10
GP-4000 C
www.istsports.com
Altitude icon
No icon
1500m - 2600m (4920ft - 8528ft)
600m - 1800m (1968ft - 5904ft)
0m - 900m (0ft - 2952ft)
Range representation
2300m - 6000m (7544ft - 19680ft)
Error (icon blinks) + 6000m (+ 19680ft)
Icon explainations:
Battery indicator icon (if shown): It will appear in all modes (except PC Transfer
mode) when the battery is on low power (voltage less than 2.7V). You can not go to
DIVE mode while the battery indicator icon is ON. Be sure to replace the battery
when this icon appears.
Altitude icon (if shown): The computer automatically measures the location's
altitude and display accordingly.
NITROX icon: This icon is on if FO2 value is entered (in Dive Set mode). If no
value is entered, then this icon flashes.
PGT (Pressure Gas in Tissue) indicator (if shown): This indicates the level of
Nitrogen accumulated in the body by a nine-level bar graph (DIVE mode only).
OLI (Oxygen Limited Indicator) indicator (if shown): This indicates the level of
Oxygen accumulated by a eight-level bar graph (DIVE mode only).
DIVE / GAGE mode icon: The selected mode is shown.
Surface timer (if shown): This icon comes on when a dive is deemed completed .
A dive is counted when being submerged for more than 3 minutes and a depth
greater than 1.2m / 4ft has been reached. If a descent is detected by the computer
within 10 minutes of surface time, the previous dive will continue. Surface time is
continued for a maximum of 48 hours.
Desaturation count-down timer (if shown): This indicates the time remaining
until nitrogen dissipates from the body. (DIVE mode only).
Don’t Fly icon (if shown): It appears while desaturation time is being counted. If
desaturation time is less than 12 hours, this icon will disappear after 12 hours
(DIVE mode). If in GAGE mode, this icon will disappear after 48 hours.
