- Brand: Michell Instruments
Tags: Portable, Oxygen, Analyzers, for, Purity, Measurements, Michell, Instruments
Portable Oxygen Analyzers for Purity Measurements
GPR-1200 & GPR-3500
Analytical Industries’ high-accuracy portable oxygen analyzers are for applications which must be controlled at several defined measurement points. The GPR-3500 model has a compact, rugged enclosure and includes stainless steel wetted parts, integrated flow meters and needle valves. It measures purity for inert gases, carbon-dioxide and oxygen. The GPR-1200 compact portable trace oxygen analyser features a 4-way valve that traps a gas sample in the sensor. This enables faster oxygen measurement times when moving from point to point in a process and also protects trace oxygen sensors from premature depletion due to exposure to ambient oxygen levels to increase their lifespan. It all adds up to economical operation and low cost of ownership for this market-leading portable oxygen analyzer range.
Product Features
- Measurement ranges from 0-10 ppm up to 0-100% O2
- Accuracy of better than 2% of range
- 24-32 months sensor life span (in normal use)
- Up to 30 days battery life
- Internal pump option
- 0-1V output
- XLT sensor options for CO2 backgrounds
- Rugged industrial enclosures
Technical Specifications
| GPR-1200 MS-2 | GPR-1200 | GPR-3500 MOVR | |||
| Performance Specifications | |||||
| Measurement Range | 0-1, 0-10, 0-100, 0-1000 ppm | 0-10, 0-100, 0-1000 ppm, 0-1% 0-25% | 0-100% | ||
| Accuracy | < 3% or 10 ppb (whichever is greater) at constant conditions | < 2% or 0.2 ppm (whichever is greater) at constant conditions | < 2% at constant conditions | ||
| Response time | T90 <10 seconds | T90 <13 seconds | |||
| Sensitivity (LDL) | 5 ppb | 0.05ppm | 0.1% | ||
| Response Time | T90 <10 seconds | ||||
| Linearity | < 1% of scale | ||||
| Sensor model | GPR-12-2000MS-2 | GPR-12-333 XLT-12-333 for gas mixture with > 0.5% CO2 |
GPR-11-120-OP | ||
| Sensor life at 25ºC (77°F) and 1 atm | 24 months in < 100 ppm O2 | 24 months in < 1000 ppm O2 | 24 months in 100% O2 | ||
| Calibration interval | 30 days | ||||
| Inlet pressure | 0.34 - 2 barg (5-30 psig) with atmospheric vent | 248.2 barg (3600 psig) | |||
| Flow rate | 0.5 - 1.0 l/m (1-2 SCFH) | ||||
| Gas connections | 1/8" compression tube fittings 1/4" compression tube fitting on outlet (GPR-3500-MOVR) |
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| Wetted parts | Stainless steel | ||||
| Display | Graphical LCD 7 x 3.5cm (2.75 x 1.375") | ||||
| Resolution | 0.001ppm | 0.01ppm | 0.1% | ||
| Enclosure | Painted aluminum NEMA 4X, 21.8 x 22.9 x 7.6cm (8.6 x 9 x 3") | ||||
| Compensation | Barometric pressure and temperature | ||||
| Signal output | 0-1V | ||||
| LED indicators | LOW BATT (72 hr. warning); CHARGE mode |
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| 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) |
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| Power | Rechargeable battery (lead acid) | ||||
| Battery life | Up to 30 days on a single charge (40 hours with pump running, if fitted) | ||||
| Area classification | General purpose (safe area) ATEX: II 2 G Ex ib IIB T4 Gb Tamb +5°C to +45°C |
General purpose only | |||
