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Intended for the low conductivity applications found in the semi-conductor, power, water and pharmaceutical industries, these sensors are in a convenient compact style. There are several mounting possibilities one of which is mounting by a compression gland, giving a simple effective method of direct insertion in process pipework.

The sensors are made from a combination of wetted materials approved by FDA. This makes them ideally suited for the monitoring of pure water systems used in the preparation of injectable solutions and the like, for this kind of application, sanitary clamp mountings are used.

Precise individually calibrated cell constant.
Fast temperature response.
Built-in Pt 1000 RTD temperature sensor.
Fixed cable length 3, 5, 10, 15 or 20 meters.
Direct process insertion.
Wide range of mountings.
Compatible with PR4A retractably assembly.
The sensor is polished to meet pharmaceutical requirements


A modern trend in process control analyzers is to make the measurement with an on-line retractable sensor. Applications for the PR4A retractable fittings can be found in all processes where the sensor needs to be removed without interrupting continuity (e.g. anaerobic, toxic or pressurized systems). The Yokogawa design ensures the safe retraction of the sensor from the process without a shutdown.

Additional safety through a specially designed T-bar locking mechanism.
Adjustable insertion depth for optimal positioning in the process
Easy sensor maintenance.
Damped probe retraction by friction ring, for safety in pressurized systems.
Adaptable to most installations by a range of options.
Optional flush ports for cleaning or calibration purposes.
Compatible with Yokogawa sensor diagnostics.


Specification PDF SC4A Manual PDF
PR4A Manual PDF

North America  
YOKOGAWA


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