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YOKOGAWA ZR22G, ZR402G Zirconia High Temperature Humidity Analyzer |
YOKOGAWA ZR22G, ZR402G Zirconia High Temperature Humidity Analyzer
The ZR22G/ZR402G Separate Type Zirconia High Temperature Humidity Analyzer does not require any sampling system. The analyzer continuously measures the humidity of high temperature air and is typically used in steam and electric dryers. It is ideal for monitoring and controlling the humidity in dryers and humidifiers of various industries, helping improve their productivities.
The ZR402G is equipped with an LCD touch panel which has various setting displays, a calibration display, humidity trend display, with easier operation and improvement of display functions. The converter is equipped with various standard functions such as measurement and calculation as well as maintenance functions including a self-test. An automatic calibration unit is available for fully automated calibration.
Features
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The separate type converter ZR402G incorporates a LCD touch-screen for ease of operation. |
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The built-in heater assembly of the probe can be replaced on site, reducing maintenance costs. |
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The probe uses a long-life, high-reliability Zirconia sensor. |
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Remote maintenance using digital communications (HART) reduces maintenance costs. |
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Note: HART is a registered trademark of HART Communication Foundation. |
Specifications
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Measurement object |
Water vapor (in vol%) in mixed gases (air and water vapor) |
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Measurement system |
Zirconia system |
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Output signal |
4 to 20 mA DC, two points (maximum load resistance 550Ω) |
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Measurement range |
0 to 100 vol% H2O or 0 to 1.000kg/kg |
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Digital communication (HART) |
250 to 550Ω, depending on number of field devices connected to the loop (multi-drop mode) |
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Sample gas pressure |
- 5 to + 20 kPa |
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Sample gas temperature |
0 to 700℃ (Probe only) |
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Probe length |
0.4, 0.7, 1.0, 1.5, 2.0, 2.5, 3.0 m |
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Contact output |
Four points (one is fail-safe, normally open) |
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Contact input |
Two points |
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Analog input |
One point |
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Calibration |
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 |
Non-explosion proof. Equivalent to NEMA4X/IP66 |
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Construction of converter |
Outdoor installation, NEMA4X/IP66 or equivalent |
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Ambient temperature |
Probe: -10℃ to 150℃ ; converter: -20℃ to 55℃ |
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Power supply |
85 to 264 V AC; 45 to 66 Hz |
Performance
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Repeatability |
±1 vol%H2O (sample gas pressure within ±0.49 kPa |
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Linearity |
±2 vol%H2O (sample gas pressure 2 kPa or less) |
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Drift |
±3 vol%H2O/month (both zero and span) |
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Response time |
90% response within 5 sec |
Applications
- Coloring processes in the textile industry
- Steam curing processes for concrete products
- in the cigarette, food, paper or pulp industries
- Drying processes in various manufacturing of building materials, lumber, plasterboard, food or the like
- Humidifying processes in various manufacturing of food or the like
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