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Blender
Air-Oxygen
ALARM TEST
1. The Air-Oxygen Blender is installed and the flowmeter is turned
on. Disconnect or turn off the air supply line to the Air-Oxygen
Blender.
2. The Blender should alarm with a loud whistle noise. The whistle
indicates the alarm is operating correctly.
3. Reconnect and activate the air supply line to the Blender, the
alarm should stop whistling.
4. Disconnect or turn off the oxygen supply line to the Blender.
5. The Blender should alarm with a loud whistle noise. The whistle
indicates the alarm is operating correctly.
6. Reconnect and activate the oxygen supply line to the
Blender, the alarm should stop whistling.
7. If alarm fails to function properly, DO NOT USE.
REVERSE GAS FLOW PROCEDURE
(CE Requirements ONLY)
1. Disconnect the oxygen hose from the gas source. Remove all
outlet connections from the Blender to ensure that there is no
outlet flow.
2.
Place the free end of the oxygen supply hose under water. While
gradually increasing the air supply pressure from 30-75 psi (2.07-
5.17 bar) check for leakage past the oxygen inlet check valve.
3. Replace the Duckbill Check Valve in the oxygen inlet if
bubbles indicate leakage. Reference Air-Oxygen Blender
Service Manual (P/N 504827.)
4. Repeat steps 1-3 to check for leakage past the air inlet check
valve.
OPERATING INSTRUCTIONS
CAUTION
Inspect the Air-Oxygen Blender for visual damage before
use, DO NOT USE if damaged.
1. Turn “ON” the Air and Oxygen supply.
2. Adjust the Oxygen Concentration Dial to the prescribed
concentration.
NOTE: The Oxygen Concentration Dial does not rotate
360°. DO NOT force dial less than 21% or over 100%
oxygen, this will damage the Blender.