Yokogawa Zr22g Zirconia Oxygen Analyzer with 4-20MA Output Signal and 0.01 To 100 Vol% O2 Measurement Range for Dual Functionality Oxygen and Humidity Analysis

The Original Yokogawa Zr22g and Zr802g are single-channel zirconia analyzers designed to function as both oxygen analyzers and high-temperature humidity analyzers. Comprising a probe (ZR22G detector) and a converter (ZR802G), this system delivers precise measurements of oxygen concentration in combustion gases and water vapor in high-temperature processes.

The ZR802G converter features a digital display with a user-friendly touchscreen Human Machine Interface (HMI), showing key parameters such as cell temperature, cell electromotive force (emf), oxygen concentration, and humidity. Ideal for monitoring and controlling combustion processes in boilers, industrial furnaces, and high-temperature drying/humidification applications, it enhances productivity and efficiency across diverse industrial sectors.

• Dual Functionality: Serves as both a zirconia oxygen analyzer and a high-temperature humidity analyzer, eliminating the need for separate devices and reducing system complexity.
• Wide Measurement Ranges: Oxygen (O₂): 0.01-100 vol% in combustion exhaust and mixed gases. Humidity (H₂O): 0-100 vol% in mixed gases (air and water vapor), with a mixture ratio range of 0-1.000 kg/kg.
• Advanced Digital Communication: Supports HART7 (AO1, 250-550 Ω), Ethernet (Modbus TCP), and RS-485 (Modbus RTU), enabling seamless integration into industrial control systems for remote monitoring and data logging.
• User-Friendly Interface: ZR802G converter features a touchscreen HMI with easy-to-navigate menus, simplifying configuration, calibration, and real-time parameter monitoring.
• Reliable Performance: Excellent repeatability, linearity, low drift, and fast response (90% response within 5 seconds) for timely adjustments in dynamic processes.
• Versatile Applications: Suitable for combustion control in boilers and industrial furnaces, as well as humidity monitoring in textile coloring, concrete steam curing, and drying/humidification processes.

• Large/medium/small boilers (power generation, heavy oil, gas, coal)
• Industrial furnaces (oil/steel heating furnaces, coal kilns)

• Textile factory coloring processes
• Concrete product steam curing
• Drying/manufacturing of building materials, wood, and food
• Food product humidification processes