GX-3R Pro Operator’s Manual Appendix B: Maintenance Mode • 172
ZERO
FOLLOWER (page 110)
Not intended for field adjustment. Oxygen channel does not support zero fol-
lower
functionality. Factory setting for all other channels is ON.
DISP ZERO SUP (page 180) ON
(factory setting): Zero suppression menu item appears in User Mode.
OFF
: Zero suppression menu item does not appear in User Mode.
(Zero suppression menu item is always available in Maintenance Mode)
DISP ZERO FLWR (page 181) ON
: Zero follower menu item appears in User Mode.
OFF
(factory setting): Zero follower menu item does not appear in User Mode.
(Zero follower menu item is always available in Maintenance Mode)
DATE (page 181) Set the current date and time.
DATE FORMAT (page 182) MM/DD/YYYY
(factory setting): month/day/year
YYYY/MM/DD
: year/month/day
DD/MM/YYYY
: day/month/year
LANGUAGE (page 182) Set the instrument language.
Options: English (factory setting), Japanese, Italian, Spanish, German, French,
Portuguese, Russian, Korean, Chinese (TC)
MAINT PASSWORD
(page 183)
ON
(factory setting): Maintenance Mode is password-protected. Factory-set
password is 8102.
OFF
: Maintenance Mode is not password-protected.
ROM/SUM (page 184) View the firmware information for the GX-3R Pro’s sensor board(s), main board,
gas list, and view the Bluetooth version.
LCD CONTRAST (page 185) 1-50 (factory setting 20)
M.DEFAULT (page 185) Set all parameters back to their RKI factory settings.
START MEASURE (page 186) Press and release POWER MODE to begin the warmup sequence and enter Mea-
suring Mode.
* Only appears in units with a CO
2
sensor installed.
Maintenance Mode
Menu Item
Description
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