EmailThe LGT-3000 is an in-situ through-type instrument developed based on TDLAS technology, which can conduct in-situ measurement of O2, CO, NH3, CO2, CH4, HCl, HF and other gases, as well as simultaneous monitoring of 1~4 components. The main functional module consists of a transmitting unit and a receiving unit. The transmitting unit mainly drives the semiconductor laser to emit laser light of specific wavelengths, which pass through the measured environment, and then the receiving unit carries out the optoelectronic conversion, signal processing and spectral data analysis so as to obtain the measurement results.
Built-in online deflection correction module with online deflection correction function;
Positive pressure explosion-proof design to be used in the explosive atmospheres of Zone 1 and Zone 2;
Single-line spectrum technology: free from cross interference of background gases;
Integrated structure: no moving parts, with good reliability and stability;
Cost-effective multi-frequency sinusoidal modulation method for driving dual lasers to realize multi-parameter measurement (1~4 components);
In-situ measurement: with no need for a pretreatment system to avoid sampling adsorption, blockage and component damage in preprocessing, reducing operation cost.
Suitable for many environmental and industrial process gas emission monitoring.
| Optical channel length | ≤20m |
| Linearity error | ?1%F.S. |
| Zero drift | ?1%F.S./half a year |
| Span drift | ?1%F.S./half a year |
| Response time (T90) | ≤30s |
| Communication interface | RS485/RS232 |
| Analog input | 2*4-20mA input (temperature, pressure compensation) |
| Analog output | 2*4-20mA output (isolation, max load of 750Ω) |
| Ex-mark | Ex db opis pxb IICT6 Gb |
| Protection gas | (0.3~0.8) MPa nitrogen, purified instrument air |
| IP grade | IP65 |
| Ambient temperature | -20℃~+60℃ |
