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
Preamplifier cable: 02 - No preamplifier, 15-ft. (4,6 m) cable
Combination electrode: 10 - pH: general purpose low resistivity glass
Transmitter/thermocouple compatibility: 54 - For Rosemount 1054A/B, 81, and 2081, use -01 or -02. For Rosemount 56, 1056, 1057, 1066, and 5081, use codes -02, -07, and -08 only.
Optional: 62 - Cable without BNC for Rosemount 56, 1056, 1066, 1057, and 5081 (Codes -02, -07, -08, and -54 only)