7 . at the top of the screen indicates that the GX-3R is in User Mode.
8 . Use AIR to move through the User Mode menu items.
* Only appears if ZSUP.DISP is set to ON in Maintenance Mode.
** Only appears if ZFLW.DISP is set to ON in Maintenance Mode.
Table 9: User Mode Menu Items
User Mode
Menu Item
Description
PASSWORD
set to
OFF PASSWORD
set to
ON
PASSWORD
M 7:49
0 0 0 0
BUMP
M 7:49
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