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SE680 Digital Toroidal Conductivity Sensor | SMS 2" | FDA-approved PEEK | Measuring range 0 … 2000 mS/cm

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Explosion protection
Process Connection
Product number: SE680N-M2N4U00M
Description Technical details Downloads Use cases Blog posts

Description

SE680 Digital Toroidal Conductivity Sensor | SMS 2" | FDA-approved PEEK | Measuring range 0 … 2000 mS/cm

High-precision sensor made of FDA-approved PEEK with an extremely large measuring range. Steam-sterilizable.

  • Compact design
  • Competitively priced
  • Large measuring range
  • Quick-reacting temperature detector
  • Digital data transfer
  • Completely closed surface
  • Virgin PEEK, FDA type
  • Varivent with EHEDG

The joint- and gap-free, sealless design and stain-resistant surface made of Virgin PEEK make the SE680 a heavy-duty sensor. The inductive technology is not influenced by polarization and does not have any sensor surfaces subject to corrosion.

Applications
Fresh water technology, dairy products, breweries, soft drink manufacturing, electroplating, air-conditioning, CIP monitoring in the beverage industry, pharmaceutical applications, cooling tower monitoring, on-site wastewater treatment plants, monitoring concentrations of salt solutions, alkalis and acids, washers, and rinsing processes

High-Precision Conductivity Measurement at Extreme Temperature Differences

Feb 2017

Process Analytics

Conductivity

Pharmaceutical manufacturer, EVER Pharma Jena uses the extremely robust conductivity sensors SE605(H) and SE680 with Memosens technology from Knick.
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Technical details

Error: ± 1 % meas. val. + 0.002 mS/cm, ± 0.02 %/K
Measurement Parameter: Conductivity (inductive)
Explosion protection: non Ex
Process Connection: SMS 2"
Measuring Range: 0 … 2000 µS/cm
Temperature Detector: Pt1000
Measuring Principle: Inductive
Relative process pressure: -0.1 ... 10 bar (see pressure/temperature diagram)
Wetted materials: Virgin PEEK, FDA type
Response time: t90 < 30s
Cell factor: c ≈ 5.0/cm
Signal Transmission: digital
Non-wetted materials: PP-ESD
Electrical connection: M12 plug, 4-pin, Cable length max. 100 m
Sterilization: ≤ 5 bar / ≤ 150 °C / ≤ 60 min

Downloads

Manuals

[12413] User Manual
SE680 (N/X)
Version 08

Brochures

[13395] Brochure
Sensors - For measuring pH/ORP, conductivity or oxygen. Digital or analog.

Data Sheets

[2993] Data sheet
SE680 Toroidal Conductivity Sensor
Product Description | Specifications | Product Range

Certificates

[13847] Manufacurer's Declaration | Herstellererklärung
USP-Klassifizierung und der FDA-Konformität der Kunststoffe der Sensoren SE680N/* und SE680X/*
USP Classification and FDA Conformity of the Plastic Material in SE680N/* und SE680X/*
2025-03-18
[14511] EU Declaration of Conformity (DE, EN, FR)
No. EU240402B | 2024-04-02
Digital Sensors, non Ex
[16292] Korean safety certificate Kosha (KO)
No. 2020-KA4BO-0368X
Measuring Cable CA/MS

Our service

Used in Process or Applications

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Monitoring CIP/SIP processes
In pharmaceutical, biological or process systems for food production, all process-wetted system components must be cleaned and sterilized at regular intervals…
Brewery processes
The taste and quality of beer greatly depend on the quality of the water used to brew it. pH and conductivity measurements determine its quality. Globalization is putting massive competitive pressure…

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