Analytical Industries Inc (AII) GPR-1500 GB, GPR-2500 GB Specifications
Oxygen monitors for gloveboxes
and nitrogen generators
GPR-1500 GB & GPR-2500 GB
Designed specifically for measuring oxygen in glove boxes from air (21% O2) down
to low levels (0-10 ppm O2), this oxygen monitor range has easy installation options
that ensure the best fit with the glove box operators needs. The analyzer or remote
sensors can be connected directly on the glove box using a KF-40 flange. In the
remote version the oxygen sensor can be placed in the glove box using our sample/
calibration module.
%
PPM
Highlights
• Measurement ranges from 0-10ppm
up to 0-25% O
• Accuracy of better than 2% of selected range
• 24 months sensor life span (in normal use)
• 4-20 mA output
• 18-24V loop powered
• XLT sensor options for CO2 backgrounds
2
Applications
• Monitoring oxygen in glove boxes
• Oxygen depletion in confined spaces
(GPR-2500 only)
• Measuring oxygen in nitrogen generators
www.aii1.com
Sensor Technology
333
444
556
000
The sensors from AII have been designed to avoid potential
weaknesses common in typical galvanic cell design. Our
materials, construction and assembly methods have been
continuously refined over decades. Each sensor type has
been specifically engineered to provide the optimum
balance between performance and longevity for individual
applications. The result is confidence in the measurement
and low maintenance. In the absence of oxygen, the
sensor will produce zero output and the sensor is linear
up to 100%, therefore only a span calibration is required
in most cases (see graph).
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
Sensor Construction
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%
100.2%
100.0%
60.3%
% Oxygen Concentration
Typical sensor output
The Analytical Industries’ XLT sensor
For applications with a background gas containing more than 0.5% CO2, the specially designed XLT sensor should be
selected. With most standard electrochemical sensors an alkaline electrolyte is used and this is neutralised over time
when exposed to acidic gases, such as CO2. To combat this, AII developed the XLT sensor with a special electrolyte
formula which has the added benefit of being able to operate in temperatures as low as -10°C.
www.aii1.com
Loading...