Rosemount™ 389 General Purpose pH/ORP Sensor
The Rosemount 389 pH Sensor / ORP Sensor, with integral cable, is 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 sensor designs. The simplified construction, designed with user convenience in mind, does not require electrolyte (KCl) replenishment or any high maintenance troubleshooting procedures.
Temperature Range32 - 182 °F (0 - 85 °C)
Max. Operating Pressure100 psig (790 kPa) at 150 °F (65 °C)
Materials of ConstructionpH sensor body: Tefzel™
pH electrode: glass
ORP electrode: platinum
Junction: ceramic
O-Ring: Viton™
Process ConnectionFront- & rear-facing: 1 in (MNPT)