Explosion-proof oxygen analyzers for petrochemical industries processes containing hydrogen and other flammable gases. This trace and percent oxygen analyzer is supplied in a rugged Exd enclosure and when supplied with flame arrestors this oxygen meter is suitable for hazardous areas. The oxygen sensitivity of the field-proven electrochemical sensor allows to measure oxygen from as low as 0-1 ppm up to 0-25% O2.

  • High quality galvanic oxygen sensor technology
  • Long O2 sensor life 24 to 36 months for low maintenance
  • No need for frequent electrolyte top-up
  • Field-proven superior electrochemical sensor stability
  • Accuracy ±2% of selected range
  • Sensitivity < 0.5% of range
  • 4 standard measurement ranges
  • Flame arrestors fitted (standard)

GPR-18 MS-2 GPR-18 GPR-28
Measurement range 0-1 ppm, 0-10, 0-100 ppm & 0-1000 ppm 0-10 ppm, 0-100, 0-1000 ppm & 0-1%
(0-25% for calibration only)
0-1%, 0-5%, 0-10% & 0-25%
Accuracy < 2% of range
Response Time T90 < 20 seconds T90 < 10 seconds
Recovery Time O2 Level: Air
Duration: 30 Sec
O2 Target:10 ppm
Recovery on N2: 45 minutes *
O2 Level: Air
Duration: 2 minutes
O2 Target:10 ppm
Recovery on N2: 60 minutes *
O2 Level: Air
Duration: 30 sec
O2 Target: 0.1%
Recovery on N2: 30 seconds
O2 Level: 9 ppm
Duration:2 minutes
O2 Target: 0.1 ppm
O2 Level: Air
Duration: 2 minutes
O2 Target: 1 ppm
Recovery on N2: 20 minutes **
* Installation
** In service for 2 weeks at 0.1 ppm
Sensitivity (LDL) < 0.5% of range
Linearity < 1% of scale
Sensor model GPR-12-2000MS GPR-12-333
XLT-12-333 (> 0.5% CO2 present)
GPR-11-32
XLT-11-24 (> 0.5% CO2 present)
Sensor life at 25ºC (77°F) and 1 atm 36 months; average O2 < 100 ppm 24 months; average O2 < 100 ppm GPR-11-32 32 months in air;
XLT-11-24 24 months in air
Calibration interval 1-3 months
Inlet pressure 0.34-2 barg (5-30 psig), max 100 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 3½ digit bright red LED; resolution 0.01 ppm GPR-18, 0.001 PPM GPR-18MS2, 0.001% GPR-28
Enclosure - ULAluminum 30.4 x 29.2 x 26.7cm (12 x 11.5 x 10.5”) wall mount, 22.7kg (50lbs)
Enclosure - ATEXAluminum 40.6 x 45.7 x 27.9cm (16 x 18 x 11”) wall mount, 31.8kg (70lbs)
Compensation Temperature
Signal output 4-20 mA isolated and 0-1V
Alarms 2 adjustable form C relay contacts non-latching; sensor and power failure
Operating temperature 5°C to 45°C (41°F to 113°F) GPR Sensor: 5°C to 45°C (41°F to 113°F)
XLT Sensor: -10° to 45°C (14°F to 113°F)
Power 100/120 or 220/240 V AC
Certifications Conforms to UL: Class 1, Division 1, Groups B, C, D NEMA4/7 hazardous areas (enclosures only) ATEX: EExd d IIB+H2 T6


GPR-18 Series and GPR-28 Series

* These fields are required.

 
 
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CALL 909-392-6900
Analytical Industries Inc.
2855 Metropolitan Place,
Pomona, CA, 91767
USA
909-392-6900