Zirconia Oxygen-Humidity Analyzer ZR22G ZR802G
Zirconia Oxygen-Humidity Analyzer ZR22G ZR802G
Contribute to OPEX reduction
Contributes to opex reduction, and continuously measures oxygen concentration and humidity under high temperature without the need for a sampling device.
This analyzer consists basically of a probe and a converter that are used as both a Zirconia Oxygen Analyzer and High Temperature Humidity Analyzer.
The ZR802G converter uses a digital display, displays the cell temperature and cell emf in addition to the oxygen concentration and includes a Human Machine Interface (HMI), that offers easy touch screen operation. This analyzer is most suitable for monitoring the oxygen concentration of combustion gases in large or small boilers, various industrial furnace and combustion devices, or for the control of low-oxygen combustion.
Separate type Zirconia High Temperature Humidity Analyzers are used to measure the humidity of hot gases continuously in driers which use an electrical heater or hot gas as the heat source. They can also be used in a variety of manufacturing applications in humidifiers, as well as in driers, for humidity measurement and control. They can help improve productivity in these application fields.
Features & Benefits
Probe
- The built-in heater assembly of the probe can be replaced on site, reducing maintenance costs.
- The probe uses a long-life, high-reliability Zirconia sensor.
- The probe uses three-reference gas supply methods (natural air convection, instrument air, and pressure compensated) in its applications.
- The converter incorporates the LCD touchscreen for ease of operation.
Converter
- This converter can be used as an oxygen analyzer as well as a high temperature humidity analyzer.
- The deterioration status of the sensor can be confirmed by the sensor resistance check function (self-diagnosis function) in the converter. New
- The converter records history of alarm on/off, measured value history for up to 40 days, and others. New
- The integrated type integrates both probe and converter, to reduce wiring, piping, and installation costs. This type of unit uses an optical switch for ease of operation at the site.
- Remote maintenance using digital communications (HART, Modbus TCP and RTU) reduces maintenance costs.
Application
Zirconia Oxygen Analyzer
- Large or small/medium-sized boilers (for electric power, heavy oil, gas and coal, etc.)
- Various industrial furnaces (oil / steel heating furnaces, coal kilns, etc.)
Zirconia Humidity at high temperatures Analyzer
- Coloring process of textile factory
- Steam curing process for concrete products
- Various manufacturing and drying processes for building materials, wood, food, etc.
- Various manufacturing and humidification processes for food products, etc.
General Purpose Specifications
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Measurement Object
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Oxygen analyzer: Oxygen concentration in combustion exhaust gas and mixed gas
Humidity Analyzer: Water vapor (in vol%) in mixed gases (air and water vapor)
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Measurement System
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Zirconia System (Detector ZR22G)
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Measurement Range
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O2: 0.01–100 vol%
H2O: 0–100 vol%
Mixture ratio: 0–1.000 kg/kg
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Digital Communication
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HART7 (AO1, 250 to 550 Ω)
Ethernet (Modbus TCP)
RS-485 (Modbus RTU)
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Characteristics
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Repeatability
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O2: ± 0.5% F.S. (0 to 5 vol% O2 or more and less than 0 to 25 vol% O2 range)
O2: ± 1% F.S. (0 to 25 vol% O2 or more and up to 0 to 100 vol% O2 range)
H2O: ± 1 vol%H2O (Sample gas pressure 2 kPa or less)
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Linearity
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O2: ± 1% F.S. (0 to 5 vol% O2 or more and less than 0 to 25 vol% O2 range)
O2: ± 3% F.S. (0 to 25 vol% O2 or more and less than 0 to 50 vol% O2 range)
O2: ± 5% F.S. (0 to 50 vol% O2 or more and up to 0 to 100 vol% O2 range)
H2O: ± 2 vol%H2O (sample gas pressure: within ± 0.49 kPa)
H2O: ± 3 vol%H2O (sample gas pressure: 2 kPa or less)
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Drift
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O2: Both zero and span ± 2% F.S. /month
H2O: Both zero and span ± 3 vol%H2O /month
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Response Time
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Response of 90% within 5 seconds.
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