THERMOX - Model WDG-HPII Series - Flue Gas Oxygen Analyzer
From Zirconia Oxygen Analyzers
WDG-HPII Series analyzers offer unique chimney-effect/convective sampling technology that combines the advantages of insitu probe high-particulate sampling with the high temperature and corrosion resistance of extractive analyzers. With a high-particulate filter and weatherproof sensor enclosure, the analyzer is ideal for measurements of O2, combustibles and methane, and is completely field serviceable.
Product Details
The WDG-HPII is designed to operate in conditions where particulate levels are high, and is suitable for flue gas temperatures up to 1537oC (2800oF). Zirconium oxide measures oxygen and catalytic detectors measure combustibles and methane.
The WDG-HPII is ideal for measurement in cement and lime kilns, glass multiple hearth furnaces, metals and mining furnaces, pharmaceutical heaters, power and steam generation boilers and pulp and paper black liquor recovery boilers.
RELIABLE
Using convective sampling, the WDG-HPII relies on diffusion of the sample, reducing the velocity of the gas to eliminate the problem of ‘sand blasting’ the probe. In addition, the analyzer does not use an aspirator, minimizing particulate plugging.
PROVEN ACCURACY
Zirconium oxide sensing delivers a reliable O2 measurement from 0-1% to 0-100% that is industry-proven. For combustibles analysis, an optional catalytic detector measures within 0-2000 parts per million for combustion optimization.
EASY TO SERVICE
Maintenance can be performed on the WDG-HPII without removing it from the process, making it completely field serviceable.
The WDG-HPII series is the close-couple convective analyzer for high-particulate flue gas applications – Find out more.
Features- Weatherproof, stainless steel sensor enclosure
- Completely field-serviceable
- High-particulate filter
- Series 2000 control unit
Specifications
WDG-IV Series Combustion Analyzers
Principle of Operation (O2): Zirconium oxide for net oxygen measurement and dual catalytic detectors for both combustibles and methane.
Output Range (O2): Oxygen: From 0-1 to 0-100%
Accuracy (O2):
- ±0.75% of measured value or ±0.05%, whichever is greater
- Combustibles: ±2% of full scale output range
Response: Oxygen: 90% of a step change < 30 seconds
Aspirator Air Requirements: 10-20 SCFH (4.7 to 9.4 L/min) Typical at 15 to 100 psig
Analog Output: Two isolated linear current outputs for O2, combustibles and hydrocarbon. Each output can be 4-20 mA, 0-20 mA, 20-4 mA or 20-0 mA and is fully scalable. NAMUR Configurable. Hold or track during calibration. Max. load 1200 Ω
Alarms:
- Two independent oxygen alarms each high or low selectable
- Set relays to energize or de-energize on alarm
Contact Rating: 0.5A, 30V, 10VA max. non-inductive load, AC or DC
Digital Communication: 2 wire MODBUS RTU, 57.6 KBaud
Configuration: MODBUS RTU, AMETEK configuration software, or AMEVision HMI
Diagnostics: Watchdog timer and service alarms. Twenty-entry event log.
Calibration: Calibrate or verify calibration. Stored calibration and verification data. Selectable calibration gas run time and process recovery time. Timed automatic calibration with optional Remote Calibration Unit.
Sample Pressure: ±10 in. water gauge
Max. Sample Dewpoint: 392°F (200°C)
Max. Flue Gas Temp. / Probe Type / Lengths:
- 1300°F (704°C) / 316 SS / 36” - 108”(91 cm - 274 cm)
- 1875°F (1024°C) / 310 SS / 36” - 108”(91 cm - 274 cm)
- 3000°F (1648°C) / Hexoloy® / 24” - 72” (60 cm - 182 cm)
Environment:
- Ambient Temp.: -20°C to 71°C
- Relative Humidity: 10% to 90%, non-condensing
Enclosure: Lift-off NEMA 3R, weather resistant, stainless steel.
Power Requirements: 115 VAC, ±10%, 47-63 Hz, 740 VA max.; 230 VAC, ±10%, 47-63 Hz, 740 VA max.
Calibration Gas Requirements:
- Use calibration gases @ 10 psig, 1.53 SCFH (0.7 L/min.)
- O2 Span Gas: Air or from 1.0% to 100% O2, balance N2
- O2 Zero Gas: 2% or from 1.0% to 10% O2, balance N2
Certifications
System Compliance:
- EMC Directive 2004/108/EC
- Low Voltage Directive 73/23/EEC
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