| | GPR-1500 GB | GPR-2500 GB |
| Measurement range | 0-10, 0-100, 0-1000 ppm, 0-1%,
0-25% (calibration only) | 0-1%, 0-5%, 0-10%, 0-25% |
| Accuracy | < 2% of selected range at constant conditions | Accuracy |
| Response time | T90 < 10 seconds | Response time |
| Recovery time | 60 seconds in air to < 10 ppm in < 1 hour on N2 purge | Not applicable |
| Sensitivity (LDL) | 0.05 ppb | 0.01% |
| Linearity | < 1% of scale | < 1% of scale |
| Sensor model | GPR-12-333
XLT-12-333 for gases containing > 0.5% CO2 | GPR-11-32-4
XLT-11-24-4 for gases containing > 0.5% CO2 |
| Sensor life at 25ºC (77°F) and 1 atm | 24 months in < 1000 ppm O26 months in air | GPR-11-32-4 32 months in air
XLT-11-24-4 24 months in air |
| Calibration interval | 30 days | 31 days |
| Inlet pressure | Nominally atmospheric
Flow through system: 0.34-2 barg (5-30 psig) with atmospheric vent | Nominally atmospheric
Flow through system: 0.34-2 barg (5-30 psig) with atmospheric vent |
| Flow rate | Ambient monitoring or Flow through system 0.5-1 Nl/min (1-2 SCFH) | Ambient monitoring or Flow through system 0.5-1 Nl/min (1-2 SCFH) |
| Gas connections | KF 40 flange or 1/8” compression tube fittings (with flow through housing) | KF 40 flange or 1/8” compression tube fittings (with flow through housing) |
| Wetted parts | GPR-1500 GB Stainless steel GPR-2500 GB Delrin | GPR-1500 GB Stainless steel GPR-2500 GB Delrin |
| Display | Graphical LCD 7 x 3.5cm (2.75 x 1.375"); resolution 0.001 | Graphical LCD 7 x 3.5cm (2.75 x 1.375"); resolution 0.002 |
| Enclosure | Painted aluminum, 7.6 x 10.1 x 5.1cm (3 x4 x2") | Painted aluminum, 7.6 x 10.1 x 5.1cm (3 x4 x2") |
| Weight | 900g (2lbs) | 900g (2lbs) |
| Compensation | Temperature | Temperature |
| Signal output | 4-20mA (loop current) | 4-20mA (loop current) |
| Alarms | None | None |
| 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) |
| Power | 18-24 V DC two wire loop | 18-24 V DC two wire loop |
| Area classification | General purpose | General purpose |
