Product Name: Ultrasonic Oxygen Sensor Model No: Gasboard-8500D Series Version: V0.3 Date: Aug 7, 2019

First revision 1. Real product photo, physical dimension drawing, pin definition drawing modified by approved products; 2 2. The detection precision of product specification parameter was modified from“±1.8%FS @(10~45)℃”to“±3%FS @(5~45)℃”. Working voltage was modified from “DC 5-12V”to “DC 4.75-12.6V”. 3 Specification fonts was modified to Song typefac

Ultrasonic Oxygen Sensor Gasboard-8500D Series Family portable oxygen concentrator, medical concentrator, large oxygen concentrator. Family ventilator, medical ventilator. The binary gas (include oxygen) detection. High-flow nasal cannula oxygen therapy ventilation Positive airway pressure ventilation Description: Gasboard-8500D series ultrasonic oxygen sensors are an economical gas sensor used to detect oxygen concentration in binary gases. By adopting ultrasonic detecting technology, these sensors are very stable, high accuracy, maintenance-free, no drift and no need to calibrate, response...

Specifications Ultrasonic Oxygen Sensor Specifications Sensor Type Detection Method Detection Range① Ultrasonic Principle Detection Accuracy Detection Resolution Response Time Working Temperature Storage Temperature Working Voltage Average Working Current 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 formula is: Target concentration = (sensor reading * 1.142) - 3.42 Oxygen concentration detection range 20.5%-100% is calibrated with 99.99% pure...

Ventilation Direction (Up and Down both OK) Drawing 1 Gasboard-8500D Series Pin Definition Drawing 4.75-12.6VDC power supply input UART-Rx receiving (3.3V/5V compatible) Connector Type Port J2

Reference Circuit Application Scenarios: UART TTL serial output Drawing 2 UART Communication Connection Circuit

Communication Protocol  UART Communication Protocol 1 Protocol overview 1） Baud rate:9600, DataBits: 8, StopBits: 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); In double byte, the high byte is in front of low byte; 4） 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. 2 Serial communication protocol formats PC send format Start symbol Protocol...

4.2 Read the software version number Send: 11 01 1E D0 Response: 16 09 1E DF1-DF8 [CS] Function: read version number for module firmware Explanation: DF1-DF8 refers to the ASCII code of particular version number. For example: when module version number is 0.02.611, response data: Hexadecimal convert into ASCII code: 0.02.611 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 number of output software. SNn range is 0~9999,5 integer type constitute 20 serial number....

Drawing 3 External Dimension（ Unit: mm, Tolerance:±0.2mm）

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

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

Consultancy & After-sales Service Cubic Sensor and Instrument Co.,Ltd 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：8627-8740 1159 Website：http://www.gassensor.com.cn E-mail：[email protected]