pH Sensor - TUpH Insertion/Submersion/Flow Through (396)
The Model 396 Sensor is specifically designed for improved life in harsh, dirty, and abrasive applications such as lime slurry waste treatment, paper machine headbox and pigment/dye applications, where large quantities of suspended solids are present.
Data Sheet

pH Sensor - TUpH Varipol Connector (396VP)
The TUpH large area reference junction for minimum maintenance requirements: The reference junction provides an electrical connection between the reference electrode and the sample, and helps maintain a stable reference potential, regardless of the change in sample pH. The TUpH reference electrode junction, the entire plastic tip surrounding the glass pH electrode, maintains a steady reference signal even in the dirtiest of applications because it resists plugging (a common cause of pH signal drift). This large reference junction area is made of micron sized reference pathways used for ionic exchange so it resists plugging by large particles and will continue to send a steady pH signal, even in the dirtiest of applications. The TUpH reference junction technology has been field-proven for minimum maintenance requirements.
Data Sheet

pH Sensor - TUpH TUpHFET Non-glass IsFET (TF396)
The ion-selective field effect transistor (ISFET) pH electrode provides a stable pH measurement. Its rate of response can be ten times faster than glass electrodes, enabling better process control. Its short response time and increased stability at low temperatures make it suitable for use in cold processes like brine or water for cooling. Aging effects caused by temperature fluctuations or large changes of process pH are greatly reduced, providing longer intervals between calibration and maintenance of the sensor. Because there is no glass bulb, it can be used in many applications that restrict or prohibit pH glass electrodes due to the risk of broken glass getting into the process. It may also provide longer sensor life in processes that will break or crack pH glass bulbs. By allowing direct installation into the process, costs for laboratory analysis of sample lines are greatly reduced.
Data Sheet

pH/ORP Sensor - TUpH (398)
The chemical-resistant construction of Tefzel, titanium, and the patented TUpH reference junction makes Models 398 and 398R the ideal sensors for measuring pH in harsh process liquids. Use Models 398 and 398R to measure pH in sour water strippers, in pulp bleaching towers that use chlorine dioxide, and in process streams containing a variety of organic solvents.
Data Sheet

pH/ORP Sensor - TUpH for Quik-loc Kit (397)
The low maintenance Model 397 pH sensor offers long life and high performance in the measurement of pH in aqueous solutions with high suspended solids. The Model 397 is housed in a highly chemical resistant polypropylene body and is completely sealed with EP (ethylene propylene) to eliminate process intrusion. This TUpH sensor features a patented, large area, polypropylene reference junction¹ for maximum resistance to process coatings, generally found in harsh, dirty and high solid applications. In addition, the patented secondary helical reference pathway² serves as added protection from poisoning ions. The Model 397 features AccuGlass™³ and a large glass bulb for increased resistance to the effects of aging for longer life. The sensor is specifically designed for use with the Quik-Loc Kit and is only available without an integral preamp. The preamplifier must be in a remote location or integral to the analyzer/transmitter.
Data Sheet

pH/ORP Sensor - TUpH Retractable (396R)
The Model 396R Sensor is specifically designed for improved life in harsh, dirty applications where a separate sample stream is difficult to provide and greater insertion depths are required. It is designed for use with a 1-1/4 in. or 1-1/2 in ball valve for tap installation.
Data Sheet

pH/ORP Sensor - TUpH Retractable (398R)
The chemical-resistant construction of Tefzel, titanium, and the patented TUpH reference junction makes Models 398 and 398R the ideal sensors for measuring pH in harsh process liquids. Use Models 398 and 398R to measure pH in sour water strippers, in pulp bleaching towers that use chlorine dioxide, and in process streams containing a variety of organic solvents.
Data Sheet

pH/ORP Sensor - TUpH Retractable Varipol Connector (396RVP)
The TUpH large area reference junction for minimum maintenance requirements: The reference junction provides an electrical connection between the reference electrode and the sample, and helps maintain a stable reference potential, regardless of the change in sample pH. The TUpH reference electrode junction, the entire plastic tip surrounding the glass pH electrode, maintains a steady reference signal even in the dirtiest of applications because it resists plugging (a common cause of pH signal drift). This large reference junction area is made of micron sized reference pathways used for ionic exchange so it resists plugging by large particles and will continue to send a steady pH signal, even in the dirtiest of applications. The TUpH reference junction technology has been field-proven for minimum maintenance requirements.
Data Sheet

pH/ORP Sensor - TUpH Retractable Varipol Connector (398RVP)
The TUpH large area reference junction for minimum maintenance requirements: The reference junction provides an electrical connection between the reference electrode and the sample, and helps maintain a stable reference potential, regardless of the change in sample pH. The TUpH reference electrode junction, the entire plastic tip surrounding the glass pH electrode, maintains a steady reference signal even in the dirtiest of applications because it resists plugging (a common cause of pH signal drift). This large reference junction area is made of micron sized reference pathways used for ionic exchange so it resists plugging by large particles and will continue to send a steady pH signal, even in the dirtiest of applications. The TUpH reference junction technology has been field-proven for minimum maintenance requirements.
Data Sheet

pH/ORP Sensor - TUpH Varipol Connector (396PVP)
The TUpH Reference Technology includes a large area reference junction for minimum maintenance requirements: The reference junction provides an electrical connection between the reference electrode and the sample, and helps maintain a stable reference potential, regardless of the change in sample pH. The TUpH reference electrode junction, maintains a steady reference signal even in the dirtiest of applications because it resists plugging (a common cause of pH signal drift). This large reference junction area is made of micron sized reference pathways used for ionic exchange so it resists plugging by large particles and will continue to send a steady pH signal, even in the dirtiest of applications. The TUpH reference junction technology has been field-proven for minimum maintenance requirements.
Data Sheet

pH/ORP Sensor - TUpH with Varipol Connector (398VP)
The TUpH large area reference junction for minimum maintenance requirements: The reference junction provides an electrical connection between the reference electrode and the sample, and helps maintain a stable reference potential, regardless of the change in sample pH. The TUpH reference electrode junction, the entire plastic tip surrounding the glass pH electrode, maintains a steady reference signal even in the dirtiest of applications because it resists plugging (a common cause of pH signal drift). This large reference junction area is made of micron sized reference pathways used for ionic exchange so it resists plugging by large particles and will continue to send a steady pH signal, even in the dirtiest of applications. The TUpH reference junction technology has been field-proven for minimum maintenance requirements.
Data Sheet