GX-3R Operator’s Manual Appendix A: Maintenance Mode • 101
Viewing the ROM/SUM (ROM/SUM)
The ROM/SUM screen shows the instrument’s firmware version and the firmware checksum.
1 . While in Maintenance Mode, press AIR to scroll to ROM/SUM.
2 . Press and release POWER MODE. The screen cycles through the main board’s ROM/
SUM and the sensor board’s ROM/SUM. The ROM is the top value and the SUM is the
bottom value.
3 . Press and release POWER MODE to return to the ROM/SUM menu item in
Maintenance Mode.
4 . See “Entering Measuring Mode (START)” on page 102 to enter Measuring Mode.
Performing a Default (M.DEFAULT)
Performing a default operation in Maintenance Mode returns all parameters to their RKI
factory settings.
1 . While in Maintenance Mode, press AIR to scroll to M.DEFAULT.
2 . Press and release POWER MODE to continue. Press and release AIR to return to the
M.DEFAULT menu item in Maintenance Mode.
MAIN ROM
M 7:49
2E86
35709
SENS. ROM
M 7:49
C1E3
35707
M.DEFAULT
M 7:49
YES / MODE
M 7:49
NO / AIR
M 7:49