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Depress the purge cover fully, then release it several times to clear particles from the
regulator, and to work the internal parts into place. To prevent uncontrolled free flows after
pushing the purge cover, keep the deflator knob on the second stage in the "-"(negative
position).
The pressure range for ATLANTIS Regulators is 135-145 psi ( 9.2-10 bar)
Use a 6mm HEX BIT SOCKET installed into the SPRING ADJUSTER (15) to change the
intermediate pressure. Turn the spring adjuster clockwise in 1/8-turn steps to raise the
intermediate pressure, and counterclockwise in 1/8 - turn steps to lower it. Always push the
purge cover briefly between each adjustment step. Do not push on the diaphragm with the tip
of the Allen wrench, or a false (higher) reading will occur. The optimal intermediate pressure
for ATLANTIS regulators is 140 psi (9.5 bar), but any setting between 135 and 145 psi
(9.2-10 bar) will provide good stable performance.