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Cross Duct Gas Analyzer
The VGA-1000 is a flameproof tunable laser gas analyzer based on TDLAS technology that can in-situ analyze 02, CO, NH3, CO2, CH4, H2O, HCI, HF, and other gases in various complex conditions. It consists of a transmitter, receiver, and connection box. The transmitter drives the tunable diode to emit a laser of certain wavelengths, which passes through the environment to be measured, then reaches the receiver. The receiver performs photoelectricity conversion, signal processing, and spectrum data analysis to obtain the measuring result. The connection box contains a 1/0 interface, making the connection of the power cable and signal cable convenient.
FEATURES :
- Easy optical path adjusting, XY direction non-compiling adjusting.
- Small drift, long maintenance period, drift
- "Single line" spectrum technology, free from the interference of background gas.
- Integrated structure design, high stability, and reliability.
- Integrated flameproof structure, consuming less purge gas compared with positive-pressure model ' In-situ measurement without pretreatment system avoids adsorption, blockage, and damage reduces the cost.
| Optical Channel Length | 20m |
| Linearity Error | 1%F.S. |
| Repeatability | 1% |
| Span Drift | 1%F.S./half year |
| Zero Drift | ?1%F.S./half year |
| Maintenance Cycle | 2 times/year, clean optical window |
| Calibration cycle | 2 times/year |
| Type of protection | ExdlICT6Gb |
| Enclosure Rating | IP66 |
| Response Time (TOO) | 1s |
| Analog Output | 2x4-20mA output(solation max load 750? |
| Analog Input | 2x4-20mA input (temp, and press, compensation) |
| Digital Output | RS485/RS232/GPRS |
| Relay Output | 2 (24V, 1A) |
| Power Supply | 24VDC, <20W |
| Purge Gas | 0.3MPa ?0.8MPa industrial nitrogen, purification instrument air, etc. |
| Ambient Temperature | -20?+60 |
| Installation Way | In-Situ Installation |
It is an industrial cross-duct gas analyzer using TDLAS (Tunable Diode Laser Absorption Spectroscopy) for direct in-situ measurement of gases in ducts and large process streams.
The VGA-1000 can analyze gases like O₂, CO, NH₃, CO₂, CH₄, H₂O, HCl, and HF in real time for emissions and process monitoring.
TDLAS provides fast response, low drift, and high accuracy with minimal maintenance by eliminating sample extraction and optical interference.
It’s ideal for industrial emissions monitoring, furnace ducts, boiler ducts, and process stacks requiring in-situ continuous gas measurement.
Features include integrated flameproof design, easy optical alignment, IP66 rating, analog/digital outputs, and low purge gas usage for industrial reliability.
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