GE
Sensing
Applications
OxyTrak™ 390
Panametrics Flue Gas
Oxygen Analyzer
OxyTrak 390 is a Panametrics
product. Panametrics has joined
other GE high-technology sensing
businesses under a new name
_
GE Industrial, Sensing.
The OxyTrak 390 flue gas analyzer measures unburned
oxygen levels in dirty, aggresive combustion applications
including:
• Boilers_all fuels and all types, including marine,
recovery and utility
• Furnaces_all fuels and all types, including heat
treating, glass and process
• Rotary kilns_ore reduction, cement, alumina
processing and others
• Incinerators_industrial, municipal and hazardous
waste
Features
• Ex situ diffusion/convection loop design with zirconium
oxide oxygen sensor for measurement accuracy and
durability
• Sensor housing maintains steady temperature for
greater accuracy and longer sensor life
• Automatic calibration and verification
• Optional sensor to measure CO, H2and other
combustibles
• Corrosion-resistant design with plug-resistant sample
path
• Easy installation and sensor replacement
• Suitable for temperatures up to 3182°F (1750°C)
g
GE
Sensing
Why Monitor Flue Gas?
In an ideal combustion process, fuel and air burn
stoichiometrically to yield only heat, water vapor and
carbon dioxide. In reality, burners age, mixing is
imperfect, caloric value of fuel varies and firing rates
change. These factors change the amount of air required
for safe and efficient combustion of fuel. Accurate flue
gas analysis minimizes fuel costs and reduces pollution
in all combustion processes.
Too little O
2
Increase air
supply
Typical
zone of
control
Too much O
2
Decrease air supply
0 1 2 3 4
Combustibles
losses
O
2
and
combustibles
optimum
control
point
O2only
operating
set point
Excess
air losses
Typical Combustion Control Scenario
% Excess O
2
PPM Combustibles
Combustibles applications typically trim burner air supply to
run excess oxygen at an optimal level to ensure complete
combustion. Reducing excess oxygen reduces fuel costs by
improving combustion eff iciency.
OxyTrak 390 Series_A Step Ahead of
Traditional Flue Gas Analyzers
The OxyTrak 390 combines state-of-the-art
measurement technology with a unique sampling
design. The result is an accurate, low-cost analyzer that
stays on the job for extended periods with minimal
maintenance. It responds in seconds to changes in flue
gas concentrations of oxygen and/or combustibles,
constantly providing the information you need to keep
your boiler or furnace operating at maximum efficiency.
OxyTrak 390 special design features include:
Stable, Accurate, Wide-Range Oxygen Sensor
The zirconium oxide oxygen sensor, is housed in a
furnace that maintains the O2sensor at a steady 1292°F
(700°C). The temperature stability improves accuracy
and extends the sensor’s life.
Corrosion-Resistant Design
The manifold heater block located at the sample inlet
prevents manifold corrosion due to flue gas acid
condensation and corrosion is prevented, ensuring
maximum analyzer life with minimum maintenance.
Optional Platinum-Catalyst Combustibles Sensor
A unique platinum-catalyst sensor is available to
measure levels of combustibles (CO plus H2). This is
useful for detecting incomplete combustion or defective
burner equipment.
Simple Installation
The OxyTrak 390 can be installed on a flue or furnace on
an existing flange mount. Because it utilizes the ex situ
convection loop design, reference air is not needed.
Fast, Easy Routine Maintenance
Calibration is easily achieved by introducing a calibrated
gas through the convenient calibration port and making
an automatic adjustment via the display controller. For
sensor replacement, there is no need to remove the
entire analyzer from the flue. Since the sensor is ex situ,
it can be quickly removed with basic tools.
Plug-Resistant Sample Path
A diffusion-based sampling technique greatly reduces
the entry of particulates into the analyzer. If necessary,
quick and easy cleaning is possible without
disassembling the unit.
Sampling
space
Sample
inlet
pipe
Sample
return
pipe
Heated
inlet
block
prevents
acid
condensation
and
corrosion
Sample
convection
loop
Oxygen
sensor
furnace
Zirconium
oxide
oxygen
sensor
Removable nuts
for replacing
oxygen sensor
Unique OxyTrak 390 ex situ diffusion convection loop design is better
than traditional flue gas analyzers because it provides a clean gas to the
sensor and resists plugging.
Calibration port
Diffusion-based
sampling reduces
particulate
plugging
Optional Pt-catalyst
combustibles sensor
GE
Sensing
OxyTrak 390
Specifications
Performance
Accuracy
• Oxygen: ±0.1% O2(0 to 10% O2) and
±0.2% O2(10 to 25% O2)
• Combustibles: ±20 ppm or ±5% of reading,
(Optional) whichever is greater
Repeatability
• Oxygen: ±0.05% O2(0 to 10% O2) and
±0.1% O2(10 to 25% O2)
• Combustibles: ±10 ppm or ±2% of reading,
(Optional) whichever is greater
Output Resolution
• Oxygen: ±0.01% O
2
• Combustibles: ±1% of full scale (FS)
(Optional)
Stability
• Oxygen: <0.2% O2per year
• Combustibles: <200 ppm per year
(Optional)
Measurement Range
• Oxygen: 0 to 1% to 0 to 100% O2,
user-selectable
• Combustibles: 0 to 500/1000/2000/5000/
(Optional) 10,000 ppm; 0 to 2%
Process Pressure Effect
>±0.05% O2per psi (bar) pressure compensation
Supply Voltage Effect
>±0.05% O
2
Response Time
• Oxygen: 90% step change within 20 s
typical
• Combustibles: 90% step change within 20 s
(Optional) typical
Functional
Display
Intuitive, state-of-the-art microprocessor-based
controller displays readings for up to three
user-specified process conditions (% O2, ppm
combustible, furnace temperature, heater block
temperature)
Output
• Analog: three linearized, isolated, 4 to 20 mA outputs,
user selectable, field programmable for O2or
combustibles over any range
• Alarm: eight configurable relays:
-Oxygen; high and low
-Combustibles; high and low
-Autocalibration or autoverification, two relays for O
2
and/or two relays for combustibles
-System fault
-Blowback feature
• Digital
-Standard: PanaView™ via RS485 or RS232, user
selectable
Mating flange,
bolts, nuts
OxyTrak 390 probe
and probe sleeve
Flange
Flue wall
Nozzle
Flue gas flow
Typical horizontal flue gas analyzer installation
GE
Sensing
Physical
Sensor Type
• Oxygen: Stabilized zirconium oxide
• Combustibles: Catalytic-combustion, platinum RTD
(Optional)
Wetted Materials
316 stainless steel
OxyTrak 390
Specifications
©2005 GE. All rights reserved.
920-091B
All specifications are subject to change for product improvement without notice.
OxyTrak™ trademark of GE. GE®is a registered trademark of General Electric Co. Other
company or product names mentioned in this document may be trademarks or
registered trademarks of their respective companies, which are not affiliated with GE.
www.gesensing.com
Display/Controller
Enclosure and User Interface
• External 6-button keypad for field programming
• Large, 128 x 64 pixel LCD graphic display
• User-configurable display
• Local or remote installation of controller display
(25, 50 and 100 ft standard cable lengths)
• Proprietary Proportional Integral Derivative (PID)
control circuit (patent pending) provides the highest
level of O2measurement accuracy via exceptional
sensor furnace temperature control
• Weatherproof Type 4X, IP67 enclosure
• Size (h x w x d): 8.8 x 8.2 x 3.6 in (220 x 210 x 90 mm)
Power
• Supply: 115/120 or 230/240 VAC
• Consumption: 350W
Output Load
600 S
European Compliance
Complies with EMC Directive 89/336/EEC, 73/23/EEC LVD
(Installation Category II, pollution degree 2)
Ambient Temperature Range
• Analyzer: -22°F to 158°F (-30°C to 70°C)
• Analyzer, optional: High dew point version available
• Display/controller: -4°F to 140°F (-20°C to 60°C)
Sensor Temperature
• Standard: 1292°F (700°C)
• Optional: 1418°F (770°C)
• Optional: 1493°F (812°C) for high sulfur applications
Flue Gas Temperature Range/Probe Material
• Up to 1200°F (650°C)/316 stainless steel
• 1200°F to 1750°F (650°C to 950°C)/MA253 stainless
steel
• 1750°F to 2900°F (950°C to 1600°C)/Mullite
• 2900°F to 3182°F (1600°C to 1750°C)/Alumina
Warm-Up Time
50 minutes typical
Calibration Verification
3 modes: Manual, AutoCal and AutoVerify
Calibration gas flow rate: 240 ±10 cc/min
g
Probe Lengths
• Standard: 24 in (0.6 m), 39 in (1 m) or 55 in (1.4 m)
• Other lengths available upon request
Overall Dimensions (h x w x d)
22 in x 17 in x 12 in (559 mm x 431 mm x 305 mm), not
including mounting flange or probe and probe sleeve)
Total Weight (19 in (483 mm) probe)
25 lb (11.4 kg)
Mounting
• Standard: 1 1/2 in MNPT
• Optional: DN80 PN16, 3 in and 4 in CS flanges
Housing
• Analyzer: Type 2; IP52
Loading...