Bürkert PH Measuring System for Hygienic Applications

The Type 8201 pH measuring system is suitable for measuring absolute pH values in liquids between pH 0 and pH 12 at medium temperatures of up to 140°C and process pressures of max. 6 bar. Due to its hygienic design and the robust glass-free construction, this model is particularly suitable for use in hygienic processes. An example would be the production of foods and active ingredients, during which the pH value of liquid mediums (including those which are viscous or contain solids) is measured. The pH electrode's extremely smooth enamel surface prevents the medium from sticking and is very easy to clean in line. Due to its robust design and high temperature and chemical tolerance, the electrode stays in the process even during a CIP purification. This means that expensive retractable fittings can be dispensed with.

Sensor tube

Enamelled steel tube

Process connection

Stainless steel 1.4404

Electrode head

PVDF

Seal

EPDM

Electrolyte vessel

Stainless steel (1.4301)

Temperature sensor

Pt1000 integrated within the holder

Reference system

Aseptic ground (ceramic) diaphragm

Measuring chain zero point

8.65 ± 1 pH

Measuring chain isotherm point pH0

1.0 ± 1 pH; Uis = 440 mV

Suitable transmitter

Multi channel and multi function multiCELL transmitter/controller Type 8619

Measuring deviation

Max. ± 0.05 pH, depending on calibration

Repeatability

0.05 pH

Slope of measuring chain

56…59 mV/pH at 25 °C (77 °F)

Measurement chain potential

+ 600…- 400 mV

Inner resistance of measuring chain

109…1010 Ω at + 25 °C (77 °F)

HS Code

9027.80

• Burkert 8201
• Buerkert 8201
• Bürkert 8201
• Type 8201
• Burkert Type 8201