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DG03 Quick Start Guide
Getting Started
3 Control Buttons allow you to select mode options and access specific information. They are also used
to link the Transmitter(s), enter Settings, activate the Backlight, and acknowledge the Audible Alarm.
Left/Front – Mode (M) button Right/Front – Advance (A) button Right/Side – Select (S) button
Navigating Menus
Pressing any of the Control Buttons will turn the computer on.
Pressing A (< 2 sec) will switch between operating mode, planning, and the date, time, temp screen.
Holding M (> 2 sec) will switch between 3 operating modes: NORM (Normal Air/Nitrox Dive
Computer), GAUG (Digital Gauge Mode), and FREE (Free Dive Mode). Release M when the operating
mode you wish to select appears with the mode graphic flashing. Then press the M button to
choose that mode.
Pressing S (> 2 sec) will turn on the backlight
Pressing A and S (simultaneously for 2 sec) will access the Set Menus: F, A, U, T, and serial number
o Set F is where you program your gases.
o Set A is where you set your alarms.
o Set U is where you set wet activation, unites, deep stop, safety stop, conservative factor,
backlight duration, sampling rate, and transmitter 1, 2, and 3.
o Set T is where you set time and ate.
Pressing A (> 2 sec) while Set Menus are displayed will allow you to cycle through that menu’s
options
Programming Gas Mixes
NOTE: The Default FO2 settings each new activation period will be Air with no PO2 value
1. Press A and S (simultaneously for 2 sec) to navigate to the SET F menu.
2. Press A until GAS 1 is displayed. The Air graphic will be flashing, it remains set for Air until set
for Nitrox (21-100%).
3. Press S to scroll upward through the Set Points from Air to 21 through 100 in 1% increments.
Pressing S (< 2 sec) will step upward through Set Points.
Pressing A (<2 sec) will save the FO2 setting and revert to SURF MAIN if Air, or flash the PO2
digits if Nitrox (21 to 100).
Pressing S (<2 sec) will step upward through PO2 Alarm Set Points from 1.20 to 1.60 (ATA) in
.10 increments.
Pressing A (< 2 sec) will save the FO2 setting and access Set FO2/PO2 Gas 2
Pressing A and S (simultaneously for 2 sec) will save the setting and revert to Set F.
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Set FO2/PO2 Gas 2 and 3 are similar. Once any Gas is set for Nitrox, any other Gas set for Air will
automatically be set to 21%.
Set Units
1. Press A and S (simultaneously for 2 sec) to navigate to the SET U menu.
2. Press A until UNIT is displayed.
3. Press S to switch between the two systems.
4. Press A to save your setting and advance to the next menu.
Set Time and Date
1. Press A and S (simultaneously for 2 sec) to navigate to the Se SET T menu.
2. Press A until TIME is displayed.
3. Press S to switch between the two time formats: 12 HR or 24 HR.
4. Press A to save your setting and advance to the next menu. The Hour digits will be flashing; with
Am (or Pm) if 12 HR, blank if 24 HR.
5. Press S to adjust the hour.
6. Press A to switch to minutes.
7. Press S to adjust the minutes.
8. Press A to save your setting and advance to the next menu. The Year will be flashing.
9. Press S to adjust the year.
10. Press A to switch to month.
11. Press S to adjust the month.
12. Press A to switch to day.
13. Press S to adjust the day.
14. Press A to save your setting and return to the SET T menu.
Connecting Transmitter
1. Press A and S (simultaneously for 2 sec) to navigate to the SET U menu.
2. Press A until the graphic TMT1 appears. ON (or OFF) will be flashing.
3. Press S to switch between ON or OFF.
4. Press A to confirm ON or OFF. If ON is selected, the first digit of the code will be flashing.
5. Press S to increase the value.
6. Press A to save and advance to the second digit. Repeat to enter the rest of the transmitter’s
serial number.
7. Pressing A while the last digit is flashing will save the Link Code and advance to TMT 2. Or
pressing A and S (simultaneously for 2 sec) will save the setting and revert to SET U.
To view the full DG03 Operating Manual on the DGX website, please visit the following link:
https://www.divegearexpress.com/media/product_documents/d/g/dg03_om.pdf
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