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YOKOGAWA SG750 Stack Gas Analyzer |
YOKOGAWA SG750 Stack Gas Analyzer
The SG750 Stack Gas Analyzer consists of an infrared gas analyzer, a zirconia oxygen analyzer, and a sampling unit.
It can simultaneously measure up to 5 components: NOx, SO2, CO2, CO, and O2.
The use of interference compensation in the analyzing section virtually eliminates the effects of interference from other components. The SG750 features many functions including autocalibration, conversion to O2 values, averaging, and high/low alarms. It is used for measuring and monitoring emissions from various types of boilers and waste incinerators.
Features
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Simultaneously and continuously measures concentrations of up to 5 gas components NOX, SO2, CO, CO2 and O2. |
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The use of interference compensation in the analyzing section virtually eliminates the effect of concentration of any gas component on the concentration readings of others. |
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Adopts a double beam infrared analyzer, a Zirconia oxygen analyzer meter or paramagnetic oxygen meter with high sensitivity and excellent long-term stability. |
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The maintenance type on the front saves space. |
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High sensitivity and wide dynamic range, allowing for switched ranging of up to 1:25 and range can be changed. |
Specification
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Measurement |
Up to 4 components (NOx, SO2, CO2, CO) and O2 in flue gases. |
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Measurering method |
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NOx, SO2, CO2, CO: Non-dispersive Infrared method |
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O2: Zirconia or paramagnetic method | |
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Measuring ranges |
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NOx: |
:0-50 ppm to 0-5000 ppm |
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SO2: |
0-100 ppm to 0-1000 ppm |
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CO2: |
0-1 vol% to 0-20 vol% |
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CO: |
0-50 ppm to 0-5000 ppm |
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O2: |
0-10/0-25 vol% | |
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Display |
LCD with backlight |
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Output signal |
5 points, 4-20mA DC or 0 - 1 V DC |
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Contact output |
Each component range identification, analyzer failure, calibration failure, calibration status, maintenance status, CO peak count alarm, each instantaneous value alarm, and analyzer power shutdown |
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Contact input |
Voltage-free contact, auto calibration start, average reset, Range switching output hold, remote pump off |
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Automatic calibration function |
Zero, span are auto calibrated (calibration cycle settable)
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Interval range;1 to 99hours (1hour increments) or 1 to 40days (1day increments) |
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Time of calibration gas flow: 60 to 599seconds (1second increments) | |
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Construction |
Outdoor/indoor stand-alone system, non-explosionproof, rainproof, single swing front door, standard plate thickness of 2.3 mm (both housing and door) |
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Ambient temperature |
-5 to 40℃ |
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Ambient humidity |
90%RH or less |
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Power supply |
100/110/115/200/230 V AC ±15%, 50/60 Hz ±0.5 Hz |
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Power consumption |
Max. 600 VA |
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Weight |
Approx. 300 kg (without standard gases) |
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Sample gas conditions |
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Temperature: 1400℃ or less |
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Dust: 500 mg/Nm3 or less |
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Pressure: -1 to 5kPa, -3 to 3kPa, -5 to 1kPa |
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Flow rate: Approx. 2 l/min | |
Performance
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Linearity |
±1.0% F.S. |
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Repeatability |
±0.5% F.S. |
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Drift |
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Zero: |
±1% F.S./week, ±2% F.S./ week for the range of 200 ppm or less |
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±2% F.S./month for zirconia oxygen analyzers | |
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Span: |
±2% of F.S./week |
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±2% F.S./month for zirconia oxygen analyzer | |
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Response time
(From the inlet of
the system) |
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Approx. 4 minutes for SO2 |
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Approx. 2 minutes for others | | |
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