In situ oxygen measurement
Fields of application
This analysis system is designed for demanding applications in potentially explosive atmospheres, such as refinery furnaces, petrochemical furnaces and large industrial boilers.
Features
From
1700,00 € Request a quote
From
543,00 € Request a quoteThe ATEX ZKMX zirconium oxygen analyser and ATEX ZFKX measurement probe make up the in situ zirconium oxygen analyser for controlling combustion in potentially explosive atmospheres. Measuring the oxygen concentration in effluent enables the air/fuel ratio characterizing combustion to be monitored. This is essential for controlling the efficiency and ensuring the safety of the process.
The ZKMX controller is ATEX Zone 1 IIC T6 certified. It can be installed remotely from the sensor, on a stand or on a panel. The controller controls heating and thermoregulation of the probe at 800°C. It measures the sensor signal and transforms it into O2 concentration according to the Nernst equation. The oxygen concentration value is displayed on the screen and can be transmitted to the control station via a 4-20mA signal. In addition, certain system maintenance operations, such as calibration, blowing or sensor regeneration, can be controlled directly from the controller.
The electronics can be operated from the control station using the following functions:
| Application | O2 measurement in non-combustible gas mixtures Industrial heat production in refineries Petrochemical reactor furnaces Large combustion plants |
| Measuring principle | In situ zirconia sensor |
| Scale | 0...2...50% vol O2 (user-configurable) |
| Repeatability | ≤ ± 0.5% PE |
| Linearity | ≤ ± 2 % PE |
| Response time (for 90%) | 4 s . ... 7 s |
| Analog output | 4-20 mAcc or 0-1 Vcc |
| Contact outputs | 6 points, SPST-NO contact: High/low limit alarm, maintenance in progress, purging in progress, calibration in progress, fault analyser |
| Contact inputs | 3 dry contacts: select from 7 options |
| Display | Backlit LCD |
| Connectivity | RS-485 (Modbus®) |
| Optional functions | Combustion efficiency display, cleaning, automatic calibration, selection valve, flow meter |
| Controller installation | Panel mount |
| Cable length between controller and detector | ≤ 50 m |
| Power supply | 100-120 VAC or 200-240 VAC, 50/60 Hz |
Technologies
The Atex in-situ oxygen analyser is designed for combustion control in hazardous areas (refining and petrochemical furnaces, industrial boilers).
ATEX zirconia oxygen controller - ZKMX
Reference : ZKMX
