The LS4 series laser methane sensor is a high-precision, miniaturized gas sensor designed based on Tunable Diode Laser Absorption Spectroscopy (TDLAS) technology. It features small size, low power consumption, stable performance, long service life of sensor components and high sensitivity. • Good stability, no calibration required; • Unique selectivity to methane, not interfered by other gases, water vapor or dust; • Fast response speed, wide measurement range and high measurement accuracy; • Shockproof, waterproof and dustproof performance; • TTL serial port and analog signal dual output;

Table 1: Room Temperature Linear Test Data

Size and Pin Definition Pin symbol TTL Serial Port Data Usage Guide l.Porter rate: 38400 Data Bit: 8; Stop Bit: 1; Parity Bit: None 2. Data Packet Format Data Area Tab Check Area Carriage Return Carriage Return 1. A data packet is a string composed of ASCII codes. 2. Checksum = 100 (Hex) - (function code + data 1 + ... + dataN).For example: Ningxia Maiya Sensor Technology Development Co., LTD

Laser gas sensor 4series If the calculated checksum is 0x89, the corresponding high byte is 0x38 (ASCII character "8") and the low byte is 0x39 (ASCII character "9"). If the calculated checksum is 0xAC, the corresponding high byte is 0x41 (ASCII character "A") and the low byte is 0x43 (ASCII character "C"). 3. F1 Command (Enter F1 Active Transmission Mode) Instruction: When it is necessary to enter F1 automatic data transmission mode (the sensor is in F1 automatic data transmission mode at factory), send the following command. After receiving the command, the sensor will periodically print and...

It is recommended to use a dedicated adapter for external wiring welding during independent testing. For products that have passed explosion-proof inspection, do not arbitrarily replace or modify components and structures that affect explosion-proof performance. Installation must comply with the requirements of GB/T 3836.15-2017 Explosive Atmospheres - Part 15: Design, Selection and Installation of Electrical Installations. Do not attempt to disassemble or repair the sensor by yourself. Ningxia Maiya Sensor Technology Development Co., LTD Address: Yinchuan Zhongguancun Innovation Center A Building,...