Updated:2023-10-19
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O2 Monitors for Glove Boxes and Nitrogen Generators
Features
Measurement ranges from 0-10ppm up to 0-25% O2
Accuracy of better than 2% of range
24 months sensor life span (in normal use)
4-20 mA output
18-24V loop powered
XLT sensor options for CO2 backgrounds
Designed specifically for measuring oxygen in glove boxes from air (21% O2) down to low levels (0-10 ppm O2), this oxygen transmitter range has easy installation options that ensure the best fit with the glove box operators needs. The analyzer or remote sensors can be connected directly on the glove box using a KF-40 flange. In the remote version the oxygen sensor can be placed in the glove box using our sample/calibration module.
Specifications
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 |
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