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Gasboard 7500H series oxygen sensor technical specification

Gasboard 7500H series oxygen sensor technical specification
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Gasboard 7500H series oxygen sensor technical specification - 1

SPECIFICATION Product Name: Ultrasonic Oxygen Senor Sensor Item No.: Gasboard-7500H Gasboard-7500HA Gasboard-7500HA-RH Gasboard-7500HA-BC

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Gasboard 7500H series oxygen sensor technical specification - 2

Content First Edition - Replace term “response time” with “data update time” Add footnote to explain analog output to concentration conversion O2 concentration detection range changes from 20.5%~95.6% to 0 ~ 100%

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Gasboard 7500H series oxygen sensor technical specification - 3

Ultrasonic Oxygen Sensor Module Gasboard-7500H Series Family and Medical Oxygen Concentrator/Generator Medical Ventilator Respiratory Device, Anesthetic Machine and Vaporizer Flow Measurement of Clean Air Gas Detection in Binary Gas (Include O2) Description Gasboard-7500H series is 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,...

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Gasboard 7500H series oxygen sensor technical specification - 4

Specification Ultrasonic Oxygen Sensor Gasboard 7500H Series Specifications Model Detect Principle Ultrasonic Technology O2 Concentration: 0%~100% Detection Range 1) Flow Rate: 0~10L/min O2 Conc.: ± 1.5%FS Accuracy 2) Flow Rate: ±0.2L/min O2 Concentration: 0.1% Resolution Flow Rate: 0.1L/min Data Update Time Work Condition Storage Condition Work Voltage Work Current Average Current ≤ 35mA; Peak Current < 50mA Communication Interface Product Size Life Span Note: 1) 7500H series are calibrated with PSA oxygen source and the concentration output is for PSA oxygen with detection range 20.5% to...

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Gasboard 7500H series oxygen sensor technical specification - 5

Drawing 1 Gasboard-7500H Series Pin Definition 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 Ground Power Ground Analog output 200mV-2500mV output pin, 200mV corresponds to flow rate of 0L/min 2500mV corresponds to flow rate of 10L/min 200mV-2500mV output pin, 200mV corresponds to 0%Vol oxygen concentration; 2500mV corresponds to 100%Vol oxygen concentration Remark: J1 Definition is only for 7500HA, 7500HA-RH Table 2. Connector Description Port

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Gasboard 7500H series oxygen sensor technical specification - 6

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

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Gasboard 7500H series oxygen sensor technical specification - 7

Communication Protocol UART Communication Protocol 1. Protocol Overview 1) Baud Rate: 9600, 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); In double byte, the high byte is a head of low byte; 4) The sensor will send data actively by default and the sending interval is 0.5 seconds. If you need to read more other data, send the corresponding commands directly to the host and the host will respond immediately. 2. Serial Communication Protocol Format Host Send...

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Gasboard 7500H series oxygen sensor technical specification - 8

Communication Protocol Response Example: Response: Remark: Hexadecimal convert into Decimal: CD is 205; C2 is194 O2 Concentration =0*256 + 205=205 4.2 Read the Software Version Number Send: 11 01 1E D0 Response: 16 09 1E DF1-DF8 [CS] Function: Read the module’s firmware version Description: 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 the module’s...

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Gasboard 7500H series oxygen sensor technical specification - 10

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

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Gasboard 7500H series oxygen sensor technical specification - 11

Reliability Testing Item Flow Performance Indoor temperature requirement: 25± 2℃, humidity （50± 10）%RH, after the sensor connect 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. Make new tests in different oxygen flow, all can meet deviation criterion. Storing the sensor for 96H with no power under -20℃± 2℃ environment condition, then test the measuring deviation under normal temperature condition. After staying under normal temperature condition for 2 hours, the test all can meet deviation...

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Gasboard 7500H series oxygen sensor technical specification - 12

Packing Information Carton Dimension Packing Material Anti-static Plastic Tray

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Gasboard 7500H series oxygen sensor technical specification - 13

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)...

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