GE Sensing Delta F Specifications

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GE
Sensing
Applications
The nondepleting oxygen cell is an electrochemical oxygen sensor used for oxygen measurement in the following industries and applications:
Metals Industry
•O2atmospheres in heat-treating furnaces
Semiconductor Industry
• Gas purity/trace O
2
Gas Production Industry
• Purity monitoring of argon, hydrogen, nitrogen and helium
Petrochemical Industry
• Purity of olefins
Features
• Used with Moisture Series analyzers to measure oxygen concentration in gases from trace to percent levels
• Ultralow range for ultrapure gas applications is sensitive to less than 5 ppb oxygen
• Sensors available for indoor/outdoor water- and dust-tight enclosures
• No gas scrubbing equipment needed for acid gas applications
• No periodic replacement or reconditioning of cells is needed
• Explosion-proof sensors available for hazardous areas
• VCR fittings assure system cleanliness and integrity
Panametrics Electrolytic Oxygen Sensor
Nondepleting Oxygen Cell is a Panametrics product. Panametrics has joined other GE high-technology sensing businesses under a new name_GE Industrial, Sensing.
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Nondepleting Oxygen Cell
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Nondepleting Oxygen Cell with Electrolytic Oxygen Sensor
Periodic Replacement and Reconditioning Eliminated
The sensor operates on a simple coulometric process in which oxygen in the sample gas is reduced in an electrochemical cell. Unlike conventional electrochemical oxygen cells, the electrodes in this advanced cell are nondepleting, so they don’t undergo chemical changes as oxygen is measured. As a result, periodic cell replacement or conditioning is not required.
Parts Per Billion Oxygen Measurement
For oxygen measurement in ultrapure gas applications, an ultralow range sensor that is sensitive to less than five ppb is available. The sensor is equipped with VCR fittings to ensure system cleanliness and integrity.
Withstands Acid Gases
For most applications where acid gas constituents are present, the patented STAB-EL™ electrolyte option eliminates the need for troublesome gas scrubbing equipment by permitting direct exposure of the cell to the gas stream. These cells have a reputation for reliability in applications that are too difficult for most other oxygen sensors.
Sensor Placement
The basic sensor is available separately. However, for Type 4 applications requiring indoor/outdoor water- and dust-tight enclosures, an R4 sensor is available that is housed in a weatherproof enclosure with integral mounting flanges. For hazardous (classified) locations, an R7 sensor is available. It is housed in an explosion-proof, aluminum electrical box that is rated for hydrogen service, and can be used in Class I, Groups B,C&D; Class II, Groups E,F&G; and Class III, hazardous locations.
GE
Sensing
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Overall
Type
Nondepleting electrolytic oxygen sensing cell
Available Cells
ppbv O2Range
• L: 0 to 500 ppbv/5 ppmv/50 ppmv
• Ranges for each cell are software selectable in Panametrics analyzers
ppmv O2Ranges
• A: 0 to 1/10/100 ppmv
• B: 0 to 10/100/1,000 ppmv
• C: 0 to 100/1,000/10,000 ppmv
• D: 0 to 50/500/5000 ppmv
• Ranges for each cell are software selectable in Panametrics analyzers
Percent O2Ranges
• A: 0% to 5%
• B: 0% to 10%
• C: 0% to 25%
Accuracy
• ±1% full scale (FS) (ranges > 0 to 2.5 ppmv)
• ±5% FS (ranges < 0 to 2.5 ppmv)
Sensitivity
Less than 5 ppb (0 to 500 ppbv range)
Response Time
• Sensor responds instantaneously to O2change
• Equilibrium time is application specific
Ambient Temperature
32°F to 120.02°F (0°C to 49°C)
Nondepleting Oxygen Cell Specifications
Background Gas Compatibility
• Standard cell: Ultrapure inert gases
• STAB-EL® cell: All gas compositions including those containing “acid” gases such as CO2, H2S, Cl2, NOx, SO2, etc.
STAB-EL® option required for all gases except ultrapurified gases to pure gas processes.
Max
GE
Sensing
Min
Max
Min
1.62 in
(41.1 mm)
1.23 in
(31.2 mm)
2.05 in
(52.1 mm)
1.31 in
(33.3 mm)
0.37 in
(9.4 mm)
See note
Left View
Front View
2.78 in
(70.6 mm)
Electrolyte level window
Electrolyte reservoir
Sample gas inlet 1/8 in tube fitting
Sample gas outlet 1/8 in tube fitting
1.05 in
(26.7 mm)
0.52 in
(13.2 mm)
5.88 in
(149.4 mm)
Secondary positive electrode terminal (+)
Secondary negative electrode terminal (_)
4.91 in (124.7 mm)
Primary sensing positive (+) electrode
Primary sensing negative (_) electrode
Right View
Bottom View
0.5 in
(12.7 mm)
0.25 in
(6.35 mm)
1.5 in
(38.1 mm)
0.62 in
(15.8 mm)
Reservoir fill cap (also used for draining of top draining cells)
This dimension is dependent upon the oxygen range of the sensor used and varies as follows:
Range Dimension in (mm)
5,000 ppm 2.74 (69.6)
1% 2.85 (72.4)
25% 2.98 (75.7)
2.5%, 5%, 10% 3.10 (78.7)
Nondepleting oxygen cell dimensions
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g
©2005 GE Infrastructure Sensing. Inc. All rights reserved. 920-014B
All specifications are subject to change for product improvement without notice. Moisture Image
®
, Moisture Monitor™ are registered trademarks or trademarks 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.
R7 oxygen sensor cell (Type 7)
Hazardous Area Classification
• Intrinsically safe when connected to a GE’s Panametrics Moisture Series analyzer (rack-, bench- or panel-mount Series 1, 2 or 3 with serial no. 2001 or above) in accordance with the user’s manual. The oxygen cell connection to the analyzer must comply with IP20 protection requirements.
II 1 G EEx ia IIC T5 –4°F to +122°F (–20°C to +50°C)
• BAS01ATEX1098X
European Compliance
Complies with EMC Directive 89/336/EEC when connected to a Moisture Image® Series 1, Moisture Image® Series 2 or Moisture Monitor™ Series 3 analyzer
Sample Requirements
Inlet Pressure
• Less than –0.5 psig (-0.03 barg) (use compressor)
• -0.5 psig to 0.2 psig (-0.034 barg to 0.013 barg) (use pump)
• 0.2 psig to 1.0 psig (0.013 barg to 0.06 barg) (standard range)
• 1.0 psig to 60 psig (0.06 barg to 4.13 barg) (use valve or regulator)
• 60 psig (4.13 barg) (use pressure regulator)
Flow Rate
0.5 to 1.5 L/min
Moisture
No limits (avoid condensation)
Oil/Solvent Mist
• Less than 0.5 mg/ft3(standard range)
• Greater than 0.5 mg/ft3(use filter)
Solid Particles
• Less than 2.0 mg/ft3(standard range)
• Greater than 2.0 mg/ft3(use filter)
R4 FRP oxygen sensor cell (Type 4)
6 in
(152 mm)
1/4 in (8 mm) tube fitting
Max
www.gesensing.com
GE
Sensing
8.5 in
(216 mm)
10.94 in
(277.8 mm)
10.5 in
(266.7 mm)
Min
3 in
(76.2 mm)
Access for electrical connections
3 in
(76.2 mm)
5.25 in
(133.4 mm)
Top View
Access for
fluid addition
1.75 in
(44.4 mm)
1.75 in (44.4 mm)
9 in
(228.6 mm)
10.25 in
(260.4 mm)
Ø 0.44 in
(11.2 mm)
8.5 in
(215.9 mm)
9.75 in
(247.6 mm)
0.625 in
(15.8 mm)
8.38 in
(212.7 mm)
11 in (279.4 mm)
Access for
fluid addition
Sample
gas outlet
1/4 in NPTF
Sample
gas inlet
1/4 in NPTF
Side View Front View (face cover removed)
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