Overview The Rosemount 389 sensors are housed in a molded Tefzel™ body with Viton™ o-rings, making each sensor virtually indestructible and chemically resistant. Complete encapsulation eliminates leakage or high humidity problems traditionally found in other pH/ORP designs. The simplified construction, designed with user convenience in mind does not require electrolyte (KCl) replenishment or any high maintenance troubleshooting procedures. Features A triple junction reference prolongs sensor life and protects against poisoning ions such as ammonia, chlorine, cyanides, and sulfides Enhanced performance and increased life with cracking resistant glass Available with a glass electrode option for high pH applications Superior chemical resistance provided by a rugged Tefzel body with Viton O-rings The molded sensor body features 1” MNPT front and rear facing process connections for insertion, submersion, and flow-through applications Variopol (VP6) cable connection option, for quick cable-to-sensor release, eliminates cable twisting SMART enabled for pH measurements Ordering Information Combination electrode: 10 - pH: general purpose low resistivity glass Made in Singapore/Mexico
