ZSS laser gas analysers provide innovative combustion optimization technology - perfect for incinerators, industrial boilers, power, steel and chemical plants.
Long-term stability and low maintenance.
ZSS Laser Gas Analysers for: waste incinerators, district heating, industrial boilers and chemical plants.
high precision
compact
Easy maintenance
Fast response
The analyser uses near infrared semiconductor laser and measures the change in absorption wavelength to determine the gas concentration.
Purge system reduces the risk of zero drift due to contamination
Compared to the ion electrode (sampling) method, the direct measurement provides remarkably faster response.
Simultaneous measurement of CO and O₂ enables precise control of air-fuel ratio while reducing the cost of installation and maintenance.
O₂ analyser for combustion control accepts instrument air purge.
Operation is based on a semiconductor laser that guarantees precise, reliable measurement. In-situ technology enables direct measurement of gaseous components, eliminating the need for sampling.
The heart of this analyser lies in its use of a laser as a light source, specifically a near-infrared semiconductor laser. This advanced technology enables in-situ measurement of gaseous components such as NH3, HCI, CO, O2, CO2, and CH4. The versatility of these measurements makes them an indispensable tool in a wide range of industrial applications.
The light source, a near-infrared semiconductor laser, guarantees high accuracy in the measurement of gas concentrations. It's important to note that the laser class used is CLASS 1, with exceptions for high-temperature versions and those with air purging of O2 analysers, which correspond to CLASS 3B, ensuring safe use.
The analyser is compatible with supply voltages ranging from 100 to 240 Vac at 50/60 Hz, making it easy to integrate into a variety of industrial environments. Power consumption is limited to 80 VA, underlining the energy efficiency of this device.
Maintaining measurement accuracy is essential, and the analyser suggests a calibration interval of every 6 months. This period may vary according to environmental conditions.
The backlit LCD screen offers a user-friendly interface, displaying crucial information such as measured component, concentration (instantaneous value, average, corrected instantaneous O2 value, corrected average O2 value), and alerts.
The analyser has been designed with ease of installation in mind. The weight of the receiver and transmitter is around 10 kg each, while the controller weighs around 8 kg. The various dimensions (receiver, transmitter and controller) allow flexibility in placement. What's more, the IP65 rating underlines the robustness of the device, protecting it from the elements.
The performance of this in-situ laser analyser is underlined by its fast response, high repeatability, and ability to maintain long-term accuracy. With features such as minimal zero drift and resistance to interference, it is an ideal choice for a wide range of industrial applications.
The response speed of the ZSS analyser is impressive, reaching a time of less than or equal to 4 seconds, and even faster, ≤ 2 seconds, for the high-speed version. This ability to deliver near-instantaneous results enables real-time monitoring, essential in dynamic industrial environments.
The analyser maintains exceptional repeatability, limited to ≤ ±1.0% of range, depending on components and measurement scales. This feature is essential to guarantee consistent results. In the case of combined CO + O2 measurement, accuracy is maintained at ±2% of full scale.
Linearity, another crucial quality, also remains outstanding, with a tolerance ≤ ±1.0% of full scale, depending on components and scales. For CO + O2 measurement, linearity remains excellent, with an accuracy of ±3% of full scale.
Fuji Electric's ZSS laser analyser offers exceptional stability with zero drift limited to ≤ ±2.0% of full scale over a period of 6 months, depending on the component and measurement scale. CO + O2 measurement maintains even more impressive accuracy, with drift limited to ±4% of full scale over the same period.
The effect of interference is minimized, with a maximum variation of ≤ ±2.0% of full scale. This ability to resist interference contributes to the reliability of results in complex environments.
The in-situ laser analyser also excels in terms of sensitivity, with a remarkable detection limit of no more than 1% of the minimum scale. This ability to detect very low concentrations is essential for accurate monitoring, even in conditions where gas levels are minimal.
The analyser offers analog outputs, with a signal range of 4-20 mAdc or 1-5 Vdc, with a choice of 2 or 4 points. These outputs enable transmission of the measured value as well as the corrected oxygen (O2) value. In addition, flexibility is maximized by the ability to switch between instantaneous and average values, offering greater adaptability to specific monitoring needs.
The analyser 's analog inputs are essential for accurate correction and compensation of measurements. Key parameters such as sample gas pressure, temperature, flow velocity, O2 content, water concentration and air purge pressure are integrated via 2-point 4-20 mApp signals. These inputs play a crucial role in measurement adjustment, ensuring maximum accuracy even under variable conditions.
Digital outputs enhance the control capabilities of theanalyser with a 6-point relay contact output. These outputs enable management of low light transmission, high and low limit alarms,analyser faults, calibration processes in progress or measurement hold, power failure, and installation faults. This versatility offers sophisticated control for proactive monitoring.
As an option, the analyser can be equipped with digital inputs via a 3-point photocoupler. These inputs enable advanced functions such as resetting the average value to zero, alternating between instantaneous and sliding average values, and holding the measurement remotely. This option adds an extra dimension to remote device management.
The analyser is designed to operate over a wide range of ambient temperatures, ensuring reliability in diverse industrial environments. The receiver and transmitter can operate in conditions ranging from -20 to +55°C, while the controller is suitable for temperatures from -5 to +45°C. This extended range means it can be used in applications where temperature variations are unavoidable.
Humidity management is crucial to maintaining measurement accuracy. The device is designed to operate in conditions where ambient humidity does not exceed 90% RH (relative humidity). This ensures that measurements remain stable and reliable even in potentially humid industrial environments.
The optical path length, an essential parameter for CO + O2 measurements, is adaptable to the specific needs of the application. With a range from 0.5 to 10 m,analyser offers optimum flexibility to suit a variety of configurations and installation requirements.
Integration of the ZSS analyser into existing systems is simplified thanks to standard flanges. Options include JIS 10K, 50A, 100A, DN50/PN10, or ANSI # 150 2B, offering compatibility with different standards and industrial plant configurations.
An efficient purge system is essential to maintain optical clarity and measurement accuracy. The specific table provided indicates the recommended purge gases, with a minimum pressure of 0.3 MPa and a flow rate of at least 20 L/min, ensuring a clean and clear environment foranalyser operations.
Gas conditions play a crucial role inanalyser performance. Compliance with datasheet, such as humidity limited to ≤50% vol (non-condensing), pressure with a tolerance of ± 10 kPa, and dust levels in line with standard or high-dust versions, guarantees optimum device performance.
*The measurement ranges described above are for the optical path of 1 m.
ref : ZSS
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