A Non-Dispersive Infrared (NDIR) Analyzer is an instrument used to measure gas concentrations based on infrared absorption.
It is commonly used to detect gases like carbon dioxide (CO₂), carbon monoxide (CO), and methane (CH₄).
The analyzer works on the principle that different gases absorb infrared light at specific wavelengths.
An infrared light source emits radiation through a gas sample chamber.
The target gas absorbs part of the infrared energy, reducing the detected signal.
A detector measures the remaining infrared radiation after it passes through the sample.
The decrease in signal intensity is proportional to the gas concentration.
Optical filters are used to select specific wavelengths for accurate measurement.
NDIR analyzers are widely used in environmental monitoring, industrial processes, and emission control.
They are known for their high reliability, low maintenance, and long-term stability.
TEMPERATURE: Non-flammable;: 0°C to 55°C (32°F to 138°F)
FLOW RATE: 500 to 1400 ml/min.
PRESSURE: Maximum 690 hPa-gauge (10 psig), higher pressure in
pressurized cell applications
PARTICULATES: filtered to <2 microns
DEWPOINT: <40°C (104°F), no entrained liquid
MATERIALS IN CONTACT
WITH SAMPLE:
Gold plated Pyrex, sapphire, quartz, Irtran, FEP Teflon, Viton-
A, 316 stainless steel
CASE CLASSIFICATION: General purpose for installation in weather-protected areas
DIMENSIONS: See Outline and Mounting Dimensions, Figure 2-3
WEIGHT: Standard: 11 kg (24.2 lbs.); extended: 12.5 kg (27.5 lbs.)
MOUNTING: Inside a Platform or custom-installed in a panel
MAXIMUM LENGTH OF
LON CABLE: 1600 m (1 mile) between Analyzer Module and Platform
