myLogString.append(myO2Usage);
myLogString.append(myO2FlowPerHour);
	private void log() {		myLogString.append(myTicks);		myLogString.append(",");		myLogString.append(myO2FlowRate);		myLogString.append(",");		myLogString.append(myValveCommand);		myLogString.append(",");		myLogString.append(myValveState);		myLogString.append(",");		myLogString.append(myO2Concentration);		myLogString.append(",");		myLogString.append(myCO2Concentration);		myLogString.append(",");		myLogString.append(myO2StoreLevel);		myLogString.append(",");		myLogString.append(myO2Usage);		myLogString.append("\n");	}