PLGA-1000

Process Laser Gas Analyzer

The PLGA-1000 Process Laser Gas Analyzer is designed to measure hydrocarbons and other gases contained in process gases at petrochemical plants. It uses proprietary IRLAM™ technology to continuously measure low concentrations of acetylene (C2H2) and carbon dioxide (CO2) as impurities in high‑concentration methane (CH4) and ethane (C2H6), delivering high‑speed, high‑sensitivity performance.

PLGA-1000

Process Laser Gas Analyzer

Why Choose PLGA-1000

Probe‑type optical system for in‑situ HCl measurement
Both laser and receiver on same‑side probe for compact operation
Single‑flange installation reduces setup complexity
Easy swap‑in replacement with existing analyzers
Stabilized optical axis ensures measurement precision
Continuous moisture correction maintains accuracy in humid gases

Key Advantages of PLGA-1000

Simplified installation

One‑flange probe mount

Minimizes installation complexity in tight stacks

Robust measurement stability

Stabilized optical axis

Ensures repeatable HCl readings over long‑term operation

Precise moisture compensation

Continuous moisture correction

Maintains accuracy in high‑humidity flue gases

Compact probe design

Laser and receiver on same side

Saves space and simplifies maintenance access

Technical Specifications of PLGA-1000

Name	Process Laser Gas Analyzer
Model	PLGA-1000
Measurement principle	NDIR: Non Dispersive Infrared
Light source	QCL: Quantum Cascade Laser
Laser class	Class 1(IEC 60825-1：2014)

[ For C2H2 Converter Inlet ]

*Components¹**	Acetylene (C2H2), Carbon monoxide (CO)
Range	C2H2 : 0 - 10000 ppm, CO: 0 - 2000 ppm
Linearity	±1.0 % full scale
Response time	Td + T90 : 3 seconds at 1.6L / min
Zero drift	±2.0 % full scale per 1 month
Span drift	±2.0 % full scale per 1 month

[ For C2H2 Converter Outlet ]

*Components¹**	Acetylene (C2H2), Carbon monoxide (CO)
Range	C2H2 : 0 - 10 ppm, CO: 0 - 10 ppm
Linearity	±1.0 % full scale
Response time	Td + T90 : 7seconds at 1.6L / min
Zero drift	±3 % full scale per 1 month
Span drift	±3 % full scale per 1 month

[ For C2 Splitter Inlet ]

*Components¹**	Methane (CH4), Ethane (C2H6), Acetylene (C2H2), Carbon Dioxide (CO2)
Range	CH4 : 0 - 2000 ppm or 0 - 5 vol% C2H6 : 0 - 50 vol% C2H2 : 0 - 50 ppm CO2 : 0 - 200 ppm
Linearity	±1.0 % full scale
Response time	Td + T90 : 3 sec at 1.6L / min
Zero drift	±2.0 % full scale per 1 month
Span drift	±2.0 % full scale per 1 month

[ Common ]

Repeatability	±1.0 % full scale
Data update cycle	1 sec
Calibration interval	1 month
Ambient temperature	-10˚C to 50˚C or -10˚C to 45˚C (no direct sun rays, including case temperature influences due to radiant heat and heat conduction) *The flow rate of the protective gas differs depending on the specification of the ambient temperature
Hazardous area classification	US, Canada: Class I, Division 2, Groups A, B, C, D T4 US: Class I, Zone 2, AEx pzc IIC T4 Gc IECEx, Canada: Ex pzc IIC T4 Gc ATEX, UKCA: II3G Ex pzc IIC T4 Gc
Protection class	IP66、NEMA4X
Wetted materials	SS316, SS304, BaF2, FKM, PTFE, Au, Ni
Gas connector size	1/4"NPT, 1/2"NPT (Option: N2 generator）
Pressure error alarm output	Three channels (Main enclosure, Optical unit, Cell) DC 5 V to 24 V, 1 A at each terminal
Communication function	Modbus®/ TCP
Analog output	Four channels (Gas concentration) 4 mA to 20 mA Max. load: 550 Ω
Contact output	Three channels (Calibration / Main alarm / Measurement) Relay contact output (isolated output) DC 5 V to 24 V, 1 A at each terminal
Digital output	One channel (For signal barrier power control relay) DC 24 V, 100 mA
Dimension	664 mm (W) x 270 mm (D) x 704 mm (H) *Protrusions included
Weight	Standard 46 kg, Max. 50 kg *Depends on product specifications
Power supply	AC 100 V to 120 V, 50 Hz/60 Hz or AC 200 V to 240 V, 50 Hz/60 Hz
Power consumption	Max. 250 VA