Infrared gas analyser - ZKJ

Simultaneous, continuous measurement of 5 gases

Fields of application

ZKJ is particularly suitable for industrial furnaces, boilers and all types of combustion installations.

Benefits

Dual-beam reference cell offers excellent performance
Low ranges from 0-20 ppm
Excellent zero-point stability: ± 1% PE per week
Integrated interference detectors optimally reduce cross-interference
Clear, intuitive interface with advanced diagnostic and calibration functions

Reference : ZKJ
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Features
Documentation

Features

The ZKJ gasanalyser r enables simultaneous and continuous measurement of up to 5 gases—including NO, SO₂, CO₂, CO, CH₄, and N₂O—using the non-dispersive infrared method, while O₂ is measured
using the paramagnetic or zirconia method. It provides extremely reliable measurements thanks to two mass flow meters that are unaffected by interfering gases. It offers high accuracy, numerous features, and ease of use. The ZKJ is particularly well-suited for industrial furnaces, boilers, and all types of combustion systems.

Measurable components		NO, CO2, CO, CH4, SO2 and N2O + O2
Measuring principle	Non-dispersive infrared absorption method. Single source, double beam.	NO, CO2, CO, CH4, SO2, N2O
	Paramagnetic method (measuring element embedded in theanalyser) or zirconia method (externalanalyser )	O2
Repeatability		±0.5% PE ±1% FS (for scales below 0-50 ppm)
Linearity		±1% PE
Zero drift		±1% FS/week ±2% FS/week (for scales between 0-50 ppm and 0-200 ppm) ±2% PE/day (for scales below 0-50 ppm)
Scale drift		±2% PE/week ±2% FS/day (for scales below 0-50 ppm)
Response time (for 90% of full scale)		- Electrical response time: 15 sec - Response time when gas flow is 0.5 L/min, is less than 60 sec (including sample gas replacement time). - Gas replacement time depends on number of sample gases and scale.
Power supply	Voltage	100 V to 240 V AC
	Scale range	85 V to 264 V AC
	Frequency	50Hz/60Hz
Operating temperature		-5 °C to 45 °C
Operating humidity		Max. 90% RH (non-condensing)
Housing		Steel for indoor mounting
Color		Front panel: light gray (Munsell N7.2 or equivalent) Case: steel gray
Display		4-digit digital display (LED backlit LCD)
Dimensions		analyser : 483 × 177 × 599 mm Remote terminal module: 164 × 55 × 316 mm
Weight		Approximately 22 kg (analyser , unloaded)