Portable Infrared Syngas Analyzer

Portable Infrared Syngas Analyzer

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Portable Infrared Syngas Analyzer

Syngas series of gas analyzers by ESE it’s the ideal solution for biogas and syngas measurement and industrial combustion applications because of their accuracy, stability, reliability, broad measurement range, and the variety of available form factors.

Exclusive Infrared NDIR + Thermal conductivity TCD technologies

Calculated Real time Gas Heating Value (standard)


coal chemical process

steel making process as blast furnace,  converter, coking, direct iron ore smelting reduction

syngas production from Biomass and coal gas gasification processes

Heat treatment

Measurement technology 

Infrared dual beam NDIR for CH4,CO2,CO,CnHm

Thermal conductivity  TCD for H2

Galvanic fuel cell ECD for O2

Gas calorific value :calculated

Min/Max available range




Intermediary ranges available without price increase

Resolution: 0,01%

Accuracy: ≤ 2% FS

Repeatability: ≤ 1% FS

Response time: NDIR/ECD < 10 sec / TCD < 15 sec 

Gas conditions at inlet

Quality: no dust, tar, oil, water vapor and/or moisture

0.1Mpa≤ inlet pressure≤ 0.2Mpa 

Standard features

Robust casing with stainless steel /composite material

Temperature regulated enclosure for NDIR and TCD detector

Large LCD display (320x240)

Push button keyboard interface for configuration and calibration

Integrated flow meter with needle valve

External removable inline filter

Internal battery (standby >6h)

Data  acquisition  function  (logging  rate  adjustable  from  3  to  99 seconds, capacity 1500 sets of up to  8 data, identification of up to 10 different sites and 100 measuring points)

Internal gas sampling pump (nominal flow 1l/min)

RS232 COM port

Memory & real time data download software included

Dimensions: L 520 × D320× H430 mm / ± 10 kg

  Weight:  7 kg


CO, CO2, CH4, CnHm, O2, H2  ,BTU index (gas calorific value)


High Heating Value or Low Heating Value in MJ/m3 or kcal/m3


CO, CO2, CH4, CnHm        : proprietary dual beam NDIR detectors

O2                                  : industrial electrochemical cell

H2                                    : proprietary thermal conductivity detector


CO: 0-100%, CO2: 0-50%, CH4 : 0-10%, CnHm : 0-10%, O2: 0-25%, H2: 0-50%

Other ranges customizable on request without price increase

No effect of CO2 and CH4 on H2 detector

H2 reading is compensated for the interference effects of the other gases measured




≤ ± 2% FS


≤  2%

Gas conditions at analyzer inlet

Flow:0.9L-1.1/min, internal  gas sampling  pump, external flow meter with needle valve

Pressure:0.1Mpa≤ inlet pressure≤ 0.2Mpa

Quality: No dust, moisture, tar (external safety filter and optional gas washing unit)

Operating conditions

Tamb : -5°C -45°C / Pamb : 86 to 108 kPa / RH : 0-95% non condensing

Response time (T90)

≤  15 sec

Communication interface

RS232 ( real time and memory data download  software included)

Power supply

External 220 VAC-50Hz

Internal with battery and charger; Autonomy of  > 4h with pump in operation


Robust casing in aluminium with cover and shoulder trap

Dimensions and weight

Gas analyser : L 520 × D320× H430 mm / ± 10 kg 

Standard accessories

nylon carrying bag for analyzer and accessories

gas in/out tubing

battery charger + 220 VAC power cable

RS232/DB9 cable

Technical manual, inspection and calibration sheet


Portable gas pre-treatment unit for the removal of dust, tar and moisture from the gas