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A multiple point oxygen measurement system may be required for situations when gas stratification in the flue duct affects combustion control.
The AV550G Averaging Converter can accept inputs from up to eight zirconia oxygen detectors. It sends output signals for the individual as well as averages of multiple oxygen concentrations.
A robust multipoint converter reduces installation and maintenance costs.
A large 5.7-inch color LCD display shows various measurement, setup, calibration, and trend screens.Its intuitive touch screen, is easy to read and makes set up and maintenance simple. Other standard features include new self-diagnostics and a hot swap function that allows a desired probe to be disconnected/reconnected for inspection or maintenance just by turning off the power of the relevant channel.
The AV550G Averaging Converter is ideal for combustion control in large utility boilers or various industrial furnaces.
Features
* Full color touch screen
* Special trend graph functions with customer graph configuration
* Multiple display modes shows average data, single detector or all detector
gas concentrations
* Handles input of up to 8 oxygen detectors
* “Hot swap” of channel cards so the analyzer remains on line while
maintenance is performed
* Eight 4-20mA outputs for individual detectors.
* Three 4-20mA outputs for average oxygen concentration outputs.
* Failed, in calibration, or alarming, detectors are automatically excluded from
average calculations.
* Data of Hi and Low alarm can be excluded
* Allows contact input, calibration activation, range change and detector
performance validation.
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Detectors |
ZR22G, ZO21D, ZO21DW |
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Number of Detectors |
1 to 8 Expandable up to 8 Bases, these for 4CH and 8CH are available |
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Display |
5.7 inches color LCD display of size 320 by 240 dot with touch screen |
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Output Signal |
4 to 20 mA DC (maximum load resistance 550Ω) Average-value Output; 3 points Independent Output; Output to each channel Common isolation / Individual isolation selectable |
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Common Contact Output |
Contact capacity 30V DC 3A, 250V AC 3A (resistive load) 5 points,Four of the output points can be selected to either normally energized or normally deenergized status.Contact output 5 is normally energized. |
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Contact Output for Individual Channel Fail |
Output to each channel Normally energized. |
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Solenoid Valve Contact Output |
Contact capacity 30V　DC 1A, 250V AC 1A, voltage free contacts |
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Contact Input |
2 points, voltage free contacts |
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Ambient Temperature |
-5 to +50℃ |
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Humidity Range |
10 to 85%RH (non-condensing) |
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Power Supply Voltage |
100 / 115 V AC
220/240 V AC (available in the near future) |
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Construction |
Indoor installation |
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Installation |
Wall mounting |
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Paint Color |
Silver Gray (Munsell 3.2PB7.4/1.2) |
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Weight |
Approx. 13kg |
Courtesy of Yokogawa
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