| | GPR-1600 | GPR-2600 | GPR-3100 |
| Measurement range | 0-10, 0-100, 0-1000 ppm, 0-1%
(0-25% calibration only) | 0-1%, 0-5%, 0-10%, 0-25% | 0-100%, plus suppressed zero ranges.
50, 80, or 90-100% |
| Accuracy | < ±2% of range
±0.1% at constant conditions after calibration with 95-100% oxygen (GPR-3100) | < ±2% of range
±0.1% at constant conditions after calibration with 95-100% oxygen (GPR-3100) | < ±2% of range
±0.1% at constant conditions after calibration with 95-100% oxygen (GPR-3100) |
| Response time | T90 < 10 seconds | T90 < 10 seconds | T90 < 13 seconds |
| Recovery Time | 60 sec in air to < 10 ppm in < 1 hour on N2 purge | N/A | N/A |
| Sensitivity (LDL) | 50 ppb | 50 ppm | 0.1% oxygen |
| Linearity | < 0.5% of scale | < 0.5% of scale | < 0.5% of scale |
| Sensor model | GPR-12-333
XLT-12-333 for gas mixture with > 0.5% CO2 | GPR-11-32-4
XLT-11-24-4 for gas mixture with > 0.5% CO2 | GPR-11-120-OP |
| Sensor life at 25°C and 1 atm | 24 months in < 1000 ppm O2 | GPR-11-32-4 32 months; XLT-11-24-4 24 months | 24 months in 100% oxygen |
| Calibration interval | Typically: 1-3 months | Typically: 1-3 months | Typically: 1-3 months |
| Inlet pressure | 0.34 - 2 barg (5-30 psig) with atmospheric vent | 0.34 - 2 barg (5-30 psig) with atmospheric vent | 248 bar g (3600psig) |
| Flow rate | 0.5 - 1.0 l/m (1-2 SCFH) | 0.5 - 1.0 l/m (1-2 SCFH) | 0.5 - 1.0 l/m (1-2 SCFH) |
| Gas connections | 1/4" compression tube fittings | 1/4" compression tube fittings | 1/4" compression tube fittings |
| Display | Graphical LCD 12.7 x 7cm (5 x 2.75"); resolution 0.01 | Graphical LCD 12.7 x 7cm (5 x 2.75"); resolution 0.01 | Graphical LCD 12.7 x 7cm (5 x 2.75"); resolution 0.01 |
| Enclosure | Painted aluminum
See individual mounting options for dimensions | Painted aluminum
See individual mounting options for dimensions | Painted aluminum
See individual mounting options for dimensions |
| Compensation | Barometric pressure and temperature;
Temperature controlled sample system and sensor (GPR-3100 only) | Barometric pressure and temperature;
Temperature controlled sample system and sensor (GPR-3100 only) | Barometric pressure and temperature;
Temperature controlled sample system and sensor (GPR-3100 only) |
| Analog output | 4-20 mA isolated, 0-1V, and 0-5V | 4-20 mA isolated, 0-1V, and 0-5V | 4-20 mA isolated, 0-1V, and 0-5V |
| Range ID | 1-5 V or 4-20mA, optional relay contacts | 1-5 V or 4-20mA, optional relay contacts | 1-5 V or 4-20mA, optional relay contacts |
| Communications | Choose from RS485, RS232 or USB | Choose from RS485, RS232 or USB | Choose from RS485, RS232 or USB |
| Alarms | Two user-adjustable alarm relays | Two user-adjustable alarm relays | Two user-adjustable alarm relays |
| Operating temperature | GPR sensor: 5°C to 45°C (41°F to 113°F)
XLT sensor: -10°C to 45°C (14°F to 113°F) | GPR sensor: 5°C to 45°C (41°F to 113°F)
XLT sensor: -10°C to 45°C (14°F to 113°F) | GPR sensor: 5°C to 45°C (41°F to 113°F)
XLT sensor: -10°C to 45°C (14°F to 113°F) |
| Power | Universal 100-240 V AC | Universal 100-240 V AC | Universal 100-240 V AC |
