Attaching the Transmitter to Your Regulator
Upon purchasing the Monitor 3 Air have your Authorized U.S. Divers Dealer attach the transmitter to your first-stage regulator. If this is not possible, follow the simple steps listed below to do it yourself:
STEP 1 If your regulator is attached to a charged SCUBA cylinder, turn the valve handle to the closed position and vent any air in the regulator by pressing the second-stage purge button. Remove the regulator from the cylinder. If you currently have a gauge attached to your first- stage regulator, remove it using the appropriate sized wrench, otherwise remove the high pressure (HP) port plug from your first-stage regulator using the appropriate size wrench. The HP port on all U.S. Divers regulators is clearly marked with the letters “HP”.
NOTE: The transmitter has 7/16" threads. On some early model first-stages the HP port is only 3/8". If this is the case with your regulator, you need to get a 7/16" female to 3/8" male HP adapter (U.S. Divers part number 1017-85) from your U.S. Divers dealer.
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Thread the transmitter into the HP port of the first-stage until finger-tight. Using a 3/4" open- end wrench, tighten the hose fitting until snug. DO NOT overtighten.
Attach the first-stage to a charged SCUBA cylinder. Slowly turn the cylinder valve on-off handwheel counterclockwise until the valve is completely open. Submerge the first stage in water and check for any leaks. If you detect leaks, take your regulator and transmitter to your U.S. Divers dealer and have the O-ring inspected and/or replaced. Then have the U.S. Divers dealer attach the transmitter to your regulator.
