
SERIES 2520
Percent Oxygen Analyzer
Product shown with optional ow meter
FEATURES BENEFITS
State-of-the-Art Sensor Technology High Precision Measurements
Light Weight/Compact Design Easy to Carry and Transport
Rapid Speed of Response Senses Oxygen Changes in Seconds
Built-in NICAD Batteries Provides Hours of Continuous Operation
Uses Standard NICAD’s Replacement Batteries Found World-Wide
Minimum Maintenance Low Cost of Ownership

System Description
The Series 2520 Portable Percent Oxygen Analyzer is a lightweight, easy-to-use analyzer that provides accurate and repeatable
percent oxygen measurements in a variety of gases. The rugged
and compact design of the Series 2520 makes it ideal for industrial
applications where spot oxygen measurements need to be made.
The Series 2520 can be congured with one of several measuring
ranges from 0-1% to 0-100% oxygen. The standard Series 2520
Portable Percent Oxygen Analyzer is equipped with a 3-1/2 digit
liquid crystal display, built-in NICAD batteries, and a universal AC
adapter that provides the ability to recharge the NICAD batteries
even while powering the analyzer from the adapter.
Specications
PERFORMANCE
Measurement Ranges:
0-5, 0-10, 0-25, 0-50, and 0-100%
Accuracy: ±1% of full scale
Linearity: ±1% of full scale
Response Time: 90% of full scale in <20 seconds
Sensor Type: Electrochemical
Temperature Compensation: Standard
Operating Temperature Range: 40° to 104°F (5° to 40°C)
Warranty: Two years electronics/1 year sensor
ELECTRICAL
Display: 3-1/2 digit liquid crystal display
The Series 2520 Portable Percent Oxygen Analyzer features an
extended life oxygen sensor with EES (Enhanced Electrolyte System) that provides exceptional measurement accuracy and stability. For applications where carbon dioxide is present in the sample
gas, the EES retards passivation of the sensor anode by allowing
the products of oxidation to dissolve in the electrolyte. In effect, the
sensor is renewed continuously, resulting in an increase in sensor
life. The output from the sensor is temperature compensated.
Power Source: Rechargeable NICAD batteries with universal (90 240 VAC) AC adapter
Analog Output: Not available
SAMPLE GAS CHARACTERISTICS
Sample Flow Rate: 1.0 to 2.0 SCFH (0.5 to 1.0 liters/minute)
Sample Gas Pressure Limits: 0.1 to 1.5 psig (0.007 to 0.1 kg/cm2).
CONSTRUCTION
Enclosure: Polycarbonate-rated NEMA 1
Dimensions: 5.8 in. (147.3 mm) Height
6.7 in. (170.2 mm) Width
3.4 in. (86.4 mm) Depth
Note: All dimensions are without optional
equipment
Gas Connections: Quick connect
Weight: <2 pounds (<0.907 kg)
40 Albion Road, Suite 100, Lincoln, RI 02865
Tel: 401.333.8580, 800.262.5977 Fax: 401.333.5550
Email: salescontact@aoi-corp.com Web: aoi-corp.com
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