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Фрагмент инструкции
When the bleed flow is activated, some of the heliox mixture will vent to atmosphere to maintain FIO2 concentration accuracy at the low flow settings. •High Flow Blender (PM 5500 Model) 15 lpm or less • Low Flow Blender (PM 5400 Model) 3 lpm or less 4. Attach a supply line to the outlet port of the flowmeter. ALARM TEST 1. Connect the HELIO2 Blender to respective heliox and oxygen sources, pressurize the Blender and turn “ON” the flowmeter. 2. Set Oxygen Concentration Dial to 50% FIO2. 3. Disconnect or turn “OFF” the heliox supply line to the HELIO2 Blender. The Blender should alarm with a loud whistle noise. The whistle indicates the alarm is operating correctly. 4. Reconnect and activate the heliox supply line to the Blender, the alarm should stop whistling. 5. Disconnect or turn “OFF” the oxygen supply line to the HELIO2 Blender. 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. 9 HELIO2 BLENDEr HELIUM-OxygEn REVERSE GAS FLOW PROCEdURE (CE Requirements ONLY) 1. Assure bleed flow valve is not engaged. Disconnect the oxygen hose from the gas source. Remove all outlet connections from the HELIO2 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 heliox 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 leakage is >100 ml/min. Reference HELIO2 Blender Service Manual (P/N 506124). 4. Repeat steps 1-3 to check for leakage past the heliox inlet check valve. OPERATING INSTRUCTIONS CAUTION Inspect the HELIO2 Blender for visual damage before use, DO NOT USE if damaged. 1. Secure Blender to wall or pole mount bracket. 2. Connect heliox and oxygen supply lines from HELIO2 Blender to heliox cylinder and oxygen supply. 3. Connect oxygen flowmeter to Blender outlet. 4. Adjust the Oxygen Concentration Dial to the prescribed concentration. The balance of the concentration will be helium exiting the flowmeter. NOTE: The Oxygen Concentration Dial does not rotate 360°. dO NOT force dial beyond the oxygen concentration endpoints as this will damage the Blender. 5. Confirm the flow of heliox mixture to the patient. 6. Actual heliox concentration to the patient may vary due to entrainment of room air via the patient interface device. CAUTION • Refer to “Oxygen Flowmeter Conversion Chart” for corrected heliox flows. • An oxygen flowmeter should be used on the outlets of the HELIO2 Blender along with the corresponding flow conversion chart. • Actual flow from an oxygen flowmeter utilized to deliver heliox are higher than read on the flowmeter. HELIO2 BLENDEr HELIUM-OxygEn REVERSE GAS FLOW PROCEdURE (CE Requirements ONLY) 1. Assure bleed flow valve is not engaged. Disconnect the oxygen hose from the gas source. Remove all outlet connections from the HELIO2 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 heliox 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 leakage is >100 ml/min. Reference HELIO2 Blender Service Manual (P/N 506124). 4. Repeat steps 1-3 to check for leakage past the heliox inlet check valve. OPERATING INSTRUCTIONS CAUTION Inspect the HELIO2 Blender for visual damage before use, DO NOT USE if damaged. 1. Secure Blender to wall or pole mount bracket. 2. Connect heliox and oxygen supply lines from HELIO2 Blender to heliox cylinder and oxygen supply. 3. Connect oxygen flowmeter to Blender outlet. 4. Adjust the Oxygen Concentration Dial to the prescribed concentration. The balance of the concentration will be helium exiting the flowmeter. NOTE: The Oxygen Concentration Dial does not rotate 360°. dO NOT force dial beyond the oxygen concentration endpoints as this will damage the Blender. 5. Confirm the flow of heliox mixture to the patient. 6. Actual heliox concentration to the patient may vary due to entrainment of room air via the patient interface device. CAUTION • Refer to “Oxygen Flowmeter Conversion Chart” for corrected heliox flows. • An oxygen flowmeter should be used on the outlets of the HELIO2 Blender along with the corresponding flow conversion chart. • Actual flow from an oxygen flowmeter utilized to deliver heliox are higher than read on the flowmeter. 10 HELIO2 BLENDEr HELIUM-OxygEn 7. Confirm the concentration of heliox with an Oxygen Monitor / Analyzer. If necessary activate the bleed flow valve to maintain FIO2 accuracy. 8. To activate the bleed, turn and rotate the knurled collar back until it contacts the cover. 9. To deactivate the bleed, pull and rotate the collar away from the cover until bleed flo...
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