Go to homepage
Show all categories Sensors Back

SE555 pH Sensor | Memosens | 425 mm | Ex | Sterilizable | For aggressive media

Skip image gallery
Measurement Parameter
Length
Connector
Product number: SE555X/4-NMSN
Description Technical details Downloads Use cases Blog posts

Description

SE555 pH Sensor | Memosens | 425 mm | Ex | Sterilizable | For aggressive media

Digital, sterilizable pH sensor providing high reliability and precision.

  • Gel electrolyte, pressurized
  • Ceramic junction
  • Silver ion trap
  • Integrated temperature detector
  • pH glass with high impedance for high-temperature applications, low alkali error
  • CIP/SIP-capable, safe sterilization with temperature monitoring
  • Perfect galvanic isolation thanks to Memosens technology
  • No influence of humidity in the connector
  • Precalibration in the lab
  • Digital data transfer
  • Integrated sensor diagnostics

The SE555 digital pH sensor comes with a special pH glass with high impedance for high-temperature applications and a low alkali error. The sensor is CIP- and SIP-capable. The silver ion trap prevents silver sulfide precipitation and junction fouling in media containing sulfides.

This makes the sensor ideal for routine applications in food processing and biotechnology. Additionally the Memosens technology offers all well known advantages concerning operation and sensor diagnostics.

Applications
Fermentation, food and beverages, aggressive media, extreme pH values

We look forward to hearing from you!
Contact Us

Technical details

Measurement Parameter: pH
Length: 425 mm
Connector: Memosens
Measuring Range: 0 … 14 pH
Explosion protection: Yes
Process Connection: PG 13.5
Temperature: 0 … 135 °C
Pressure, relative: -1 … 6 bar
Temperature Detector: NTC 30 kΩ
Junction: Ceramic (1x)
Reference System: Ag/AgCl with silver ion trap
pH Glass: Omega glass, high impedance, low alkali error
Electrolyte: Prepressurized gel electrolyte

Downloads

Manuals

[14165] User Manual (DE, EN)
ZU 1054 Sensor Protection (Sensorschutz)
[16286] User Manual (DE, EN, KO)
Memosens Cable CA/MS
Version 09
[12389] User Manual (DE, EN)
SE555X/*-AMSN | -NMSN | -NVPN | -NS8N
Version 04
[17424] User Manual (DE, JA)
SE555X/*-NMSN
incl. Ex Approval Japan (JPEx DEK19.0046X)

Brochures

[13209] Brochure
Memosens - The complete solution for smart sensor applications.
[13395] Brochure
Sensors - For measuring pH/ORP, conductivity or oxygen. Digital or analog.

Data Sheets

[2502] Data sheet
SE555X/*-NMSN(-LABS) Memosens pH Sensor
Product Description | Specifications | Product Range

Certificates

[12831] IECEx Certificate of Conformity
Memosens Ex Sensors | Details see Document
Document No. IECEx BVS 16.0030X, issue No. 2 | 2024-02-23
Marking: Ex ia IIC T3/T4/T6 Ga
[16262] Korean safety certificate Kosha (KO)
No. 2020-KA4BO-0355X
SE55*Xl*-NMSN, SE605H-XMS****
[12781] EU Declaration of Conformity (DE, EN, FR)
No. EU210706D | 2021-07-06
Memosens Measuring Cable Type CA/MS-...X.., CA/MS-...X..-L
[11064] EU Declaration of Conformity
No. EU210427A | 2021-04-27
Memosens Sensors | Types SE 5..X..-.MS., SE604X-MS**, SE605….., SE6**X**MS, SE7**…
[14685] Certificate of Conformity (FM)
No. FM17US0208X | 2019-05-27 | USA
Memosens Sensors | Types SE 5**, SE 6** and SE 7**
[14155] Declaration of Compliance 2.1 (DE, EN)
according to EN 10204 | gemäß EN 10204
[16639] Type Approval Certificate for Ex-Equipment (JA)
No. DEK19.0046X, Issue No. 0 (Japan)
SE5**X/*-*MSN | SE7**X/*-*MSN
[13263] Declaration of Conformity
Cytotoxicity of the Test Material "Electrolyte gel Rheolid" | 2010-08-02
SE 555X/.-NMSN
[12826] EU-Type Examination Certificate (DEKRA)
Nr. BVS 16 ATEX E 037 X | 2024-02-20
Memosens-Ex-Sensors
[16292] Korean safety certificate Kosha (KO)
No. 2020-KA4BO-0368X
Measuring Cable CA/MS
[14690] Certificate of Conformity (FM)
No. FM17CA0105X | 2019-05-27 | Canada
Memosens Sensors | Types SE 5**, SE 6** and SE 7**
[12113] Confirmation (DE, EN)
Kein tierischer Ursprung / No components of animal origin
Series SE 555X/*-*MS*, SE555X/*-*VP*, SE 555X/*-*S8

Safety guides

[11046] Material Safety Data Sheet
CaliMat buffer solution pH 9,00
[11044] Material Safety Data Sheet
CaliMat buffer solution pH 12,00
[11049] Material Safety Data Sheet
CaliMat buffer solution pH 2,00
[11045] Material Safety Data Sheet
CaliMat buffer solution pH 7,00
[11048] Material Safety Data Sheet
CaliMat buffer solution pH 4,00

Control Drawings

[14185] Control Drawing
Inductive Sensor-Cable Connection System Memosens
Zeichnungsnummer 214.410-240

Our service

Used in Process or Applications

Cooling Water Systems
Measurement of pH value, redox potential, and conductivity in cooling water, which has to be continuously treated with acid and biocides.
Monitoring Brewing Processes
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.
Monitoring Sugar Production
Sugar production places extreme requirements on pH sensors. As early as the beet washing phase, it is important to monitor the pH value since the lime is metered on the basis of the pH measurement.
Cooling Tower Monitoring
In a wide range of industrial sectors, cooling towers are used to dissipate process heat from cooling circuits. Mineral deposits and corrosion reduce their efficiency and lead to premature wear on plant parts.
Quality Control for Raw Milk Delivery
High quality requirements are placed on raw milk, and online monitoring of truck unloading procedure at the dairy prevents inferior quality (sour milk) from spoiling the entire stock of the storage tank.

Related Products

Skip product gallery
SE503 pH Sensor | VP | 120 mm | Polysulfone Body | For water and wastewater treatment
SE503 pH Sensor | VP | 120 mm | Polysulfone Body | For water and wastewater treatment
Product number:

SE503N/1-NVPN

SE515 pH Sensor | Memosens | 120 mm | Sigma glass | For water and wastewater treatment
SE515 pH Sensor | Memosens | 120 mm | Sigma glass | For water and wastewater treatment
Product number:

SE515/1-MS

SE547N pH Sensor | Memosens | 120 mm | CIP/SIP capable and autoclavable
SE547N pH Sensor | Memosens | 120 mm | CIP/SIP capable and autoclavable
Product number:

SE547N/1-NMSN-A2

SE547N pH Sensor | Memosens | 225 mm | CIP/SIP capable and autoclavable
SE547N pH Sensor | Memosens | 225 mm | CIP/SIP capable and autoclavable
Product number:

SE547N/2-NMSN-A2

SE554 pH Sensor | Memosens | 120 mm | Ex | For very high ionic strength media
SE554 pH Sensor | Memosens | 120 mm | Ex | For very high ionic strength media
Product number:

SE554X/1-NMSN

SE554 pH Sensor | Memosens | 225 mm | Ex | For very high ionic strength media
SE554 pH Sensor | Memosens | 225 mm | Ex | For very high ionic strength media
Product number:

SE554X/2-NMSN

SE554 pH Sensor | Memosens | 325 mm | Ex | For very high ionic strength media
SE554 pH Sensor | Memosens | 325 mm | Ex | For very high ionic strength media
Product number:

SE554X/3-NMSN

SE554 pH Sensor | Memosens | 425 mm | Ex | For very high ionic strength media
SE554 pH Sensor | Memosens | 425 mm | Ex | For very high ionic strength media
Product number:

SE554X/4-NMSN

SE554 pH Sensor | VP | 120 mm | Ex | For very high ionic strength media
SE554 pH Sensor | VP | 120 mm | Ex | For very high ionic strength media
Product number:

SE554X/1-NVPN

SE554 pH Sensor | VP | 225 mm | Ex | For very high ionic strength media
SE554 pH Sensor | VP | 225 mm | Ex | For very high ionic strength media
Product number:

SE554X/2-NVPN

Relevant Blog Posts

SE605H conductivity sensor with CondCheck: Integrated sockets for connecting a resistance decade

Mar 2025

Process Analytics

Pharma, Sensor, Conductivity

SE605H Conductivity Sensor with CondCheck
The SE605H conductivity sensor with CondCheck enables USP 645 verification without interrupting the measuring chain.
Knick’s large, international team at its ACHEMA 2024 trade fair booth.

Jul 2024

Process Analytics

Achema

ACHEMA 2024 - Review and Impressions
A brief cinematic retrospective of our trade fair booth, Knick’s international team, and a successful booth party.

Feb 2024

Process Analytics

Uniclean700, Launch

Uniclean 700 Series - Modular control system for automated sensor cleaning
With the Uniclean 700 series, Knick is introducing a modular control system, that can be installed very quickly and cost-effectively as a flexible entry-level solution for automated sensor cleaning.

Dec 2023

Company

|

Interface Technology

|

Process Analytics

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

Apr 2023

Process Analytics

Launch, Fitting, WA111

Robust WA111 Retractable Fitting Made of Plastic for Highly Corrosive Operating Conditions
The plastic WA111 retractable fitting is a robust and cost-effective solution for corrosive processes and environments. It is equipped with a secure lock function and multiple nozzles for thorough sensor cleaning.