The GPR-2800 series of process oxygen analyzers allows measurements of 0-1 up to 0-25% O2 in hazardous areas. Combined with our modular sample system, the gas analyzer will suit most installations for demanding oxygen analysis and will meet the needs of process customers around the world. Analytical Industries' proprietary long-life oxygen sensor technology allows a maintenance-free sensor operation of up to 32 months for low cost of ownership. The industry-proven and well recognised electrochemical gas sensor quality ensures the reliability of oxygen content measurements even at high carbon dioxide background.

Features of Process Oxygen Analyzers for Hazardous Areas

  • UL or ATEX certified for use in hazardous areas
  • Four measurement ranges 0-1%, 0-5%, 0-10% & 0-25% O2
  • Low maintenance with an average sensor life of up to 32 months (for GPR sensor)
  • Sample in CO2 backgrounds with XLT sensor
  • Easy to use HMI
  • Optional Modbus communications
  • Optional liquid drain option for removing entrained liquids

GPR-2800 IS GPR-2800 AIS GPR-2800 AIS LD GPR-2800 IS LD
Measurement range 0-1%, 0-5%, 0-10% & 0-25% O2
Accuracy < 2% of selected range
Response time T90 < 10 seconds
Sensitivity (LDL) 0.005% (50 ppm) O2
Linearity <1% of scale
Sensor model GPR-11-32 GPR-11-32-LD
Sensor life 32 months in air at 25°C (77°F) and 1 atm
Sensor model XLT-11-24 XLT-11-24-LD
Sensor life (in air 5% and 1 atm) 24 months in air
Calibration interval 30 days
Operating temperature GPR sensor: 5°C to 45°C (41°F to 113°F)
XLT sensor: -10° to 45°C (14°F to 113°F)
Inlet pressure 0.34-2 barg (5-30 psig) with atmospheric vent
Flow rate 0.5-1.0 Nl/m (1-2 SCFH)
Gas connections 1/8" compression tube fittings 1/4" compression tube fittings
Wetted parts 316 Stainless steel
Display Graphical LCD 7 x 3.5cm (2.75 x 1.375"); resolution 0.001
Enclosure NEMA Type 3R suitable for rain in outdoor applications (UL) NEMA 4x (ATEX)
Compensation Temperature
Signal output 4-20 mA 4-20mA or 1-5V DC 4-20mA
Communications Optional Modbus RTU (AIS - 24 V models only)
Alarms None Two user configurable alarms: magnetic coil relays rated 3A at 100 V AC None
Power 18-24 V DC (IS models)
12-28 V DC or 110-220 V AC (AIS models)
Area classification UL: Class I, Division 1, Groups C and D
Ex d [ib] ib IIB T4 Gb
Tamb -20°C to +50°C"

GPR-2800 Series

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CALL 909-392-6900
Analytical Industries Inc.
2855 Metropolitan Place,
Pomona, CA, 91767
What we do
Analytical Industries Inc manufactures high-quality electrochemical oxygen sensors and gas analyzers for industrial process control as well as breathing air for diving and medical treatment.