Polarographic Dissolved oxygen sensor
The S423 solves this problem by using an OPTIFLOW™ membrane. This
membrane is very mechanically stable, is manufactured as a laminate
around a steel mesh and is very resistant to chemically aggressive
environments as well as high pressures.
Thanks to the special construction of the measuring electrodes, this system
also makes the sensor totally “maintenance free”.
| Technical specifications | |
| Measuring range | 40 ppb ÷ 40 ppm |
| Measuring method | measure of the electric current influenced by the oxygen partial pressure |
| Sensitivity | 40 ÷ 80 nA a 25 °C in air |
| Stabilization time | typical 15 min., max. 1 h |
| Required flow rate | ≥ 0.03 m/s |
| Required flow rate | NTC 30 kOhm Oxysens W (NTC 22 kOhm Oxysens – optional ) |
| Operating temperature | 0 ÷ 60°C |
| Maximum pressure | 0 ÷ 4 bar |
| Body material | Stainless Steel 1.4435, PEEK, Silicon, NBR |
| Electrode material | Silver-Platinum combination |
| Membrane material | OPTIFLOW |
| Reference electrolyte | Alkaline solution |
| Electrical connector | Integral cable 5 mt |
| Connection to process | Pg 13.5 threaded |
| Polarisation current | -670 +/- 50 mV |
Knick
SE 706
Oxygen Sensor
Sensor in robust and hygienic stainless steel design, high accuracy and low detection limit, simple and fast maintenance due to special membrane. Also digital, with Memosens technology.
Facts and Features
- high level of process safety
- durable materials
- robust design
- easy to clean thanks to extremely smooth surface
- cost-efficient service due to easy-to-replace membrane module and interior body
- hygienic design
- high resolution of 6 ppb
- operation also in hazardous locations
- VP screw cap
Memosens Sensors
perfect galvanic isolation thanks to Memosens technology
Knick
SE 715
Oxygen Sensor
Reasonably priced sensor for water and wastewater treatment applications. Designed for MemoRail applications.
Facts and Features
- perfect galvanic isolation thanks to Memosens technology
- no influence of humidity in the connector
- precalibration in the lab
- digital data transfer
- integrated sensor diagnostics
- high level of process safety
- low maintenance
- high long-term stability
- quick response behaviour
- low flow dependance
The SE 715 oxygen sensor with Memosens connector system requires low maintenance and is equipped with a temperature detector. It is characterized by its high long-term stability, fast response and low flow dependence.