SPECIFICATION Product Name：Ultrasonic Oxygen Senor Version: V1.0 Date: August 09, 2019

Content First Edition

Ultrasonic Oxygen Sensor Module Gasboard-7500F Family and Medical Oxygen Concentrator/Generator Measurement the Flow of Clean Gas Gas Detection in Binary Gas (Including O2) Description The Gasboard-7500F oxygen sensor is cost-effective and efficient sensor for measuring oxygen flow in binary gases. By adopting ultrasonic detecting technology, the sensor has remarkable characteristics, such as great stability, quick response, no need calibration, maintenance-free, no drift etc.. The oxygen flow rate range is measured up to 40L/min, can be widely used in family and medical concentrator/generator....

Ultrasonic Oxygen Sensor Specification Detect Principle Ultrasonic Technology Detection Range Detection Accuracy Response Time Work Condition Storage Condition Work Voltage Average Work Current Communication Interface Product Size Life Span

Pin Definition Pin Definition List J1(Optional) NO Power Ground Description +3.3V/100mA Power Supply Output /5V-12V Power Supply Input Oxygen Concentration （Customized Option） 0-5V Output Pin, Correspond 0-40L/min 3 Oxygen Flow Rate Power Ground Alarm Output Description 5-12VDC, External Power Supply Input Pin Description Alarm Output (Customized Options） No Definition Power Ground

Reference Circuit Application Scenarios： UART TTL 3.3V Output Drawing 1 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); (xx) is double byte, signed (-32768 to +32767), the high byte is in front of low byte. Behind “－” is remark. All data are integer, may there is (100,10,1) times corresponding relationship with the actual display data (sensor related). Baud Rate：9600, Data Bits: 8, Stop Bits: 1, Parity: No. Platform cannot send the data to PC automatically, module responses related data only after PC send command. The byte length of the...

Serial Protocol Order Number List Function Name Read the measurement result In addition to returning measurement results, also return some status information Set atmospheric pressure at the current environment Read the software version number Read the software version number Inquiry instrument serial number Inquiry instrument serial number Function Description Detailed Description 4.1 Read the Measurement Result Send ：11 01 01 ED Response ：[ACK] 09 01 (O2) (Flow1) (T) (Flow2) [CS] Function ：Read the measurement result Description ： 1. (O2) is concentration of O2, unit is %；(FLOW1) is the standard...

Communication Protocol Set the atmospheric pressure value as 101.3Kpa [DF1] = (101.3*10)/256=03; [DF2] = (101.3*10) %256=F5; Set [DF1] as 03，[DF2] as F5 3. [DF1] [DF2] = 0Xff 0xff read the value of atmospheric pressure 4.3 Read the Software Version Number Send ：11 01 1E D0 Response ：[ACK] 09 1E [CH1] [CH2] [CH3] [CH4] [CH5] [CH6] [CH7] [CH8] [CS] Function ：Read the software version number Instruction ： Read the software version number. [CHx] is software version number, refers to the ASCII code For example：When module version number is 0.02.016, response data: Hexadecimal Convert into ASCII Code:...

Reliability T esting 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 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：-10±2℃, test the measuring...

Product Code Instruction ※ Structure Type F：Structure Serial Number ※ Product Application 7500：Civilian Areas ※ Product Category Gasboard: Ultrasonic Oxygen Sensor

Packing Information Carton Dimension Packing Material Anti-static Plastic Tray

User Attention Please confirm before starting to test: (1) Sample gas needs to be pretreated to make sure that the sensor entrance is clean, no water and no oil. (2) Connect the sensor vent pipe with outside air to ensure the safety of emissions and ensure no blocking phenomenon. (3) Do not smoke or use open flame near the sensor. (4) The integrity of the pipeline must be ensured in use to avoid gas leakage caused by pipeline rupture. When the leaked gas contains poisonous and explosive gases, it may cause serious accidents. (5) When exhausting, please connect the exhaust pipe to the outdoor...