Specifications

IMMEDIATE VIOLATION MODE AND GAUGE MODE

WARNING: The 500AI enters Immediate Violation Mode when

a situation totally exceeds its capacity to predict an ascent pro-

cedure. These dives represent gross excursions into decompres-

sion that are beyond the boundaries and spirit of the 500AI de-

sign, and a 500AI should not be used for the dives.

During the Dive

If a ceiling much greater than 60FT (18M) is required, an Immediate

Violation Mode will be entered (Fig. 73). This situation would be preceded

by entering Delayed Violation Mode, previously described on page 62. The

500AI would then operate with limited functions in Gauge Mode during the

remainder of that dive and for 24 hours after surfacing.

Gauge Mode turns the 500AI into a digital instrument without any decom-

pression or oxygen monitoring functions. Only Current Depth, Max Depth,

Elapsed Dive Time, Tank Pressure (digital and Bar Graph), and the Ascent

Rate Indicator will be displayed, and the Nitrogen Bar Graph and O2 Bar

Graph will flash as a warning of this condition (Fig. 73).

To view Temperature and Time of Day, press the Advance (Left) button. To

activate the Backlight, press the Select (Right) button.

Fig. 73 - Immediate Violation

and Gauge Mode

(underwater)

PSI

MAX

140

210

280

350

5000

4000

3000

2000

1000