Alarm Test, Reverse Gas Flow Procedure | Precision Trading PM5200

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.

Blender

		Air-Oxygen
	10	Air-Oxygen
	10