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JUMO tecLine pH electrode with salt reserve (UW glass, PTFE ring diaphragm, S8 screw head Pg13.5, 120mm)

Article number: 800089
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Product information "JUMO tecLine pH electrode with salt reserve (UW glass, PTFE ring diaphragm, S8 screw head Pg13.5, 120mm)"

Thanks to the salt reservoir, this version is particularly suitable for applications with low-ion media or higher flow rates, where an extended electrode service life is beneficial.

JUMO tecLine pH electrode with salt reservoir, UW glass, PTFE ring diaphragm, S8 Pg13.5 screw head, 120 mm (Type code: 201020/51-18-04-22-120/837; Part No.: 321035)

This JUMO tecLine pH electrode is a good choice when a reliable and durable solution for pH measurement in aqueous media is required. With its salt reservoir design, this version is especially suitable for applications where the electrode is used under more demanding conditions and where maximum service life is required. Users looking for more than a standard pH electrode will benefit from a design focused on stable and long-term operation.

Advantages and special features

A key advantage of this electrode lies in the combination of UW glass, PTFE ring diaphragm, and salt reservoir. The UW glass supports reliable pH measurement, while the PTFE ring diaphragm provides a robust solution for more demanding measurement conditions. The salt reservoir is particularly beneficial in applications where higher requirements are placed on electrode lifetime. This makes the design especially attractive for users who value a robust and long-lasting electrode for regular measurement tasks.

Technical information

With the S8 Pg13.5 screw head and a 120 mm insertion length, the electrode is suitable for many common installation situations. The glass shaft design makes it a classic solution for precise pH measurements in appropriate applications. Its well-balanced construction allows easy integration into existing measurement setups.

Why choose this electrode?

Because it is particularly suitable when a pH electrode is not only required to measure reliably but also to maintain long-term stability and durability in continuous operation. The salt reservoir makes this electrode especially attractive for conditions where extended service life is important. Combined with the PTFE ring diaphragm, it results in a robust and high-quality solution for users requiring dependable routine measurements.

Applications

The electrode is used for pH measurement in aqueous media. It is suitable wherever precise pH monitoring is required and where a salt reservoir provides additional benefit. This makes it a strong choice for applications where reliability, service life, and clean integration into the measurement point are important.

  • Water treatment
  • Drinking water monitoring
  • Swimming pool technology
  • Process water
  • Surface water
  • General laboratory and industrial measurement tasks

Dimensions

Height 4,5 cm
Length 20,5 cm
Width 5,5 cm

Weight

Weight 140 g

Other attributes

Country of origin DE
Customs tariff number 90278930
Technical specifications
Active elements of the pH and redox electrode
Membrane glass or active element Designation pH and redox range Temperature range Typical applications
UW glass universal glass pH 0 ... 12
(briefly pH 14)
-5 ... +80 °C water and wastewater engineering,
process instrumentation,
low-ion media
HA-glass high-alkali glass pH 0 ... 14 -5 ... +80 °C In strongly alkaline media (above pH 12)
HT-glass high-temperature glass pH 0 ... 14 0 ... +135 °C At temperatures above 80 °C or
in strongly alkaline media
DS-glass steam-sterilisable glass pH 0 ... 12 -5 ... +80 °C
for short periods up to 130 °C (20 min)
biotechnology, pharmaceutical and food technology,
sterilisation processes
C-glass fluoride-resistant glass pH 0 ... 11 -5 ... +50 °C fluoride-containing (hydrofluoric acid-containing) media
c(HF) ≤ 1000 mg/l
platinum tip redox measurement ±2000 mV -10 ... +135 °C chromate reduction,
nitrite oxidation,
swimming pool and drinking water disinfection
gold tip redox measurement ±2000 mV -10 ... +135 °C cyanide oxidation,
water disinfection
Design variants of the reference system (reference electrode system)
Only silver-ion-free reference electrolytes are used in JUMO tecLine electrodes. A cartridge discharge system contains the silver/silver chloride (Ag/AgCl). Various diaphragm designs are used.
Diaphragm type Description Possible electrolytes Recommended minimum conductivity of the measuring medium Typical applications / limitations
1× Ceramic diaphragm High-quality zirconium dioxide diaphragma Polymerised solid electrolyte Without salt reservoir: 100 µS/cm
With salt reservoir: 50 µS/cm
General water and wastewater engineering,
industrial processes, etc.
liquid KCl (potassium chloride) 5 µS/cm
3× Ceramic diaphragm As above, with increased KCl outflow due to a higher number of outlets Polymerised solid electrolyte Without salt reservoir: 50 µS/cm
With salt reservoir: < 50 µS/cm
In contaminated or low-ion media;
low-temperature applications
liquid KCl (potassium chloride) 0,1 µS/cm
Glass fibre diaphragm Glass fibre bundle instead of a ceramic diaphragm for electrodes with a plastic shaft Polymerised solid electrolyte Without salt reservoir: 150 µS/cm
With salt reservoir: 100 µS/cm
General water and wastewater engineering
(slightly contaminated media)
PTFE ring diaphragm Large-area ring diaphragm Polymerised solid electrolyte Without salt reservoir: 100 µS/cm
With salt reservoir: 50 µS/cm
Only if it is very dirty or e. g. oily, sticky substances
Annular gap or perforated diaphragm Open interface between the solid electrolyte and the medium, arranged in a ring-shaped or point-shaped design Polymerised solid electrolyte Without salt reservoir: 500 µS/cm
With salt reservoir: 500 µS/cm
Suspensions, paints, media containing solids, heavily contaminated media;
not suitable for very pure drinking water or low-ion media

a High-quality ceramic material with consistent porosity, resulting in optimal diffusion properties.