GJG100J laser methane detector measures accurately

GJG100J laser methane detector measures accurately

It is a technology for gas concentration detection that utilizes the wavelength tuning characteristics of semiconductor lasers and the selective absorption of the laser by the tested gas. The principle of light intensity attenuation in laser methane gas detector is derived from Lambert Beer's law, which states that the measured component absorbs light of a specific wavelength, and the absorption intensity is proportional to the component concentration. By measuring the attenuation of the gas on the laser, the gas concentration can be determined.

GJG100JLaser methane detector/The sensor uses the principle of spectral absorption to measure methane gas concentration, with accurate measurement, stable operation, no need for user calibration, and can work online for a long time. The detector has multiple standard signal output forms to choose from, including 200-1000Hz frequency signals, 4-20mA (1-5mA) current signals, RS485 digital signals, CAN digital signals, which are convenient for online use with monitoring substations, PLCs, and other controllers.

GJG100J Laser Methane Detector for Accurate Measurement Product Features

1. Using spectral absorption measurement technology and built-in high-performance DSP to complete measurement signal calculation and calibration, ensuring accurate sensor measurement results.

2. Stable and reliable work, unaffected by temperature and humidity.

3. Using optical principles, no chemical reactions occur, no loss of measuring components occurs, and the service life is long.

4. The precise opto mechatronics integrated design can effectively prevent the influence of dust and water vapor, ensuring the accuracy and stability of measurement.

5. Using the principle of spectral absorption, it is not affected by other background gases such as C2H6, H2S, SO2, N2, O2, etc.

6. Adopting a high brightness LED display screen, the displayed numbers are clear and eye-catching, and the Chinese character menu operation is easy to use.

7. It has sound and light alarm function, automatic alarm for exceeding the limit, and the alarm value can be set arbitrarily.

Main technical parameters

a) The working voltage is DC9v~24V.

b) Working current ≤ 90mA (18V power supply).

c) Measurement range: 0.00~100.00% CH4.

d) Resolution 0.01% CH4

e) Measurement error: 0.00~1.00% CH4, ± 0.06% CH4; 1.00~100.00%CH4, ± 6% of the true value;

f) Output signal: (1) 200~1000Hz frequency; (2) Current of 1~5mA or 4~20mA

(3) RS485 digital signal (4) CAN digital signal.