SE655 Toroidal Conductivity Sensor | Fixed cable | PEEK | High chemical resistance
Product number:
SE655
Description
SE655 Toroidal Conductivity Sensor | Fixed cable | PEEK | High chemical resistance
Universal and precise sensor with high chemical resistance over a very large measuring range, for heavily polluted media.
- Sturdy design
- Extremely large measuring range due to inductive measuring principle
- Insensitive to contamination
- No process-wetted electrodes
- High chemical resistance (PEEK)
- Steam-sterilizable
- CIP-capable
Corrosion-resistant toroidal sensor for measuring pure water up to maximum conductivities. Smooth, easy-to-clean design. High accuracy due to electrodeless measurement. Low risk of contamination because of large sensor opening. Also for hazardous locations (SE655X).
Applications
Concentration measurement of acid and alkaline solutions, heavily polluted media, coating-forming and oil-containing media, salt spring, heavily polluted wastewaters, cooling water blowdown, concentrate monitoring, regeneration of ion exchangers
We look forward to hearing from you!
Contact Us
| Measurement Parameter: | Conductivity (inductive) |
|---|---|
| Measurement error: | ± (0.005 mS/cm + 0.5 % meas. value) | (- 20 ... 100 °C), ± (0.010 mS/cm + 0.5 % meas. value) | (> 100 °C) |
| Mounting: | G ¾" |
| Measuring Range: | 0 … 2,000 mS/cm |
| Explosion protection: | No |
| Process Connection: | G 3/4" (36-mm nut and FKM (Viton) gasket included in shipment) |
| Temperature: | -20 … 125 °C |
| Temperature Detector: | Pt100 (Class A) |
| Measuring principle: | Inductive |
| Pressure: | 0 … 20 bar |
| Material: | PEEK |
| Cable: | Fixed cable, 5 m |
| Protection: | IP 68 (when mounted) |
| Cell factor: | Approx. 2/cm (≥ 30 mm distance to wall) |
| Signal Transmission: | analog |
Downloads
Brochures
Data Sheets
Our service
Used in Process or Applications
Related Products
Skip product gallery
SE603 4-Electrode Conductivity Sensor | Fixed cable | Very high corrosion resistance
Product number:
SE603
SE605H 2-Electrode Conductivity Sensor | Memosens | Clamp | Ex | Hygienic design
Product number:
SE605H-XMSJ
SE620 2-Electrode Conductivity Sensor | VP | Pharma compliant hygienic design
Product number:
SE620/1
SE625 2-Electrode Conductivity Sensor | Memosens | Measuring range 0 … 1,000 μS/cm
Product number:
SE625-MS
SE630 Conductivity Sensor | 2 Graphite electrodes | Memosens | NPT 1 | Measurement of conductivities up to 20 mS/cm
Product number:
SE630N-N1MSYB0M
SE655 Toroidal Conductivity Sensor | Fixed cable | Ex | PEEK | High chemical resistance
Product number:
SE655X
SE655 Toroidal Conductivity Sensor | Fixed cable | PEEK | High chemical resistance
Product number:
SE655
SE655 Toroidal Conductivity Sensor | Memosens | 3 m Fixed cable | PEEK | High chemical resistance
Product number:
SE655N-GEFFT0AM
SE655 Toroidal Conductivity Sensor | Memosens | 7 m Fixed cable | Ex | PEEK | High chemical resistance
Product number:
SE655X-GEFTT0AM
SE655 Toroidal Conductivity Sensor | Memosens | 7 m Fixed cable | PEEK | High chemical resistance
Product number:
SE655N-GEFTT0AM
SE656 Toroidal Conductivity Sensor | Memosens | Fixed cable | Ex | PFA | Resistant to highly oxidizing media
Product number:
SE656X -GEFTW0KM
SE656 Toroidal Conductivity Sensor | Memosens | Fixed cable | PFA | Resistant to highly oxidizing media
Product number:
SE656N -GEFTW0KM
SE680 Digital Toroidal Conductivity Sensor | Clamp 2" | Ex | FDA-approved PEEK | Measuring range 0 … 2000 mS/cm
Product number:
SE680X-J2N4U00M
SE680 Digital Toroidal Conductivity Sensor | Clamp 2" | FDA-approved PEEK | Measuring range 0 … 2000 mS/cm
Product number:
SE680N-J2N4U00M
SE680 Digital Toroidal Conductivity Sensor | Dairy pipe DN 50 | Ex | FDA-approved PEEK | Measuring range 0 … 2000 mS/cm
Product number:
SE680X-C1N4U00M
SE680 Digital Toroidal Conductivity Sensor | Dairy pipe DN 50 | FDA-approved PEEK | Measuring range 0 … 2000 mS/cm
Product number:
SE680N-C1N4U00M
SE680 Digital Toroidal Conductivity Sensor | For ARD 75 | Ex | FDA-approved PEEK | Measuring range 0 … 2000 mS/cm
Product number:
SE680X-KUN4U00M
SE680 Digital Toroidal Conductivity Sensor | For ARD 75 | FDA-approved PEEK | Measuring range 0 … 2000 mS/cm
Product number:
SE680N-KUN4U00M
SE680 Digital Toroidal Conductivity Sensor | For ARF 210/215 | Ex | FDA-approved PEEK | Measuring range 0 … 2000 mS/cm
Product number:
SE680X-K8N4U00M
SE680 Digital Toroidal Conductivity Sensor | For ARF 210/215 | FDA-approved PEEK | Measuring range 0 … 2000 mS/cm
Product number:
SE680N-K8N4U00M
SE680 Digital Toroidal Conductivity Sensor | SMS 2" | Ex | FDA-approved PEEK | Measuring range 0 … 2000 mS/cm
Product number:
SE680X-M2N4U00M
SE680 Digital Toroidal Conductivity Sensor | SMS 2" | FDA-approved PEEK | Measuring range 0 … 2000 mS/cm
Product number:
SE680N-M2N4U00M
SE680 Digital Toroidal Conductivity Sensor | Varivent DN 50 | Ex | FDA-approved PEEK | Measuring range 0 … 2000 mS/cm
Product number:
SE680X-V1N4U00M
SE680 Digital Toroidal Conductivity Sensor | Varivent DN 50 | FDA-approved PEEK | Measuring range 0 … 2000 mS/cm
Product number:
SE680N-V1N4U00M
Relevant Blog Posts
Mar 2025
Process Analytics
SE605H Conductivity Sensor with CondCheck
The SE605H conductivity sensor with CondCheck enables USP 645 verification without interrupting the measuring chain.
Apr 2023
Process Analytics
pH and conductivity measurement in vaccine production
Pharmaceutical contract manufacturer relies on Knick's transmitters for modular production plants for Covid-19 vaccines.
Apr 2023
Process Analytics
Sturdy 2-Electrodes Conductivity Sensor SE625 with Coaxial Electrodes made of Titanium
The SE625 ensures reliable and accurate determination of the conductivity of ultrapure water in the semiconductor industry.
Nov 2021
Process Analytics
SE655X Digital and SE656X Digital - Digital Conductivity Sensors with Ex Certification
The SE655X digital and SE656X digital conductivity sensors with Memosens protocol are now also available with Ex certification.
May 2021
Process Analytics
New SE656N digital conductivity sensor
New toroidal Digital Conductivity Sensor with a large measuring range and consisting of PFA for using in aggressive media
Feb 2017
Process Analytics
High-Precision Conductivity Measurement at Extreme Temperature Differences
Pharmaceutical manufacturer, EVER Pharma Jena uses the extremely robust conductivity sensors SE605(H) and SE680 with Memosens technology from Knick.