Electrodes are delicate measuring instruments that require special care and handling to produce accurate results.
The lifespan of an electrode can be prolonged through regular calibration and cleaning (please see pH Calibration & Maintenance Kit for more information.)
However, an electrode does have a limited life span, in the same way that a battery does. (It’s a good idea to keep a spare on hand.) Symptoms of an aging electrode include sluggish and erratic readings.
Choosing a Replacement pH Electrode:
There are a number of criteria to be considered when choosing electrodes. Many different shapes, sizes and materials are available that will fit with any model of pH meter.
Top Selling pH Electrodes:
- pH Electrode X-YU-PH201MS
General purpose, plastic body, single junction, gel filled pH Electrode
Measures 1 – 13 pH at a temperature range of 0 to 80°C
Ideal for out-in-the-field or rugged applications
- pH Electrode X-YU-PH210g
General purpose, glass body, single annular ceramic reference junction
Measures 1 – 13 pH and has a temperature range of 0 – 100C
Suitable for general purpose, aqueous pH measurements
Quality control, general laboratory and aquarium water
- pH Electrode ECFG7379201B
General purpose, glass body, double junction electrode
Measures 0 – 13 pH and has a temperature range of 0 – 110C for high temperature measurements, reference contamination problems that require a double junction reference, such as media containing sulphides, bromides, iodides and cyanides
Specialty pH Electrodes:
- pH Spear
Specifically designed for measuring solid and semi-solid samples such as cheese, meat, fruit, bread or other similar samples
- Open pore electrode
Samples high in proteins, creams, fats and cosmetics
- High viscosity pH Electrode
Solutions such as emulsions, suspensions, paints and varnishes where frequent cleaning is necessary
- Soil pH Electrode
pH of soil
- pH and ORP (Oxygen Reduction Potential) Electrodes
These also judge how much oxidation or reduction takes place under existing conditions
Treatment of industrial wastes, study of biological systems, oxidation of cyanide, bleaching of pulp, manufacture of bleach and reduction of chromate wastes
Unsure which pH electrode to select?
If in doubt, send us an email enquiry and we will recommend the best electrode for your application – there may be a specialty electrode that is better suited to your application that you are not aware of.
Let us know:
- The make and model of your pH meter
- The substance you test
- The temperature at which you test
- Where you do the testing, in a lab or in the field