SOLUTIONS FOR OXYGEN CONCENTRATORS Sensors and Switches Application Note Oxygen concentrators reduce the level of nitrogen in the air, and increase the oxygen level. BACKGROUND Oxygen concentrators are used to assist patients with respiratory illnesses or lung disease, who have difficulties in absorbing oxygen into the bloodstream. Honeywell manufactures many sensors and switches that may be used in oxygen concentrators. Our solutions are designed to help control pressure and airflow, detect failures, enhance equipment performance and efficiency and act as a high pressure warning within the oxygen concentrator. (See Figure 1.) An oxygen concentrator receives air, purifies it and then distributes the newly formed air. Typically, air is composed of 80 percent nitrogen and 20 percent oxygen. An oxygen concentrator increases the oxygen content to over 90 percent. Sieve bed filters contain Zeolite, which removes the nitrogen from the air. Oxygen concentrators can be used in hospitals, home and some devices are portable. SOLUTIONS FOR OXYGEN CONCENTRATOR APPLICATIONS • Pressure Sensors – Board Mount • Pressure Sensors – Heavy Duty • Airflow Sensors • Oxygen Sensors • Magnetic Sensors • Basic and AML Switches • Pr

Figure 1. Solutions for Oxygen Concentrator Applications 1 Pressure Sensors - Board Mount MicroPressure MPR Series, Basic ABP Series Molecular sieve Molecular sieve bed 1 1 bed Four way solenoid valve 2 Pressure Transducers - Heavy Duty MIP Series, MLH Series Pressure reducing orifices Cross over valve 3 Airflow Sensors AWM90000 Series 4 Oxygen Sensor OOMLF Series Molecular sieve bed 2 Heat exchanger Electronic control circuit 6 Basic and AML Switches AML Series (PB and Rockers) DM, ZD, ZW, V15W Basics; Product tank (oxygen) Flow meter adjustment valve Pressure Switches Pressure regulator TABLE...

AIRFLOW SENSORS OXYGEN SENSORS MAGNETIC SENSORS OOMLF Series • Monitor a patient’s breathing to detect when the patient inhales, so that oxygen is only supplied when required and isn’t wasted. This helps to minimize the overall system size by supplying oxygen only when required • Measure and control oxygen concentration level of the air delivered to the patient • Control motors and sense motor speed The AWM90000 Series (see Table 2) is designed to detect ultra-low flow levels at 0,1 cm3. This enhanced sensitivity may be used to detect when the patient exhales and when the system should reduce...

BASIC AND AML PUSHBUTTON SWITCHES PRESSURE SWITCHES DM, V15W, ZW Series; ZD Series; AML Series Function/Action • Used as on/off operator controls, as well as detection for covers, panels and doors MICRO SWITCH basic switches can be used as presence/detection for covers, panels and doors acting as a fail-safe to prevent switching the machine when doors/panels are ajar. Several series are sealed to protect against fluids (see Table 5). MICRO SWITCH AML Series are available as pushbuttons, key switches and rockers/paddles (see Table 5). They are often used in medical equipment as off/on operator...

IMPROPER INSTALLATION • Consult with local safety agencies and their requirements when designing a machine control link, interface and all control elements that affect safety. • Strictly adhere to all installation instructions. Failure to comply with these instructions could result in death or serious injury. FOR MORE INFORMATION Honeywell Sensing and Internet of Things services its customers through a distributors. For application assistance, current specifications, pricing, or the nearest Authorized Distributor, visit sensing.honeywell.com or call: +1 305 805 8188 Greater China Specifications...