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Monitoring solutions

Continuous Emission Monitoring Systems (CEMS)

Complete, compliance-ready CEMS for industrial stacks – gas analyzers, dust monitors, flow measurement, sampling and data acquisition, designed, manufactured, installed and supported by GPIPL.

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Overview

A Continuous Emission Monitoring System measures what leaves an industrial stack, around the clock. It gives plant teams real-time emission data for process control and gives regulators the continuous, verifiable records they require from CPCB / SPCB-notified industries.

Configurations to suit every stack

GPIPL builds CEMS in the configuration your process needs: cold-dry extractive systems that remove moisture before analysis, hot-wet systems that keep the sample above its dew point so water-soluble gases are not lost, in-situ TDLAS / DOAS analyzers mounted directly on the stack, and explosion-proof systems for hazardous areas.

Parameters we monitor

Typical systems measure SO₂, NOx (NO, NO₂), CO, CO₂, O₂ and dust, together with flue gas temperature, pressure, velocity and flow. Where required, systems are extended to HCl, HF, NH₃, VOCs, mercury, heavy metals, odour gases and greenhouse gases.

One partner from design to data

Analyzers, sampling probes, heated lines, conditioning units, flow monitors and the data acquisition system are engineered to work together. GPIPL handles installation, commissioning, calibration against traceable standards and long-term AMC, so your data stays accurate and online.

What is included

  • System design and analyzer selection for each stack
  • Cold-dry, hot-wet, in-situ and explosion-proof CEMS
  • Gas analyzers for SO₂, NOx, CO, CO₂, O₂ and more
  • Dust / particulate monitoring and flow (temperature, pressure, velocity)
  • Heated sampling probes, lines and sample conditioning
  • Data acquisition and real-time data transmission
  • Installation, commissioning and calibration
  • AMC, spares and technical support

Related products

20 products

  • Continuous Emission Monitoring Systems (CEMS)

    CEMS – Gas Analysis & Monitoring System

    Model Z-215i Ein

    Z-215i Ein TDLAS CEMS for HCl and HF in flue gas, using multi-reflection optics and in-situ heated extraction for low-concentration measurement.

  • Hot-Wet CEMS

    CEMS (Hot-wet) – Z-55i Ein

    Model Z-55i Ein

    Z-55i Ein hot-wet extractive CEMS measuring SO₂, NOx, CO, CO₂ and O₂ in real time, keeping the sample hot to prevent condensation and protect accuracy.

  • Sampling Probes & CEMS Components

    CEMS Gas Sampling System Service

    Heated stainless-steel CEMS gas sampling probe and line that carries flue gas from the stack to the conditioning and analyzer system, configured to site requirements.

  • Cold-Dry Extractive CEMS

    Flue Gas Analyzer (cold-dry)- MODEL-Z-14i Ein

    Model Z-14i Ein

    Z-14i Ein cold-dry UV-DOAS flue gas analyzer for continuous measurement of NO, NO₂, NOx, SO₂ and other flue gases in CEMS applications.

  • Specialty CEMS (GHG, Mercury, HCl, Heavy Metals, Odour)

    Mercury CEMS (Dilution) Monitoring System

    Dilution-type mercury CEMS using cold atomic fluorescence (CAFS) to measure elemental, ionic and total mercury in flue gas, with supply, installation and commissioning.

  • Specialty CEMS (GHG, Mercury, HCl, Heavy Metals, Odour)

    Mercury Continuous Emission Monitoring System (CEMS)

    Model Z-59i Ein

    Z-59i Ein mercury CEMS for continuous, real-time measurement of mercury (Hg) in industrial stack emissions, with automatic calibration and high sensitivity.

  • Sampling Probes & CEMS Components

    NH3 Converter

    Model Z-106P Ein

    Z-106P Ein internally heated NH₃-to-NOx converter in a 19" rack enclosure, enabling accurate ammonia slip measurement with CEMS and gas analyzers.

8 more related products in the catalogue. Browse all products

Industries

  • Power Generation

    Environmental monitoring requirements in power generation applications can include emission measurement, air quality monitoring and related monitoring systems.

  • Cement

    Monitoring for cement kilns and grinding units – stack gas emissions, dust, mercury and process gas, built for hot, dusty and moist conditions.

  • Steel

    Emission and process monitoring for steel plants and metal processing – stack gases, dust, greenhouse gases and heavy metals.

  • Petrochemical

    Monitoring for chemical, petrochemical, refinery and oil & gas sites – stack emissions, VOCs, odour gases and instruments for hazardous areas.

  • Waste Incineration

    Monitoring for municipal, hazardous and medical waste incinerators – HCl, HF, NH₃, mercury, heavy metals and multi-gas FTIR analysis.

  • Pharmaceutical

    Monitoring for pharmaceutical plants – boiler emissions, VOCs and odour, utilities and clean-room parameters.

  • Fertilizer

    Ammonia and emission monitoring for fertilizer plants – NH₃ analyzers, stack CEMS and ambient air monitoring.

Frequently asked questions

What is a CEMS?

A Continuous Emission Monitoring System continuously measures pollutants and flue gas parameters at a stack and records the data for process control and regulatory reporting.

Cold-dry or hot-wet – which do I need?

Cold-dry systems remove moisture before analysis and suit most combustion stacks. Hot-wet systems keep the sample hot so water-soluble gases such as HCl, NH₃ or SO₂ in wet flue gas are not lost. Our engineers recommend the right type after reviewing your stack conditions.

Can the data be sent to the pollution control board?

Yes. GPIPL systems include data acquisition with real-time data transmission and support for CPCB / SPCB connectivity.

Do you provide calibration and AMC after installation?

Yes. GPIPL provides calibration, preventive maintenance and annual maintenance contracts with fast after-sales support.

Other monitoring solutions

  • Ambient Air Quality Monitoring

    Continuous ambient air quality monitoring stations and analyzers for SO₂, NOx, O₃, NH₃, particulates and VOCs – from single analyzers to complete CAAQMS and micro-monitoring networks.

  • Continuous Emission Monitoring System (CEMS)

    Continuous Emission Monitoring Systems (CEMS) for continuous measurement and monitoring of industrial emissions, supporting reliable environmental compliance and process monitoring.

  • Dust & Opacity Monitoring

    Continuous dust and particulate monitoring for stacks and ducts – in-situ laser back-scatter, extractive forward-scatter for wet flue gas, and total particulate flow measurement.

  • Environmental Data Acquisition (DAS)

    Data acquisition systems that collect, store and transmit data from analyzers, dust monitors and flow monitors – the backbone of every CEMS and CAAQMS.

  • Industrial Gas Analysis

    Online, portable and FTIR gas analyzers for flue gas, process gas and emission monitoring – TDLAS, DOAS, UV-DOAS, FTIR, chemiluminescence and UV fluorescence technologies.

  • Mercury & Heavy Metal Monitoring

    Continuous monitoring of mercury and heavy metals in flue gas – dilution-type mercury CEMS using cold atomic fluorescence, and online heavy metal monitoring systems.

  • Process & Field Instrumentation

    Temperature, humidity, pressure, flow, level and portable test instruments for process monitoring, utilities, clean rooms and maintenance teams.

  • VOC Monitoring

    Online monitoring of volatile organic compounds and odour gases – GC-based VOC analyzers, VOC CEMS and UV-DOAS odour analyzers for stacks, fence lines and ambient air.

  • Water Quality Monitoring

    Online water quality monitoring for industrial water and effluent – starting with online pH analyzers and transmitters, with installation, calibration and maintenance.

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