Infrared Gas Analysers

Fuji Electric infrared gas analysers are designed for process control and continuous measurement of stack emissions.


Extractive infrared multigas analysers NDIR

infrared gas extractive analysers

Their QAL1 certification guarantees high performance and regulatory and normative compliance.
Reliable and precise, their design quality guarantees 24-hour operation in difficult environments such as smoke from industrial chimneys.

Their robustness reduces maintenance costs and increases boiler and equipment availability.

Extractive measurement consists of taking a gas flow from the chimney or the gas pipe via a sampling probe and conveying it to the gas analyser.

The gas is sampled, treated in order to ensure optimal conditions for gas measurement.

Measurement of the concentration of 1 to 5 components

The Fuji Electric extractive multigas analyser range consists of non-dispersive 5-gas infrared analysers.

They allow simultaneous and continuous measurement by extraction of 1 to 5 gases from:

measuring the concentration of 1 to 5 components

Characteristics of the extractive infrared multigas analysers NDIR

Characteristics of the extractive infrared multigas analysers
diagram

Detection principle of analysers multigas infrared

detection principle for infrared multi-gas analyser diagram

The mass flow meter determines the amount of infrared light absorbed by the measuring cell.

Mass flow meter :

  1. It converts the absorption of infrared light into an electrical signal.
  2. Excellent resistance to interference thanks to the low impedance sensor.
  3. The absence of moving parts makes the analyzer particularly resistant to vibrations.

ZKJ - 5 components analyser - NDIR dual beam

5 components ndir double beam zkj analyser

Ideal for controlling polluting emissions

Uses a highly sensitive mass flow meter as a detector.

Simultaneous and continuous measurement of 5 gases:

CO2 - CO - CH4 - NOX - SO2 - O2 - NO - N2O

Specifications

zkj features

Specifications

Exceptional repeatability

Outstanding repeatability is assured with accuracy down to ± 0.5% of full scale (FS). For ranges below 50 ppm, repeatability remains outstanding with an accuracy of ± 1% FS.

Precise linearity

The analyser maintains precise linearity with a maximum tolerance of ± 1% PE, ensuring constant correlation between measured concentration and actual value.

Zero stability

Zero drift is minimized with a maximum variation of ± 1% FS per week. Even for ranges below 50-200 ppm, zero stability remains remarkable, with a drift of just ± 2% FS.

Scale stability

Scale drift is also kept under control, with a maximum variation of ± 2% PE per week, ensuring consistent measurements.

Fast Response Time

The analyser displays high reactivity with a fast response time of ≤ 60 seconds to reach 90% of the measured concentration.

Versatile exits and entrances

Multi-purpose contact outings

SPST-NO and SPDT contact outputs ensure efficient communication with features such as error detection, self-calibration, CO peak alarm, power failure, etc.

Facilitated Communication

Optional RS485 (Modbus®) communication provides network connectivity for easy integration with other systems.

User-friendly display

The backlit LCD display provides a clear view of the instantaneous value, the instantaneous corrected O2 value, the average corrected O2 value and the average O2 value.

Universal power supply

Compatible with supply voltages from 100 to 240 Vac, 50/60 Hz, the analyser offers optimum flexibility.

Controlled Energy Consumption

With a power consumption of 250 VA,analyser ensures energy-efficient operation.

Compact dimensions

Dimensions of 483 (W) x 177 (H) x 600 (D) mm and a weight of around 22 kg ensure easy integration in a variety of environments.

measuring principle zkj schematic

Measurement principle - NDIR double beam

  • NOX, SO2, CO, CO2, CH4, NO: Non-dispersive infrared absorption method.
  • O2: Paramagnetic or electrochemical method (measuring element incorporated in the analyzer) or zirconia method (external analyzer type ZFK7)


ZRE - 5 components analyser - NDIR single beam

5 components ndir single harness zre analyser

Compact and easy to use

  • Excellent stability over time
  • No influence of humidity on the measurement
  • Automatic calibration, communication and alarms

Simultaneous and continuous measurement of the concentration of 5 gases:

CO - CO2 - NO - NOX - SO2 - CH4 - O2

Specifications

zre features

Specifications

Exceptional repeatability

The analyser guarantees exceptional repeatability, with an accuracy of up to ± 0.5% of full scale (FS). This accuracy remains remarkable even for ranges below 50 ppm, where repeatability reaches ± 1% FS.

Precise linearity

The linearity of analyser is maintained with a maximum tolerance of ± 1% PE, guaranteeing a constant correlation between the measured concentration and the actual value.

Zero stability

Zero drift is limited to ± 2% PE per week, ensuring optimum stability. For ranges of 500 ppm or less, zero self-calibration is activated for enhanced accuracy.

Scale stability

Scale drift is controlled to ± 2% PE per week, guaranteeing consistent measurements.

Fast Response Time

The analyser excels with a fast response time of ≤ 60 seconds to reach 90% of the measured concentration.

Versatile exits and entrances

Multi-purpose contact outings

SPST-NO and SPDT contact outputs facilitate efficient communication, with functions such as error detection, self-calibration, CO peak alarm, power failure, etc.

Facilitated Communication

Optional RS485 (Modbus®) communication offers seamless network integration with other systems.

User-friendly display

The backlit LCD display provides a clear view of the instantaneous value, the corrected instantaneous O2 value, the corrected average O2 value, and the average O2.

Universal power supply

Compatible with supply voltages from 100 to 240 Vac, 50/60 Hz, the analyser offers optimum flexibility.

Controlled Energy Consumption

With a power consumption of 100 VA, the analyser ensures energy-saving operation.

Compact dimensions

With dimensions of 483 (W) x 133 (H) x 418 (D) mm and a weight of 8 kg,analyser is easy to integrate into a variety of environments.

measurement principle zre schema

Measuring principle

The amount of infrared radiation absorbed in the measuring cell is detected by a micro mass flow meter.

The low-impedance micro mass flowmeter has excellent immunity to interference, and the sensor, with no moving parts, is insensitive to vibration.


ZPA - 5 components analyser - NDIR single beam

5 components ndir single harness zpa analyser

ZPA is best suited to the measurement of exhaust gas from refuse incinerators, boilers, and various industrial furnaces.

Non-dispersion infrared-ray absorption method Single light source and single beams (single beam system)NO - SO2 - CO2 - CO - CH4

Electrochemical or paramagnetic method (measuring element incorporated intoanalyser) or zirconium method (analyser external type ZFK7): O2

Specifications

Measuring components and ranges

TypeZREZKJZPA
Modelzrezkjzpa
RangeMini rangeMax. rangeMini rangeMax. rangeMini rangeMax. range
NO0-200ppm0-5000ppm0-50 ppm0-5000 ppm0.200 ppm0 - 5000ppm
SO20-200ppm0-10 vol%0-50 ppm0-10 %0 - 200ppm0 - 10%
CO20-100ppm0-100 vol%0-20 ppm0-100 %0 - 100ppm0 - 100%
CO0-200ppm0-100 vol%0-50 ppm0-100 %0 - 200ppm0 - 100%
CH40-500ppm0-100 vol%0-200 ppm0-100 %0 - 500ppm0 - 100%
N2O__0-200 ppm0-2000 ppm__
O2
(electrochemical)
0-10 vol%0-25 vol%__0 - 10vol%0 - 25%
O2
(paramagnetic)
0-10 vol%0-25 vol%0-5 vol%0-25 vol%0 - 5vol%0 - 100%
O2
(analyser external)
0-5 vol%0-25 vol%0-5 vol%
0-25 vol%
0 - 5vol%0 - 25%

Fuji Electric gas analysers QAL1 lowest certified ranges

ZREZKJ (1)ZPA
mg/m3ppmmg/m3ppmmg/m3ppm
CO0 - 1250 - 1000 - 1250 - 1000 - 3750 - 300
CO2-0 - 20 %0 - 20 %
NO0 - 268 (2)0 - 2000 - 134 (2)0 - 1000 - 268 (2)0 - 200
NOx--0 - 205 (3)0 - 100--
SO20 - 5710 - 2000 - 2860 - 1000 - 5710 - 200
O2 (4)0 - 25 %0 - 25 %0 - 25 %

(1) ZKJ is under certification process at TÜV Rheinland.
(2) NO component certification range unit is mg/m3 NO.
In order to express the value as mg/m3 NO2, multiply by 1,53
(3) NOX component certification range unit is mg/m3; NO2.
(4) 0-10% is also certified as supplementary range for O2.
CO, NO and SO2 components are also certified with higher supplementary ranges, See relevant certificates.

Discover the infrared gas analysers


Continuous monitoring of your chimney emissions with Fuji Electric infrared multi-gas analysers !