SE707 Oxygen Sensor | Memosens | 120 mm | Ex | Measuring range (resolution) 0 ... 50 mg/l (1 μg/l)
Description
Reliable measurement of oxygen traces, also under sterile and hygienic conditions; signal-stable and robust, digital, with Memosens technology.
- perfect galvanic isolation thanks to Memosens technology
- precalibration in the lab
- no influence of humidity in the connector
- digital data transfer
- integrated sensor diagnostics
- high level of process safety
- durable materials
- robust design
- easy to clean thanks to extremely smooth surface
- very simple calibration in air without calibration gases
- very high resolution of 1 ppb in the trace range
- cost-efficient service due to easy-to-replace membrane module and interior body
- hygienic design
- low cross-sensitivity to CO2
- operation also in hazardous locations
High resolution of low oxygen concentrations, simple and cost-efficient sensor calibration in ambient air. No calibration gases. High signal stability, also in the presence of high CO2 partial pressures.
FDA-conforming material with extremely smooth polished surface. Simple maintenance due to modular design. Sterilizable, autoclavable, and CIP capable. Also suitable for hazardous locations.
Applications
Beverage filling (e.g. milk, beer), measurement in boiler feed water (detection limit 1 ppb)
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| Measurement Parameter: | Oxygen |
|---|---|
| Perm. temp range (measurement): | 0 ... 80 °C |
| Permissible pressure range (measurement): | 0.2 ... 6 bar absolute |
| Connector: | Memosens |
| Explosion protection: | Ex |
| Length: | 120 mm |
| Measuring Range: | pO₂ < 1200 mbar |
| Temperature Detector: | NTC 22 kΩ |
| Measuring Principle: | Amperometric |
| Membrane material: | PTFE/silicone/PTFE, FDA compliant (reinforced with steel mesh) |
| Flow dependence: | ≤ 5 % |
| Signal Transmission: | digital |
| Mechanical pressure resistance: | Max. 12 bar absolute |
| Temperature range (stability): | –5 ... +121 °C (steam sterilizable/autoclavable) |
| Accuracy: | 1 % + 1 ppb (1 % + 3 ppb in liquids containing CO₂) |
| Signal in ambient air: | 290 … 500 nA |
| Response time at 25 °C (air –> N2): | 98 % full scale < 90 s |
| Residual signal in O₂-free medium: | ≤ 0.1% of signal in ambient air | In CO2: ≤ 0.01% of signal in ambient air |
| O-ring material (process-wetted): | silicone (FDA & USP Class VI tested) |
| Process-wetted sensor parts: | Stainless steel 1.4404 (material certificate 3.1B) |
| Surface roughness: | N 5 (RA < 0.4 μm) |
| Interior body incl. electrodes: | replaceable (ZU 0568) |
| Detection limit: | 1 ppb (3 ppb in liquids containing CO₂) |
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