A wall mounted oxygen analyzer in a NEMA enclosure, suitable for indoor or outdoor. This single channel oxygen meter can be used with flow-through O2 cells for in-line gas analysis in safe as well as hazardous areas where ATEX approval is needed. The low detection limit of 0.05ppm offers ultra-low oxygen measurement down to a range of 0 to 10 ppm. Ideal for clean gas applications and when used with the XLT oxygen sensor type it allows measurement in pure carbon dioxide. The Analytical Industries long-life oxygen sensors are maintenance-free sealed electrochemical cells that don’t need top up of electrolyte and can be exchanged in few minutes.

Features of Trace Oxygen Analyzer: sample panel or wall-mounted

  • Multiple user-configurable oxygen measurement ranges available
  • General purpose or intrinsically safe (ATEX) models
  • Fast recovery from exposure to air
  • Can measure in pure CO2 with XLT sensor
  • Two alarms with GPR-1500 A analyzer model

GPR-1500 A GPR-1500 N GPR-1500 N ATEX
Measurement range 0-10, 0-100, 0-1000 ppm, 0-1%, (0-25%)
Accuracy < 2% of selected range at constant conditions
Response time T90 < 10 seconds
Sensitivity (LDL) 0.05 ppm
Linearity <1% of scale
Sensor model GPR-12-333 for inert gas streams
Sensor life at 25ºC (77°F) and 1 atm 24 months in < 1000 ppm O2
Calibration interval 30 days
Inlet pressure 0.34-2 barg (5-30 psig) with atmospheric vent
Flow rate 0.5-1.0 l/m (1-2 SCFH)
Gas connections 1/8" or 1/4" compression tube fittings
Wetted parts Stainless steel
Display Graphical LCD 7 x 3.5cm (2.75 x 1.375"); resolution 0.01
Enclosure Fiberglass NEMA 4X, 6.75 x 8.375 x 4.25" Fiberglass NEMA 4X, 6.75 x 8.375 x 4.25"
Weight 3.6kg (8lbs)
Compensation Temperature compensated output Temperature
Signal output 4-20 mA or 1-5 V, optional Modbus 4-20 mA
Alarms Two user configurable alarms No alarms
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)
Power 12-28 V DC non-loop or 110-220 VAC 18-24 V DC
Area classification General purpose UL: Class I, Division 1, Group C, D hazardous areas with external intrinsic safety barrier
  II 2 G
  Ex ia IIB T4
Tamb -20°C to +50°C
Recovery time 30 seconds in air to < 10 ppm in < 1 hour on N2 purge

GPR-1500 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.