Model 396P Retraction/Submersion/Insertion pH/ORP Sensor

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SILCORE™2 TECHNOLOGY PROVIDES INCREASED SENSOR LIFE when used in elevated temperature applications. QUICK CABLE-TO-SENSOR RELEASE, provided by the watertight VP multiple pin connector, eliminates cable twisting. MINIMUM SENSOR MAINTENANCE due to patented TUpH® reference technology which ensures steady pH signal when sensor is coated. MAXIMUM SENSOR LIFE due to helical reference pathway2 which hinders reference poisoning. FIELD PROVEN AccuGlass® pH glass formulations minimize glass cracking, resulting in enhanced performance and increased life. OPTIMUM VERSATILITY by providing various mounting options. PROVIDES ADVANCED SENSOR DIAGNOSTICS for pH and reference signals when used with Rosemount Analytical’s advanced analyzers.

FEATURES AND APPLICATIONS 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, (the entire plastic tip surrounding the glass pH electrode, see item #1 in diagram below), 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. 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 (see item #2 in diagram below) hinders and slows down the rate of contaminants migrating to the reference element therefore providing for a longer sensor life. 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 has a longer sensor life than ever before. The TUpH® reference junction and helical pathway combined with the AccuGlass® pH glass perform exceptionally well in dirty, high solid applications and require only minimum maintenance. This is the toughest pH sensor on the market and is still unmatched by all other pH sensors. The constant increase in demand for the TUpH® sensor proves its success as the best process industry pH sensor. All TUpH® sensor models have been 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. Both models can provide advanced sensor diagnostics due to the standard titanium solution ground, constructed in an annular design around the pH/ORP electrode. The solution ground provides diagnostics for preventative maintenance when used with the Models 54/54e pH/ORP Analyzer, 3081 pH/ORP Transmitter, and 4081 pH/ORP Transmitter. In addition, the Model 396P Sensor can be used with all other non-diagnostic Rosemount Analytical and other manufacturers’ instruments. A choice of flat or hemi glass pH glass electrodes is available to best meet various application needs. Flat glass (see item #4 in cross sectional diagram) 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 allows the process to flow by the glass electrode for accurate and reliable pH measurement. Both pH glass bulbs the standard hemi or optional flat pH glass are exceptional for increased resistance to high temperature and other effects of aging for longer life. A preamplifier converts the high impedance pH signal into a stable, noise-free signal and must be used with all pH sensors. A preamplifier can be built into the sensor, in a remote location, or integral to the analyzer/transmitter and has transmission capability of up to three miles. All TUpH® Sensors are compatible with all Rosemount Analytical and other manufacturers' instruments. AccuGlass® is a registered trademark of Rosemount Analytical, Inc. TUpH® is a registered trademark of Rosemount Analytical, Inc.