Analytical Industries Inc (AII) PI2-UHP 50, PI2-UHP 100, PI2-MS 500, PI2-MS 1000 Specifications
Oxygen Analyzers for Ultra High Purity Gases
PI2-UHP 50/100 and PI2-MS 500/1000
Based on the stable and long-life Pico-Ion oxygen sensors, the PI2 range of trace oxygen analyzers
provides accurate and stable measurements of oxygen down to low parts per trillion. Low cost
of ownership through minimal maintenance of this high-performance oxygen analyzer make
measurement of oxygen down to ppt level easy and affordable for customers with limited budgets.
PPM
Highlights
• Measuring trace O2 in ultra-pure Ar, H2, He and N
• LDL to less than 100 ppt
• Low cost of ownership
• User friendly and easy to operate and maintain
• Fast recovery from process upsets
• Integrated bypass sample system as standard
• Optional auto calibration system with true zero
feature via O2 scrubber
Applications
2
• Quality checking of ultra-high purity gases
produced by cryogenic air separation
• Validating high purity gases used in electronics
and semi-conductor manufacture
• Commissioning UHP gas lines and processes
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70
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Second generation, nomaintenance Pico-Ion
sensor technology
A high-performance, low ppb oxygen sensor with
stable output requiring no maintenance or frequent
electrolyte additions. The innovative design of the gas
chamber maximizes the rate of oxygen reaction while
the refined proprietary sensor design provides a high
signal output per unit area to enhance sensitivity as well
as a significantly higher output. Further advantages are:
Membrane
Electrolyte
0202020
0
0
2
2
-
0H
0H
i
-
0H
-
0H
-
0H
-
-
0H
-
0H
-
0H
-
0H
-
0H
Pb0 Pb0
-
0H
0H
0H
0H
0H
0H
02020
2
-
-
0H
-
0H
-
0H
-
-
0H
-
0H
-
0H
-
0H
0
2
0
2
2
-
0H
-
0H
-
0H
-
-
0H
-
0H
0H
-
0H
-
-
0H
-
-
0H
-
-
0H
-
0H
Layer
Cathode
Electrolyte
Anode
• Lower detectable limit (LDL) of less than 100ppt
• High signal to noise ratio
• Excellent stability
• Response time of less than 15 seconds
• Minimizes the temperature dependence
• Fast recovery from higher oxygen lev els during process
upset conditions
• Approximately 12 months of continuous use
Sensor Construction
PICO ION Sensor
100
90
80
70
60
50
40
30
Oxygen Reading / Output
20.9%
20
15.2%
10
15.2%
0
0 10 20 30 40 50 60 70 80 90 100
60.6%
40.0%
40.3%
21.0%
% Oxygen Concentration
100.2%
60.3%
100.0%
Typical sensor output
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