RKI Instruments GX-2003 Manual - Manual (Page 67)

GX-2003 Operator’s Manual Using Setup Mode • 60
1. From the main menu, place the cursor next to the CAL. EXPIRED
ACTION menu item. Press and release the POWER ENTER
button.
2. Use the ▲AIR or (SHIFT) ▼ button to display the desired setting.
3. Press and release the POWER ENTER button to save the setting
and return to the main menu.
Updating the LCD Contrast Setting
NOTE: The LCD contrast setting can also be adjusted in Calibration
Mode. See “Adjusting the LCD Contrast” on page 38.
The contrast setting controls the LCD contrast. Select the setting so the
characters on the display are easy to see. It can be set from 0 to 15. The
higher the setting, the darker the characters and LCD background.
1. From the main menu, place the cursor next to the CONTRAST
menu item. Press and release the POWER ENTER button.
2. Use the ▲AIR or (SHIFT) ▼ button to adjust the setting until the
characters on the LCD are easy to see.
3. Press and release the POWER ENTER button to save the setting
and return to the main menu.
Updating the GX-2003’s Serial Number
Every GX-2003 is factory programmed with a unique serial number
that matches the serial number on the serial number label. Use the
following procedure if you wish to change the serial number.
1. From the main menu, place the cursor next to the SERIAL No.
menu item. Press and release the POWER ENTER button. The first
character of the serial number is flashing indicating it can be
changed.
CALIBRATION EXPIRED
ACTION
CONFIRM TO USE
21:09
CONTRAST
5
21:09