Online Gas and Liquid Analyzers (G800/L800)

Measure specialty gases in other gases or
liquids without interference

Measure specialty gases in other gases or liquids without interference

Gas and Liquid Analyzers
The gas analyzer (G800) and liquid analyzer (L800) are online analyzers for monitoring compound concentrations in gases and liquids.
Sophisticated computations and a high-resolution optical system allow accurate measurement of compounds without interference, even at low concentrations.

Highlights

Measures nearly 20 components in both gases and liquids, including nitrogen compounds, phosphates, hydrogen sulfide, hydrocarbons, and organics.
The capacity to assess multiple measurable components allows units to be customized for specific applications or sites.
Responsive, real-time monitoring—results in as little as 10 seconds
Measure multiple components with a single unit.
Highly accurate analysis even for trace concentrations
Long equipment life with no need for frequent maintenance; typical maintenance requirements include just annual parts replacement and calibration.
Does not interfere with measured substances, applying the manufacturer's original, internationally patented technology
Wide measurement range

Gas Analyzer

Specifications

Principle

Gas：UV spectroscopy
Water：UV spectroscopy and other methods
Target gas concentrations are calculated based on the difference in UV absorption between the spectrum measured in empty space and measured with the target gas present.

Applications

Gas Analyzer

・Biogas or natural gas quality and safety management（H₂S・NH₃・R-SH）
・Hazardous gas emission monitoring at factories（NH₃・NO・NO₂・SO₂・H₂S）
・Air pollution analysis（H₂S・CO₂・O₃・CH₄）

Liquid Analyzer

・Potable water quality control: Measurement of trace impurities in water（NO₃⁻・Cl₂ ・TC・TN・Turb）
・Wastewater management measurement for denitrification processes（NH₄⁺・NO₂⁻・NO₃⁻）
・Pool water management (regulatory values), optimization of disinfectant use（S₂⁻・OIW・NH₄⁺・NO₂⁻・Cl ₂）

Components Measured

Gas Analyzer

Components Measured	Range	Accuracy	Detection Limit
Ammonia (NH3)	0.1～10ppm
Nitric oxide (NO)	0.1～1000ppm
Nitrogen dioxide (NO2)	0.1～1000ppm
Hydrogen sulfide (H2S)	0.1～100ppm
Tetrahydrothiophene (THT)	0.1～10ppm
Mercaptan (R-SH)	0.1～100ppm	±0.1～2%FS	±0.1～2%FS
Carbonyl sulfide (COS)	0.1～100ppm
Carbon disulfide (CS2)	0.1～10ppm
Sulfur dioxide (SO2)	0.1～1000ppm
Sulfur trioxide (SO3)	0.1～100ppm
Total sulfur (TS)	0.1～10ppm
Chlorine (Cl2)	0.1～10ppm
Chlorine oxide (ClO)	0.1～10ppm
Chlorine dioxide (ClO2)	0.1～10ppm
Nitrogen trichloride (NCl3)	0.1～100ppm
Oxygen (O2)	0.1～21%	±0.1～2%FS	±0.1～2%FS
Ozone (O3)	0.1～1000ppm
Carbon dioxide (CO2)	0.1～100%
Methane (CH4)	0.1～100%
Volatile organic compounds (VOC)	0.1～10ppm

Response time: approx. 10 sec. to 2 minutes

Liquid Analyzer

Components Measured	Range	Accuracy	Detection Limit
Ammonium ion (NH₄^＋)	0.1～1000mg/L
Nitrate ion (NO₃^－)	0.1～100mg/L
Nitrite ion (NO₂^－)	0.1～10mg/L
Total nitrogen (TN)	0.1～100mg/L
Phosphate ion (PO₄^3－)	0.1～10mg/L
Total phosphorus (TP)	0.1～10mg/L
COD	0.1～10000mg/L	±0.1～2%FS	±0.1～2%FS
Total organic carbon (TOC)	0.1～10000mg/L
Sulfide ion (S₂^－)	0.1～100mg/L
Sulfite ion (SO₃^2－)	0.1～100mg/L
Tank sulfurous acid (TS)	0.1～100mg/L
Total suspended solids (TSS)	0.1～10000mg/L
Turbidity (Turb)	0.1～100NTU
Color	0.1～1000Pt-Co
Chlorine (Cl2)	0.1～10mg/L
Chlorine dioxide (ClO2)	0.1～10mg/L
Total chlorine (TC)	0.1～10mg/L
Hydrocarbon (OIW)	0.1～100mg/L
Aromatic compounds (BTEX)	0.1～100mg/L	±0.1～2%FS	±0.1～2%FS
Phenol (C6H5OH)	0.1～100mg/L
Dissolved oxygen (DO)	0.1～100mg/L
Conductivity (EC)	0.1～1000mg/L
Ozone (O3)	0.1～10mg/L
pH (H^＋)	0～14mg/L