pHD™ Differential Electrode Measurement Technique.
This field-proven technique uses three electrodes instead of the two normally used in conventional pH sensors. Process and reference electrodes measure the pH differentially with respect to a third ground electrode. The end result is unsurpassed measurement accuracy, reduced reference junction potential, and elimination of sensor ground loops. These sensors provide greater reliability, resulting in less downtime and maintenance.
Convertible Body Style
Sanitary Body Style
1. Most pH applications fall in the 2.5-12.5 pH range. A GLI pHD™ Differential pH sensor with the wide-range glass process electrode performs exceptionally well in this range. Some industrial applications require accurate measurement and control below 2 or above 12 pH. In these special cases, please contact GLI for further details.
2. For best ORP measuring results in solutions containing zinc, cyanide, cadmium or nickel, GLI recommends using the pHD™ ORP sensor equipped with an optional gold electrode.
To learn more, contact IIS at 1-877-215-9090 or 732-815-9090.