Rosemount 397 TUpH pH Sensor

Name: Rosemount 397 TUpH pH Sensor
Price: 961.41 USD
Availability: BackOrder

Offers long life & high performance in pH & ORP measurements in aqueous solutions with high suspended solids.

Starting at $961.41

Effective April 15th, 2025 Rosemount has added a 6.4% surcharge for all of their products. The surcharge will appear as a separate line item on the order.

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Manufactured

By Rosemount

Includes

FREE Ground Shipping on orders of $1,000 or more
FREE Lifetime Tech Support

Availability

Usually ships in 3-5 weeks

Product Manual Product Specs

Features

32 to 212°F (0 to 100°C) temperature range
ACCUGLASS, GPHT: 0 to 14 pH range
0-100 psig (100-790 kPa abs) pressure range
pH glass formulation for maximum glass performance
Longer sensor life
Excellent performance with high solids content
Instrument compatibility
Quik-Loc Kit option

The Rosemount 397 TUpH pH sensor offers long life and high performance in pH measurments in aqueous solutions with high suspended solids. 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 large area, polypropylene reference junction for maximum resistance to process coatings that can be found in harsh, dirty, and high solid applications. In addition, the secondary helical reference pathway serves as added protection from poisoning ions.

Model 397 features ACCUGLASS and a large glass bulb that increases resistance to the effects of aging for a 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.

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 and 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). 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 hinders and slows down the rate of contaminants migrating to the reference element therefore providing for a longer sensor life.