Yokogawa ZR22G Separate type Zirconia Oxygen Analyzer O2 Analyzer
ZR22G Yokogawa O2 Analyzer is EXAxt series ZR Separate type Zirconia Oxygen/Humidity Analyzer which usually work with connected ZR402G or AV550G converter. It is used or combustion monitoring and control in a wide variety of applications and help industries to make considerable achievements in energy saving such as iron and steel, electric power, oil and petrochemical, ceramics, pulp and paper, food, and textiles, also to various combustion facilities, such as incinerators and small- and medium sized boilers. Combustion monitoring and control using the analyzer also contribute to a lowering of CO2, SOx, and NOx emissions by allowing for more complete combustion, thus preventing global warming and air pollution.
Yokogawa ZR22G O2 Analyzer owns below typical features:
1. The built-in heater assembly of the probe can be replaced on site, reducing maintenance costs
2. The probe uses a long-life, high-reliability Zirconia sensor
3. The probe uses three-reference gas supply methods for compensation in applications
4. Remote maintenance using digital communications(HART) reduces maintenance costs
5. Wide range of wetted part material optional, SUS 316 (JIS), Hastelloy, Inconel
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ZR22G SPECIFICATION
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Measurement object
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Oxygen concentration in combustion exhaust gas and mixed gas
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Measurement system
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Zirconia system
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Measurement range
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0.01 to 100 vol%O2
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Output signal
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4 to 20 mA DC, two points (maximum load resistance 550 Ω)
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Setting range
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Any setting in the range of 0 – 5 vol%O2 to 0 – 100 vol%O2 (in 1 vol%O2), or partial range
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Digital communication (HART)
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250 to 550 Ω, depending on number of field devices connected to the loop (multi-drop mode)
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Sample gas pressure
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-5 to +250 kPa
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Sample gas temperature
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0 to 700℃ (Probe only)
700 to 1400℃ (with 0.15m probe and High Temperature Probe Adapter) |
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Probe length
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0.15, 0.4, 0.7, 1.0, 1.5, 2.0, 2.5, 3.0, 3.6,4.2, 4.8, 5.4 m
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Contact output
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Four points (one is fail-safe, normally open)
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Contact input
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Two points
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Calibration
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Method ; zero/span calibration
Calibration mode ; automatic, semi-automatic and manual (All are operated interactively with an LCD touchscreen) |
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Construction of detector
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Heater and thermocouple replaceable construction.
Non-explosion-proof. Equivalent to NEMA4X/IP66 |
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Converter Construction
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Outdoor installation. Equivalent to NEMA4X/IP66
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Ambient temperature
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Probe: -20 to 150℃, Converter: -20 to 55℃
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Power supply
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85 to 264 V AC; 45 to 66 Hz
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