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

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Technical details

Connector:	Memosens

Downloads

Manuals

[14165] User Manual | Betriebsanleitung

ZU1054 Sensor Protection | Sensorschutz

Version 01

[16286] User Manual (DE, EN, KO)

Memosens Cable CA/MS

Version 09

[12389] User Manual

SE555X/*-AMSN | -NMSN | -NVPN | -NS8N

Version 06

Brochures

[13395] Brochure

Sensors - For measuring pH/ORP, conductivity or oxygen. Digital or analog.

Certificates

[13263] Manufacturer's Declaration,

Cytotoxity of the sensors SE555X/*-NMSN* and SE555X/*-AMSN* series

2025-03-21

[18254] Manufacurer's Declaration

Confirmation of the Compatibility of Digital Sensors from Our Company

Identifier: -B1

[12781] EU Declaration of Conformity (DE, EN, FR)

No. EU210706D | 2021-07-06

Memosens Measuring Cable Type CA/MS-...X.., CA/MS-...X..-L

[18270] Certitficate of Conformity (China - Ex NEPSI)

Cert No. GYJ24.1052X

SE5aa X/b-*MS*-B1

2024-04-03

[18286] Certificate of Conformity (FM)

No. FM23CA0070X | 2024-04-16 | Canada

Memosens Sensors | Types SE 5**X/*-*MS*-B1 (pH/ORP)

[14155] Declaration of Compliance 2.1 (DE, EN)

according to EN 10204 | gemäß EN 10204

O-Ringe aus EPDM oder Silikon | O-rings made of EPDM or Silicone

[12826] EU-Type Examination Certificate (DEKRA)

Nr. BVS 16 ATEX E 037 X | 2024-02-20

Memosens-Ex-Sensors

[12113] Confirmation (DE, EN)

Kein tierischer Ursprung / No components of animal origin (TSE/BSE)

SE555X/*-NMSN* and SE555X/*AMSN

[18262] EU Declaration of Conformity (DE, EN, FR)

Sensors Types SE5**X/*-*MS*-*B1

EU230912A | 2025-04-30

[18278] Certificate of Conformity (FM)

No. FM23US0105X | 2024-04-16 | USA

Memosens Sensors | Types SE 5**X/*-*MS*-B1 (pH/ORP)

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

[18302] Control Drawing

Memosens pH Sensors Type SE5**X/*−*MS*−B1

Zeichnungsnummer 213.215-066 page 1b rev.1

ATEX, IECEx

Used in Process or Applications

Cooling water systems

Cooling towers are used in a range of industrial sectors for diverting process heat from cooling circuits. Mineral deposits and corrosion reduce efficiency and lead to the premature wear of system components.

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…

Monitoring sugar production

pH sensors are subject to extreme requirements during sugar production. Lime is dosed based on pH measurement right from the start...

Monitoring cooling towers

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.