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SE558 pH Sensor | VP | 225 mm | Ex | For ultrapure water, water and analytical chemistry

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SE558 pH Sensor | VP | 225 mm | Ex | For ultrapure water, water and analytical chemistry
SE558 pH Sensor | VP | 225 mm | Ex | For ultrapure water, water and analytical chemistry
Length
Connector
Product number: SE558X/2-NVPN
Description Technical details Downloads Use cases

Description

SE558 pH Sensor | VP | 225 mm | Ex | For ultrapure water, water and analytical chemistry

For uncomplicated measurement in ultrapure water, water and analytical chemistry

  • Low maintenance, no refilling of electrolyte
  • Integrated temperature detector
  • 3 ceramic junctions
  • Independent of flow
  • KCl reservoir
  • Alpha glass, medium impedance, universal glass, fluoride resistant

Low-maintenance pH sensors with gel reference electrolyte. The SE558 sensor has an integrated temperature detector to allow automatic temperature compensation of the pH signal during calibration and operation.

The SE558 sensor is particularly suitable for use in media of very low conductivity. It provides 3 ceramic junctions and a KCl reservoir.

Applications
Boiler feed water, condensate, ultrapure water, water supply and distribution, WFI.

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Technical details

Measurement Parameter:
pH
Connector:
VP (VarioPin)
Measuring Range:
0 … 14 pH
Explosion protection:
Yes
Length:
225 mm
Process Connection:
PG 13.5
Temperature:
–5 … 100 °C (23 ... 212 °F)
Pressure, relative:
-1 … 3 bar
Temperature Detector:
Pt1000
Junction:
Ceramic (3×)
Reference System:
Ag/AgCl, gel electrolyte, salt reservoir
Sensor Material:
Alpha glass

Norms

Downloads

Manuals

[18238] User Manual
VarioPin(VP) Cable CA/VP6ST-***A-**
Version 02
[13189] Instructions for Use
SE558X/*-NMSN-B1 | SE558X/*-NVPN
Version 07

Brochures

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

Data Sheets

[105002] Data Sheet
SE558 pH Sensor
Product Description | Specifications | Product Range

Certificates

[18334] Manufacurer's Declaration | Herstellererklärung
(EC) No. 1907/2006 (REACH)
2025-10-01
[14412] EU Type-Examination Certificate (DE)
Nr. PTB 14 ATEX 2004 | 2018-11-26
Sensoren | Typen SE 5**X/*-*VP*, SE 5**X/*-*S8*
[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
[14407] EU Declaration of Conformity
No. EU210706H | 2021-07-06
Sensors | Types SE 5**X/*-*VP* + SE 5**X/*-*S8*

Safety guides

[11046] Material Safety Data Sheet
CaliMat buffer solution pH 9,00

Our service

Used in Process or Applications

Monitoring Steam Generators
Monitoring Steam Generators
Since steam generators fulfill application-critical functions and the cost of their downtime or replacement is extremely high, damage caused by wear should be prevented by monitoring water quality.
Reverse Osmosis Systems
Reverse Osmosis Systems
Reverse osmosis systems are used for water treatment in a wide range of industrial applications. The main application is industrial saltwater desalination.
Monitoring Brewing Processes
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.

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