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What’s ultrasonic? Ultrasonic is the frequency above 20,000 Hz of sound waves, it is a good direction, penetrating ability, and easy to obtain a higher concentration of sound energy, across far distance in water, can be used for distance, speed, cleaning, welding, gravel, Sterilization and so on. It has many applications in medical, military, industrial, agriculture ect. Theory of ultrasonic flow and concentration : in the pipeline full of fluid, the ultrasonic pulse transmitted by the fluid , the downstream direction and counter-current direction have different travel time, different gas flow...

Gasboard-7500 ultrasonic gas flow and oxygen sensor use the ultrasonic velocity difference between upstream and downstream to detect the gas flow and also the oxygen purity for oxygen concentrator. It is reliable and low cost for integration into the person or medical oxygen concentrator.

Feature ■ Compact shape, especially for small oxygen generator measurements ■ Measurement of oxygen concentration and flow simultaneous, LCD display output. ■ Adopt the measurement principle of the relation beween ultrasonic propagation velocity in the gas and the gas concentration, online testing, long life (more than 5 years), measurement stability, high accuracy. ■ Most able to meet the need of oxygen system for monitoring concentration. The produced by our company is still exclusive, better function, low price.

Application ■ Oxygen Generator ■ Respirator ■ Oxygen volume charge meter

Anesthetic Apparatus Baby oxygen position High-pressure oxygen stor

Alarm light singal output Fixed hole Linearity output power supply

◆Power Supply Interface J5: Voltage of 12V, ◆ Linear output interface J1: Output voltage 0 ~ 5V, with the flow and O2 corresponding linear measurements. When the voltage is 0V, the output to 0; when the voltage is 5V, the corresponding output is full scale. ◆ Serial Interface J2: is the TTL level, not directly connected with the calculation serial port. If the connection with the computer, you need to take special serial converter (TTL switch to RS232). Serial can read the measurements by the sensor and maintenance the sensor. Oxygen monitor interface shows LCD display DC12V power supply to flow...