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Invacare IRC5PO2 Oxygen Equipment User Manual

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SECTION 22—TIMING

Part No 1148070 75 Perfecto

2

™

Manual Tuning

NOTE:Forthisprocedure,refertoFIGURE 22.2.

1. Turnpoweroff()andunplugtheunit.

2. Removecabinet.RefertoRemovingCabinetonpage 23.

3. PlugunitinbutDONOTturnon()untilinstructedtobelow.

4. LocatethetimingswitchontheP.C. board.

5. Insertasmallcommonorflatheadscrewdriverintotheadjustmentscrewofthetiming

switch.

6. Setthetimingswitchinitiallyatthenumber“7”position.

7. Turnuniton()andwait15minutesforunittostabilize.

8. Ifafter15minutesofruntimetheconcentrationisbelowspecification,changesetting

toanumberonepositionlowerthantheprevioussetting.

9. Letunitruntenminutes.Ifconcentrationislowerstill,changetheswitchtonumber

twopositionshigher.

NOTE:Youwillfindthattheconcentratorwillperformbetterateitherthehigherorlowersetting.

Thenormaladjustmentrangeisbetweentimingpositions3andA.

10. Continuetochangesettingonestepatatime(upordown)untiltheconcentrationis

thehighestvalueachievable.

11. Onceconcentrationhasreachedspecification,retimingiscomplete.

12. Reinstallcabinet.RefertoRemovingCabinetonpage 23.

FIGURE 22.2 Manual Tuning

/O

I

I

Manual Timing

Switch

P.C. Board

Control Panel

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