Gasboard 8500FS-L40 Technical Specification
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SPECIFICATION Product Name: Ultrasonic Oxygen Sensor Sensor Item No.: Gasboard-8500FS-L40 Version: V0.2 Date: February 10, 2022

First Edition 1. Working temperature range improves to 5~50℃. 2. Power supply voltage changes to DC 4.75-5.25V.

Ultrasonic Oxygen Sensor Gasboard-8500FS-L40 Applications  Family and Medical Ventilator High-flow Oxygen Therapy Device Respiratory Device, Anesthetic Machine and Vaporizer Gas Detection in Binary Gas (Including O2) Description Gasboard-8500FS-L40 is ultrasonic technology 4-in-1 combined sensor solution to measure flow rate, oxygen concentration, temperature and humidity. The flow rate range of Gasboard-8500FS-L40 can be up to 40L/min. Benefit from ultrasonic technology and principle of TOF (time of flight) measurement, Gasboard-8500FS-L40 has excellent performances with advantages of...

Specification Ultrasonic Oxygen Sensor Gasboard 8500FS-L40 Specification Detect Principle Ultrasonic Technology O2 Concentration: 0%~100% vol Flow Rate: 0~40L/min Pressure Drop Sampling Interval O2 Concentration: 0.1% vol Flow Rate: 0.01L/min Data Update Time O2 Concentration: 10ms Flow Rate: 10ms Work Condition Storage Condition Power Supply Work Current Average Current <20mA; Peak Current <50mA Analog output O2 Concentration: 0.2-2.5V Flow Rate: 0.2-2.5V Life Span O2 concentration is calibrated with air and pure oxygen. The defined accuracy is with 10 data moving average output which...

Table 2. Connector Pin Definition J2 NO 4.75-12.6V, External Power Supply Input Pin Power Ground Remark: This is standard design. Description Analog output 0.2V-2.5V output pin, 0.2V corresponds to 0%Vol 2.5V corresponds to 100%Vol 0.2V-2.5V output pin, 0.2V corresponds to 0L/min 2.5V corresponds to 40L/min 4.75-5.25V, External Power Supply Input Pin Remark: This is customized design. Table 3. Connector Description Port

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

Communication Protocol UART Communication Protocol 1. Protocol Overview (1) Baud Rate: 9600 bps by default, Data Bits: 8, Stop Bits: 1, Parity: No, Flow Control: No; (2) The protocol data are hexadecimal data. For example, “46” is [70] in decimal; (3) [xx] is single- byte data (unsigned,0-255); For double- byte data, the higher byte is ahead of lower byte; (4) The sensor will send data actively by default. 2. Serial Communication Protocol Format Host Send Format Start Symbol Protocol Format Description Protocol Format Start Symbol PC sending is fixed to [11H], module response is fixed...

Communication Protocol Response Example: Response: Hexadecimal Convert into Decimal: O2 Concentration = 0*256 + 205 = 205 (20.5%) O2 Flow Value = (0*256+0)/100 = 0 (L/min) O2 Temperature Value=0*256+194=194 4.2 Read the Software Version Number Send: 11 01 1E D0 Response: 16 09 01 DF1-DF8 [CS] 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] Explanation:...

Product Code Instruction ※ Product Type XX: Product Parameter Code ※ Product Application 8500: Civilian Areas FS: Structure Serial Number ※ Product Category Gasboard: Ultrasonic Oxygen Sensor

Packing Information Drawing 4 Packing information Remark: Packing specification might be updated without prior notice. Carton Dimension Packing Material Anti-static Plastic Tray

User Attention Please pay attention to below: (1) Install the sensor as far away as possible from the heat source and heat dissipation outlet of the compressor, and install the sensor as close as possible to the oxygen outlet, and install a one-way valve to prevent the water from humidifying glass from entering sensor. (2) In order to ensure reliability and long service life, do not use or store the sensor in a place where the temperature is higher than the rated temperature, and do not use the sensor in an environment where the voltage is higher than the rated voltage of the sensor. (3)...