pH Electrode for Beer Analysis


The FC214D is a titanium body, gel filled, single reference junction pH electrode. This electrode features high temperature glass and an extendable cloth type junction, along with a built-in temperature sensor and amplifier in a single probe design.This design consideration is ideal for measuring the pH of mash or wort during the beer making process. The FC214D is the replacement pH/temperature probe supplied with the HI99151 portable meter for beer.

•  High Temperature Glass
•  Titanium Body
•  Built-In Temperature Sensor

  The FC214D uses high temperature (HT) glass, spherical bulb, titanium body, and cloth junction with gel electrolyte.
High Temperature Glass Formulation
•  The measurement of pH at very high temperatures is detrimental to the sensitive glass bulb and will shorten the life of it.
•   A pH electrode with general purpose (GP) glass will have a resistance of 100 megaohms at 25°C while the resistance of HT glass is around 400 megaohms at 25°C.
•   As the FC214D is used at elevated temperatures, such as in the wort or mash, the resistance decreases and approaches the resistance of GP glass.
•  The FC214D is suitable to use with samples that measure from 0 to 80°C.

  Spherical Bulb
•  The spherical bulb is for general purpose use.
•  Other tip shapes include conic for penetration and flat tip for surface measurements.

  Titanium Body
•  A pH measurement is a very sensitive voltage measurement that is susceptible to interference from electrical noise and humidity.
•  To overcome these issues a titanium body serves as a matching pin.
•  A matching pin is a differential measurement technique used to eliminate electrical noise in the measurement system.
•  The titanium body, being made of metal, is virtually unbreakable and  offers additional protection from accidental breakage.

  Cloth Junction
•  Every pH electrode has a junction.
•  They can be made from a variety of material including ceramic, PTFE, and a fiber wick.
•  The fiber wick is also known as a cloth junction and is often used on electrodes with gelled electrolytes.
•  The advantage of the cloth junction is that it can be extracted from the probe exposing a fresh surface.
•  This is very important since one of the major contributors to unstable measurements is a clogged junction.
•  This is likely to occur when measuring the pH of mash that has a high solids content.
•  Having the ability to pull out a small portion (⅛”) of the junction will clear any clogging resulting in an increased life of the pH electrode.

  DIN Connector
•  The FC214D uses a DIN connector. This type of connector is proprietary to the meter they are to be used with.
•  The FC214D is the replacement electrode for the HI99151.
•  Other type of connectors include BNC, screw type, T-type, and 3.5mm.


    Body Material                          :  titanium with HT glass sensor
    Reference                                :  single, Ag/AgCl
    Junction / Flow Rate               :  cloth
    Electrolyte                               :  gel
    Range                                     :  pH: 0 to 13
    Max Pressure                           :  3.0 bar
    Tip Shape                               :  spheric (dia: 5 mm)
    Diameter                                 :  14 mm
    Body Length / Overall Length  :  105 mm / 145.5 mm
    Recommended Operating

Temperature                            :


0 to 80°C (32 to 176°F) – HT

    Temperature Sensor                :  yes
    Matching Pin                           :  no
    Amplifier                                 :  yes
    Digital                                     :  no
    Cable                                      :  7-pole; 1 m (3.3′)
    Connection                             :  DIN
    Applications                            :  beer, mash, wort
    Warranty                                 :  6 months

Order now

To make your order, please contact us at  info@polyscientific.com.my or call us at +6 06 3350 690

Go to Top