Oceanic PROPLUS X, Operating Manual

20

PROPLUS X OPERATING MANUAL

© Pelagic, 2016

Doc. No. 12-5655-r01 (8/19/16)

ASCENT RATE BAR GRAPH

The AR (Ascent Rate) Bar Graph provides a visual representation of ascent speed (i.e., an ascent speedometer). When the ascent is faster than the 

recommended 30 fpm (9 mpm), the bar graph will flash red until the ascent is slowed.

% OF BAR GRAPH  MEANING

0 - 70%

Normal Zone

71 - 99%

Caution Zone

100%

Too Fast

TISSUE LOADING BAR GRAPH

The TL (Tissue Loading) Bar Graph represents your relative No Decompression or Decompression status. As your depth and elapsed dive time 

increase, the bar graph will grow in length, shift from green to amber, and ultimately to red (indicating a Decompression condition). As you ascend 

the bar graph recedes, indicating that additional No Decompression time is available. The ProPlus X monitors multiple theoretical nitrogen compart-

ments simultaneously. The TL Bar Graph displays the one that is in control of your dive at any given time.

DUAL ALGORITHM

®

The ProPlus X is configured with 2 algorithms which allows you to choose which set of NDLs (No Decompression Limits) will be used for nitrogen/

oxygen calculations and displays relating to Plan Mode and DTR (Dive Time Remaining) for NORM dives.

You can select DSAT or Z+ prior to new dives. Also, the selection can be changed after dives once Desaaturation Time decreases to 0:00, otherwise 

the

selection will lock in for 24 hours after the last dive.

DSAT was the original standard used by Oceanic in all of its dive computers until the dual function was implemented several years ago. It features 

NDLs

that are based on exposures and test data which also formed validation for the PADI RDP. It imposes restrictions for repetitive Decompression dives

which are considered more risky than general No Deco dives.

Z+ (the Pelagic Z+ algorithm) performance is based on Buhlmann ZHL-16c. It features NDLs that are considerably more conservative than the DSAT 

version especially at shallower depths.

To create even greater margins of safety with respect to decompression, a Conservative Factor as well as Deep and Safety Stops are available and 

can be activated for NORM No Decompression dives.

CONSERVATIVE FACTOR

When the CF (Conservative Factor) is set On, the dive time remaining, No Decompression/Oxygen Time Remaining, which are based on the algo-

rithm and used for N

2

/O

2

 calculations and displays relating to Plan Mode, will be reduced to the values available at the altitude level that is 3,000 ft 

(915 m) higher than the actual altitude at activation. Refer to the charts in the back of this manual for dive times.

DEEP STOP

When the DS (Deep Stop) selection is set ON, it will trigger after descending deeper than 80 ft (24 m). The ProPlus X then calculates (continually 

updating) a Stop Depth equal to ½ the Max Depth. 

   NOTE: The Deep Stop feature only works in Norm mode while within No Decompression times.

•  While 10 ft (3 m) deeper than the calculated Deep Stop, you will be able to access a Deep Stop Preview screen that will display the current calcu-

lated Deep Stop Depth/Time.

•  Upon initial ascent to within 10 ft (3 m) below the calculated Stop Depth, a Deep Stop screen displaying a Stop Depth at ½ the Max Depth will 

appear with a countdown timer beginning at 2:00 (min:sec) and counting down to 0:00. If you descend 10 ft (3 m) below, or ascend 10 ft (3 m) 

above, the calculated Stop Depth for 10 seconds during the countdown, the No Decompression Main will replace the Deep Stop Main display 

and the Deep Stop feature will be disabled for the remainder of that dive. There is no penalty if the Deep Stop is ignored.

•  In the event that you enter Decompression, exceed 190 ft (57 m), or a High O2 SAT (Oxygen Saturation) condition, ≥ 80%, occurs, the Deep 

Stop will be disabled for the remainder of that dive.

• The Deep Stop is disabled during a High PO2 Alarm condition, ≥ set point.

AR

%

100

DS

GAS 1

 -

AIR

FO2 PO2

-

16

80

FT

NDC

54

TL

%

1261

PSI

(v) TO MENU - (>) TO COMPASS

38

22

EDT

GTR

TOO FAST

AR Alarm Triggered

flashing