Wobo Industrial Equipment Co., Ltd.
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Product Overview
The Humidity & Oxygen Analyzer utilizes ceramic zirconia sensor technology and is specifically designed for accurate measurement of oxygen concentration and humidity in oxygen-water vapor mixtures. By analyzing the functional relationship between the sensor output and the mixed gas composition, the instrument provides precise measurements of both humidity and oxygen levels and outputs corresponding signals for environmental monitoring. With high stability, long service life, and resistance to high temperature and humidity, it operates reliably in harsh industrial conditions. This analyzer is widely used in flue gas continuous monitoring systems (CEMS) for desulfurization and denitrification processes, as well as in industries such as wood, building materials, paper, chemical, pharmaceutical, fiber, textile, tobacco, vegetables, and food processing for humidity and oxygen control.
Working Principle
The analyzer is based on ceramic zirconia sensor technology. Oxygen molecules undergo an electrochemical reaction at high temperature within the sensor, generating a measurable signal. A humidity-sensitive element measures water vapor content in the gas mixture. By analyzing the relationship between the sensor output and the mixed gas composition, the device calculates precise oxygen concentration and humidity values. A heated probe prevents condensation inside the sensor, ensuring accurate readings under high-humidity conditions.
Key Features
- Dual Measurement Capability: Simultaneously measures sample gas humidity and oxygen concentration, providing comprehensive monitoring data.
- Heated Probe Design: Prevents water condensation in the probe, maintaining measurement accuracy.
- Durable and Corrosion-Resistant: Suitable for high-temperature, high-humidity, and particulate-laden environments, extending sensor life.
- Sensor Protection: Equipped with filters to prevent dust and particulate blockage, ensuring long-term stable operation.
- Versatile Output Options: Supports 4–20 mA analog output and RS232/RS485 digital communication for seamless integration with other systems.
- Real-Time Monitoring: Includes operation indicators, fault detection, and alarm output for convenient use.
- Wide Applicability: Stable performance across diverse industrial and environmental conditions.
Applications
- Environmental Protection: Used in flue gas CEMS systems for online measurement of humidity and oxygen in desulfurization and denitrification processes.
- Industrial Processes: Monitoring oxygen and humidity in wood, building materials, paper, chemical, pharmaceutical, fiber, and textile production.
- Food Processing: Ensures precise humidity control in food production to maintain product quality.
- Tobacco and Other Industries: Humidity monitoring in tobacco, vegetable, and other processing environments to maintain air quality.
- Laboratory & Research: Provides accurate online measurement of humidity and oxygen for laboratory experiments and scientific studies.
| Parameter | Description |
| Measurement Principle | Ceramic Zirconia Principle |
| Measurement Range | H2O：(0~40)%VOL O2：(0.1~25)%VOL |
| Linear Error | H2O: ±2%F.S.; O2: ±2%F.S. |
| Repeatability | ±2% |
| Response Time | T90≤30S |
| Housing | Non-explosion proof structure |
| Operating Mode | Online |
| Sampling Method | Extractive/Continuous flow |
| Operating Power | 24V DC, 50W |
| Calibration Period | Recommended calibration every year |
| Ambient Temperature | (-10~+50)℃ |
| Ambient Humidity | ＜90%RH |
| Sample Gas Temperature | ＜180℃ |
| Sample Gas Pressure | Atmospheric pressure ±10% (Outlet should be atmospheric pressure) |
| Sample Gas Flow Rate | (1~5)L/min |
| Probe Interface | G 1/8 internal thread |
| Installation Mode | Instrument: Rail-mounted; Probe: Wall-mounted |
| Communication | RS485 (standard) / RS232 (optional) |
| Output Mode | 2 x 4~20mA output; 3 x relay output |
