Ultrasonic oxygen sensor Gasboard 7500H technical specification
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SPECIFICATION Product Name: Ultrasonic Oxygen Senor Version: V1.0 Date: August 11, 2020

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Ultrasonic Oxygen Sensor Module Gasboard-7500H Series Applications  Family and Medical Oxygen Concentrator/Generator Medical Ventilator PSA Oxygen Concentrator and Oxygen Generator Respiratory Device, Anesthetic Machine and Vaporizer Description Gasboard-7500H series are a type of ultrasonic oxygen gas sensors, which can realize accurate and stable measurements for oxygen concentration and flow rate. Gasboard-7500H series provide a new, economical, durable option for system designers who is seeking for medical oxygen sensor for PSA oxygen generator, medical ventilator, respiratory device,...

Specification Ultrasonic Oxygen Sensor Specification Detect Principle Ultrasonic Technology Detection Range Detection Accuracy Response Time Analog output O2 Concentration: 0-2.5V (DC) O2 Flow Rate: 0-2.5V (DC) This function is just for 7500HA & 7500HA-RH Work Condition Storage Condition Work Voltage Work Current Average Current ＜16mA; Peak Current＜35mA Communication Interface Product Size Life Span Remark① Oxygen concentration detection range 20.5%~95.6% is calibrated with PSA oxygen source. If use 99.99% pure oxygen as oxygen source, should add a coefficient to make a transfer, The...

Table 1. Connector Pin Definition J2 NO 4.75-12.6V, External Power Supply Input Pin 4.75-12.6V, External Power Supply Input Pin Power Supply Input Power Input Analog output 0V-2.5V output pin, 0V corresponds to 0%Vol oxygen concentration; 2.5V corresponds to 100%Vol oxygen concentration 0V-2.5V output pin, 0V corresponds to flow rate of 0L/min 2.5V corresponds to flow rate of 10L/min Open Remark: J1 Definition is only for 7500HA&7500HA-RH Table 2. Connector Description Port

Reference Circuit Application Scenarios: UART 3.3V Output Drawing 2 UART Communication Connection Circuit

Communication Protocol UART Communication Protocol 1. The protocol data are hexadecimal data. For example, “46” is [70] in decimal; [xx] is single byte data(unsigned,0-255); In double byte, the high byte is in front of low byte; Baud Rate: 9600, Data Bits: The default is active sending, and the sending cycle is 0.5 seconds. If you need to read more other data, send the corresponding command directly to the host, and the host responds immediately. Serial Communication Protocol Format PC Send Format Start Symbol Protocol Format Description Description Protocol Format Start Symbol PC sending...

Communication Protocol Response Example: Response: Instruction: Hexadecimal Convert into Decimal: 4.2 Read the Software Version Number Send: 11 01 1E D0 Response: 16 09 1E DF1-DF8 [CS] Function: Read the software version number Instruction: DF1-DF8 refers to the ASCII code of particular version number For example: When module version number is 0.02.016, response data: Hexadecimal Convert into ASCII Code: 4.3 Inquiry Instrument Serial Number Send: 11 01 1F CF Response: 16 0B 1F（SN1）（SN2）（SN3）（SN4）（SN5） [CS] Function: Read version number for module firmware Explanation: Instrument serial...

Product Code Instruction Structure Type A: Analog Output RH: Added Build-in Humidity Sensor ※ Product Application 7500: Civilian Areas H: Structure Serial Number ※ Product Category Gasboard: Ultrasonic Oxygen Sensor

Reliability Testing Item Indoor temperature requirement: 25±2℃, humidity（50±10）%RH, after the sensor connect Make new tests in different oxygen with serial port and power on, switch over the flow in 3L/min、5L/min、8L/min respectively criterion. to make measurement of oxygen concentration and accuracy. flow, all can meet deviation Flow Performance Storing the sensor for 96H with no power under -20℃±2℃ environment condition, then After staying under normal temperature condition for 2 hours, the test the measuring deviation under normal temperature condition. Indoor temperature requirement:...

Packing Information Carton Dimension Packing Material Anti-static Plastic Tray

Consultancy & After-sales Service Contact Number: 86-27-8162 8827 Address: Fenghuang No.3 Road, Fenghuang Industrial Park, Eastlake Hi-tech Development Zone, Wuhan, China Postal Code: 430205 Fax: 86-27-8740 1159 Website: http: //www.gassensor.com.cn E-mail: info@gassensor.com.cn