Skip to main content

SE655 Toroidal Conductivity Sensor | Memosens | 7 m Fixed cable | Ex | PEEK | High chemical resistance

Description

SE655 Toroidal Conductivity Sensor | Memosens | 7 m Fixed cable | Ex | PEEK | High chemical resistance

Universal and precise conductivity sensor with high chemical resistance. Digital with Memosens protocol.

  • Process-wetted material: PEEK
  • Sturdy design
  • Resistant to contamination and fouling
  • Range of six decades
  • Steam sterilizable and CIP capable
  • Inductive measuring principle, full galvanic isolation of sensor coils from process medium 
  • Digital with Memosens protocol
  • Also for hazardous areas

The SE655N digital toroidal conductivity sensor is a sturdy and corrosion-resistant sensor that, thanks to its high chemical resistance, is particularly suitable for applications in the chemical industry.

A combination of a large sensor opening and dirt-repellent material prevents blockages and deposits in media with a high pollution degree. The inductive measuring principle enables full galvanic isolation of the measurement from the medium.

The sensor is an all-rounder, suitable for a multitude of applications with a range covering six decades. Equipped with Memosens protocol as a digital version, it offers considerable process and data security, and ensures reliable data recording. Also for hazardous areas (SE655X-GEFTT0AM).

Applications
Concentration measurement of acids and bases, online quality monitoring of chemical products in tanks and pipes, phase separation of product mixtures, paper manufacturing (high fiber concentration), heavily soiled media and wastewater, fouling and oil-contaminated media, brine, regeneration of ion exchangers.

We look forward to hearing from you!
Contact Us

Technical details

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)
Explosion protection: Ex
Process Connection: G 3/4" (36-mm nut and FKM (Viton) gasket included in shipment)
Measuring Range: 0 ... 2,000 mS/cm
Temperature Detector: Pt1000 (Class A in acc. with IEC 60751)
Measuring Principle: Inductive
Relative process pressure: 0 ... 20 bar (see pressure/temperature diagram)
Material: Cellule: PEEK; Joint: FKM (Viton)
Fixed cables with ferrules: 7 m
Protection: IP 68 (sensor mounted, with original gasket / EN 60529)
Temp. response time t90: Approx. 7 min
Ambient temperature: –20 ... +60 °C
Storage temperature: –20 ... 80 °C
Cell factor: 1.98/cm (≥30 mm wall clearance)
Signal Transmission: Memosens Protocol
Resolution: 0.002 μS/cm

Downloads

Manuals

[13989] User Manual
SE655(N/X-*) / SE656(N/X-*)
Digital Toroidal Conductivity Sensor

Brochures

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

Data Sheets

[16521] Data sheet
SE655(N/X) Toroidal Conductivity Sensor
Product Description | Specifications | Product Range

Certificates

[16734] EU Type-Examination Certificate / EU-Baumusterprüfbescheinigung
BVS 20 ATEX E 113 X | 2021-01-04
Types SE655X-GE**TO*M & SE656X-GE**WO*M
[17436] EU Declaration of Conformity
No. EU210607A | 2021-06-07
SE655X-GE**TO*M / SE656X-GE**WO*M
[11819] EU-Type Examination Certificate
No. DMT 01 ATEX E 088X | Supplement 3 | 2019-09-21
Electrodeless Sensor Model type SE 65*X-********
[16728] IECEx Certificate of Conformity
No.: IECEx BVS 20.0087X
Digital inductive conductivity sensor type SE655X-GE**T0*M and SE656X-GE**W0*M
[17553] Korean Safety Certificate
Ex ia IIC T4/T6 Ga / 23-KA4BO-0105X
SE65*X-GE***0*M
2023-02-21

Our service

Used in Process or Applications

The taste and quality of beer are highly dependent on the quality of the water used for brewing it. It is determined by pH and conductivity measurements.
Toxic sludge that must be treated for phosphorus recovery is produced in biological wastewater treatment plants.
Many measuring loops in pulp production are located in environments in which technical personnel must spend as little time as possible.

Related Products

Relevant Blog Posts

Stack and String Voltage Measurement in Electrolyzers and Fuel Cells

Voltage, current and temperature measurement in electrolyzers with P40000 series high voltage transducers

New 30 mV Shunt Resistors for Knick Transducers

Knick is expanding the accessory range for its high-voltage transducers with immediate effect by adding shunt resistors with a 30 mV voltage drop
Innovations at InnoTrans 2024

Innovations at InnoTrans 2024 for rolling stock and DC traction power supply

At InnoTrans 2024 Knick presents electrical measurement solutions for rolling stock and DC traction power supply applications

Knick Austria - direct customer contact in Austria from 2024

Reorganization of sales in Austria and new contacts in the field of process analytics and interface technology

Energy storage - the handshake between renewable energy and electric vehicles

Energy storage technology such as battery and hydrogen are critical for growth and continuous development of renewable energy and e-mobility.

P52000VPD voltage presence detector reliably detects voltages up to 4200 V DC

The new P52000VPD voltage presence detector reliably monitors areas with high voltages and sends a signal to the downstream plant control system when a specified threshold value is reached.

Knick Interface at Battery and Electric & Hybrid Vehicle Technology Expo

Knick will be showcasing high-voltage electrical measurement and signal conversion products.

Quadruple Standard Signals in Just One Signal Conditioner

The A20340 can output a standard input signal to four calibrated and galvanically isolated outputs in parallel.

Electrical measurement and process analytics for hydrogen production

Knick products optimize hydrogen production in the process and in electrolyser operation.

Condition Monitoring of High-Voltage Motors

Having an active predictive maintenance campaign in place for large rotating equipment can be a key strategy for maximizing process uptime.

Pulse frequency conditioner for speed sensors

The new P16000 from Knick is a pulse frequency conditioner that converts frequency signals from speed sensors into standard signals.

Worldwide smallest transducer up to ±2200 V

The P40000 series from Knick enables reliable voltage measurements from ±50 mV to ±3600 V and current measurements from ±100 mA to ±20 kA.

Importance of broad-range power supplies for DC electrical measurement

Many DC electrical measurement products manufactured by Knick contain universal, also known as broad-range, power supplies.

Measuring Photovoltaic Degradation

Photovoltaic (PV) array degradation is an important aspect to consider for system design and installation.

Electrical Measurement Solutions: Control from 480 to 4800 Volts

Voltage and current transducers from Knick bring true control to electrical measurement applications across a wide-range of industries.

Benefits of High Voltage Transducers versus Instrument Transformers

When a need arises to step voltage in a circuit either up or down for purposes of power transmission or distribution, there is no doubt that transformers are essential.

Shunt Resistor versus Hall Effect Technology

There are many systems where measurement of large DC currents are needed for performance and safety.

MTBF beyond 3000 years: A snap hook for your plant

Failure of equipment on the plant floor can lead to considerable and costly disruption.

Knick Products Comply With UL - What Does That Mean?

There are different assessments and approaches to reach an adequate level of safety. Manufacturers are typically on the “safe” side, if they comply with recognized standards.

High-voltage transducer offers more safety on railway vehicles

The requirements placed on railway vehicles have increased significantly in recent years. Products for rolling stock need to ensure a higher level of functional safety than ever before.

True RMS Measurement with P41000TRMS

Traditional millivolt AC transducers are very susceptible to errors due to their poor insulation and are only designed for pure sinewave measurement.

Functional safety and maximum availability can go together

The requirements on operational and safety-related circuits are continuously growing.