HACH
HACH Orbisphere Electrochemical Oxygen (O₂) Sensor, PEEK, 20 bar, EPDM O-Ring PN.31110.02
HACH Orbisphere Electrochemical Oxygen (O₂) Sensor, PEEK, 20 bar, EPDM O-Ring PN.31110.02
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Orbisphere 311XX - the ultimate in O2 sensors
The patented polarographic sensor design provides fast, accurate oxygen (O2) measurements in gaseous or liquid samples. Wide range of temperature and pressure ranges. Precise measurement from 0.1 ppb to 2000 ppm. Detection limit of ± 0.1 ppb or 100 ppt. Guard ring electrode design improves speed of response and reduces interferences. Calibrate in air for ease of use or against a sample of known oxygen content. Rugged construction for harsh environments. Sensitivity range meets any need, from trace levels to super saturation.
Sensor specifications depend on individual membrane chosen. Please click on the Downloads tab for the Installation and Maintenance Manual for appropriate sensor information.
Benefits
Guard Ring Electrode Design
An auxiliary guard ring electrode surrounds the working electrode to shield against the influence of other gases and improve stability.
Rugged Construction
Use for harsh chemicals, hot CIP and high pressure situations.
Flexibility
Installs in-line for process control, or in flow chamber for spot measurement. Cable detaches at sensor end for installation and maintenance flexibility.
From trace levels to super saturation
Unrivalled detection limit of ± 0.1 ppb or 100 ppt
Specifications
Technical Attributes
| Accuracy | ±1% of reading, or ± lower measurement range, whichever is greater |
| Ambient Temperature | -5 - 100 °C (23 - 212 °F) |
| Certifications | 2004/108/EC - EN 61326-1 |
| Fast Temperature Change Option | No, 20 bar |
| Flow Rate | Recommended flow rate in flow chamber 2935A: 20 mL/min 2952A: 30 mL/min 2956A: 180 mL/min 29552A: 50 mL/min |
| Material | O-Ring: EPDM |
| Parameter | Oxygen |
| Protection Class | IP68 / NEMA4 |
| Range | Range at 25 °C 2935A : 10 ppb-400 ppm or 20 Pa-1,000 kPa 2952A : 1 ppb-80 ppm or 5 Pa-200 kPa 2956A : 0.1 ppb-20 ppm or 0.25 Pa-50 kPa 29552A : 2 ppb-80 ppm or 5 Pa-200 kPa |
| Response Time | 2935A: 2.5 min 2952A: 38 s 2956A: 7.2 s 29552A: 90 s |
| Sample Pressure | 0 - 20 bar |
| Sensor material | PEEK |
| Special Features | Silver guard ring |
| Temperature Range | Temperature compensated range from -5 - 50 °C (23 - 122 °F) |
| Warranty | 12 months |
| Weight | 0.2 kg |
| What's included? | Oxygen sensor only. Compatible instrument, maintenance kits, sampling devices, cables, must be ordered separately |
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