396P + 396PVP Sensors Instruction Manual | Section 1: Description and Specifications |
LIQ_MAN_396P_396PVP | August 2013 |
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Section 1: Description and Specifications
1.1Features and Applications
TUpH™
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
The TUpH helical reference pathway stops reference poisoning. Ions diffuse through the reference pathways and a charge is passed to the reference element. The reference element must be protected from contamination by poisoning ions such as sulfide, mercury, cyanide, and ammonia or else the pH signal will drift. The TupH sensor's long internal helical reference pathway hinders and slows down the rate of contaminants migrating to the reference element therefore providing for a longer sensor life.
The entire line of TUpH model sensors now incorporate the new SILCORE™ technology contami- nant barrier. This
The AccuGLASS™ pH glass formulations exceed industry standards. The AccuGlass pH glass is a result of many years of glass research resulting in a formulation which has been found to increase the life of the sensor. Unlike other pH glasses presently on the market, this glass resists cracking especially at higher temperatures and reduces sodium ion error commonly found in high pH applications. Overall, the AccuGlass formulation enhances the sensor performance to measure pH more accurately and have a longer sensor life than ever before.
A choice of flat or hemi glass pH glass electrodes is available to best meet various application needs. Flat glass is advantageous in abrasive or coating applications that etch or build up on glass, respectively. In coating applications, such as slurries, the flat surface allows the process flow to act as a scrubbing agent to reduce coating and maintenance. In abrasive applications pitting from silicates and other similar materials is minimized by the flat glass surface to provide longer sensor life. Flat glass sensors are offered with a flat tip which is flush with the flat glass. The hemi bulb glass is ideal for general purpose use and for those processes requiring greater accuracy over the entire pH range. All hemi bulb sensors are offered with a standard shrouded tip which completely surrounds the glass bulb for protection against solids. An optional slotted tip is also available and
Description and Specifications | 1 |
