www.hesaitech.
Notice Please read this manual carefully before using the equipment. CAUTION To avoid violating the warranty and to minimize the chances of getting electrically shocked, please do not disassemble the device on your own accord. The device must not be tampered with and must not be changed in any way. There are no user-serviceable parts inside the device. For repairs and maintenance inquiries, please contact an authorized Hesai Technologies service personnel.
Table of Contents 1 Safety Notice 01 Appendix I Warranty and Maintenance 2 Introduction 02 3 Specifications 03 4 Installation Guide 5 10 Appendix II EC-Declaration of Conformity 11 Appendix III FCC Statement 4.1 Installation Notice 04 4.2 Mechanical Installation 05 4.3 Interface Introduction 06 UART Serial Port Data and Parameter Configuration 5.1 UART Serial Port Data Output 07-08 5.
1 Safety Notice Prior to using this product, please read the safety notices carefully to ensure the safety and to avoid any improper usage. Laser Safety Notice – Laser Class 3R Infrared Measurement Laser: Class 1 Eye Safe, wavelength: 1651 nm, <10 mW Green Indication Laser: Class 3R, wavelength: 520 nm, <5 mW Avoid Direct Eye Exposure Green indication laser aperture Infrared measurement laser aperture The device satisfies the requirements of: IEC 60825-1:2014; IEC 60825-1:2007； 21 CFR 1040.10 and 1040.
2 Introduction Hesai Drone-mounted Remote Methane Leak Detector is an ultralight and highly sensitive module that utilizes an infrared laser to remotely detect methane leaks. It can be mounted on the drones, vehicles, and ships for applications such as pipeline survey, residential area detection, etc. The detector measures the methane concentration by emitting an infrared laser and receiving the laser reflection. The reading is expressed by a methane column density (ppm*m).
3 Specifications Target Gas Methane（CH4）and methane-containing gases Operating Voltage DC 7~12 V Working Principle Tunable Diode Laser Absorption Spectroscopy (TDLAS) Rated Current <1 A 0.3 A (typical value) under 8 V power supply Sensitivity 5 (Actual) ppm*m Data Output Methane concentration, light intensity, temperature, etc.
4 Installation Guide 4.1 Installation Notice Prior to installing the detector, please read the notes carefully to ensure safe and appropriate usage: 1) 2) 3) 4) 5) 6) 7) 8) Supply the detector as required (DC 7~12 V). Provide good heat dissipation to the laser. Pay attention to static electricity. Please release the body static electricity or wear antistatic bracelet before the installation. Do not weld/replace any component unless it is recognized by Hesai. Do not unplug the laser fiber.
4.2 Mechanical Installation There are two mechanical mounting holes on the top of the detector for the horizontal installation, and four mechanical mounting holes at the back of the detector for the vertical installation. The mechanical drawing of the detector is shown below. 60.00 mm 4 mm×M4 5 52.50 mm 2 mm×M3 4 28.00 mm Figure 2.
4.3 Interface Introduction The interfaces are at the back of the detector. Descriptions of the interfaces are shown below. 2 2 Type A 4-conductor plug 3 3 1 1 Type A 4-conductor socket 4 4 Figure 3. Detector Interfaces Interface Description 1 Positive power supply, DC 7-12V, Rated Current <1A 2 Negative power supply, GND 3 Data output, TX 4 Data input, RX Table 2.
5 UART Serial Port Data and Parameter Configuration 5.1 UART Serial Port Data Output Serial Port Configuration Baud Rate: 57600; Data: 8 bytes; Stop: 1 byte; Parity: None. Data Format After power-on, the detector will use around 3 seconds to complete the self-test. If there is an issue, the detector will repeat self-testing until the problem is solved.
Data Description Error Code 000 001 002 normal operation; temperature control failure; laser diode error; 004 008 016 circuit board temperature exceeds -20~80℃; laser case temperature exceeds -20~80 °C; reference channel error. Starting character is ‘*’, and the Checksum value is obtained by the data difference or operation between '$' and' * '.
5.2 Parameter Configuration Users can use the serial port debugging tool to configure parameters for the detector. The specific configuration parameters are as follows: Functions Command DM100 Return Description Enter configuration mode “+++\r\n” “WELCOME\r\n” Serial port configuration is only valid in configuration mode Set measurement time “SSPD,%f\r\n” “AOK\r\n” Default setting: 0.1 s. Options: 0.1 s~10 s Set save power “SD,Savepower\r\n” “AOK\r\n” - Set wakeup “SD,Wakeup\r\n” “AOK\r\n”
Appendix I Warranty and Maintenance Warranty During the warranty period, Hesai will provide free maintenance service when the device can't operate due to the problem of software or hardware. But Hesai will not provide the service if the problem is caused by rule-breaking operations.
Appendix II EC-Declaration of Conformity -11-
Appendix III FCC Statement FCC ID：2ASO2DM100 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Please note that changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
Hesai Photonics Technology Co., Ltd Address: 10th Floor, Building L2-B, Hongqiao World Centre, Shanghai Website: www.hesaitech.com Sales: 021-80394947-802 Technical Support: 021-80394947-896 Business Email: info@hesaitech.com Service Email: service@hesaitech.
