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NTBE-CEMS-NDIR · Extractive NDIR CEMS for SO₂ & NOₓ
Online SOₓ & NOₓ Gas Monitoring System (NDIR)
Continuous Emission Monitoring System using Non-Dispersive Infrared (NDIR) technology for reliable measurement of flue-gas emissions. Suited to power plants, boilers, cement, steel, chemical, paper, textile and other process industries requiring continuous emission monitoring. Integrated with a complete extractive sampling system, automatic calibration and communication interfaces for seamless data transmission to regulatory servers. CPCB guidelines recognise extractive NDIR (often paired with NDUV) as an accepted technology for gaseous emission monitoring.
Key Features
- ✓Continuous online monitoring of SO₂ and NOₓ
- ✓High-accuracy NDIR-based measurement
- ✓Real-time gas-concentration display
- ✓Automatic zero and span calibration
- ✓Extractive sampling — heated probe, filter, cooler, moisture removal
- ✓Digital comms: Modbus RS-485 / Ethernet
- ✓Analog 4–20 mA for PLC / DCS / SCADA
- ✓Data logging with historical trend analysis
- ✓Remote diagnostics and alarms
- ✓Weatherproof cabinet, 24×7 continuous operation
- ✓TÜV and CE marked
Applications
Thermal power plantsIndustrial boilersCement plantsSteel & metal industriesChemical & petrochemical plantsRefineriesWaste incineratorsFertilizer plantsPaper & pulp
Need a quote or technical sheet?
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Technical Specifications
| Parameters | SOₓ, NOₓ |
| Measuring Range | 0 – 1000 ppm |
| Resolution | 0.1 ppm |
| Technology | NDIR |
| Response Time | ≤ 30 seconds |
| Preheat Time | ≤ 15 seconds |
| Working Voltage | DC 5 ± 0.1 V |
| Working Current | < 5 mA |
| Op. Temperature | –20 to 50 °C |
| Op. Humidity | 15 – 90% RH (non-condensing) |