All-in-One pH/ORP Sensor FU20/PH20

The PH20 and FU20 all-in-one sensors show how Yokogawa applies the motto "Simple is best" to sensor technology. These sensors feature four separate elements (pH, reference, temperature, ORP) allowing for simultaneous measurement of pH and ORP is possible with one sensor in a rugged Ryton (FU20) or PVDF (PH20) body. The integral or vario-pin cable comes number-coded cable along with the integral NPT threads on the sensor makes installation convenient. The Quick Release Adapters for the FU20 allow easy removal of the sensor for cleaning and calibration. 

The PH20 is nicknamed "Tempress" because of the patented compensation for changes in the process temperature and pressure. This simple mechanical feature makes the sensor more accurate, and gives it a longer lifetime. The compensation panels flex to accommodate changes in the avoiding large differential pressures across the diaphragm. This prevents most problems associated with the reference junction. The PH20 is made in chemically resistant PVDF. The reference system is Silver/Silver Chloride, with a double junction and a gelled electrolyte to combat pollution. The Platinum Redox electrode doubles as a solution ground, essential for uncompromising accuracy, and for sensor diagnostic measurements.

The FU20 combination sensor shows how Yokogawa applies the motto "Simply the best" to sensor technology. The wide body sensors (26 mm diameter) hold four separate elements in one unbreakable PPS40GF (RytonTM) body. Installation is simple with the integrated industrial 3/4" tapered thread. The large volume gelled electrolyte and the double junction reference system slows down depletion and poisoning therefore extending the lifetime. The system is targeted at those applications where simplicity will result in accurate and reliable pH- or redox measurements. This means that in 90% of the know applications this sensor will be an excellent choice.

• Simultaneous pH- and ORP (REDOX) measurement

• Integral Pt1000 temperature element for enhanced accuracy

• Double junction and long diffusional path for reference pollution/poisoning resistance

• Extended life time by large volume of polymerized electrolyte and porous PTFE diaphragm

• Solid platinum pin solution ground and/or Redox measurement

• Simple maintenance by comprehensive design

• Direct in-line, immersion or off-line installation

• Calibration certificate delivered with each sensor

• Patented pressure compensation in the PH20

• Quick-Release adapter available for the FU20

WU10 Cable

The WU10 interconnection cable is specified for reliable transfer of analog signals between Variopin sensors and analyzer. It is especially designed to be installed in a heavy industrial environment. The cable has a wide temperature operation range which is sufficient for most of the applications. The materials used for the cable are flame retardant to resist the spread of fire.