Yokogawa FU24 All-in-One pH/ORP Sensor - Manual (Page 6)

IM 12B6J3-03E-E
6
1. PREFACE
1.1 Introduction
This instruction manual provides
information for the installation and use of
the FU24 four-in-one wide body pH sensor,
which is especially designed for harsh
process applications.
The Model FU24 offers a simple and cost
effective solution for process applications
with fluctuating pressure and/or
temperature which normally limit the lifetime
of a sensor.
By using the patented Bellow system a
strong pressure compensation mechanism
is created. This ensures immediate interior
pressure equalization to the outside
process pressure, making the sensor
virtually insensitive to process pressure
variations.
A slight overpressure caused by the bellow
tension prevents process fluid ingress and
maintains a positive ion flow out of the
sensor. This feature is of particular interest
in pure water applications.
This all-in-one sensor provides
simultaneous measurement of pH, redox
(ORP) and temperature if desired. The
rugged PPS 40GF (Ryton™) body is
designed for easy installation via the 1”
NPT threaded connections provided on
both ends of the sensor.
The FU24 comes with an integral cable
of optional lengths designed to minimize
the adverse affects noise can have on the
measurement. This cable is pre-finished
to make connection to any industrial pH
instrument as simple as possible. The
FU24 can also include a multipole VP
connector and then requires separate cable
type WU10-V-S that is available in 5 fixed
lengths.
1.2 Unpacking and Checking
Upon delivery, unpack the sensor carefully
and inspect it to ensure it was not
damaged during shipment. If damage is
found, retain the original packing materials
and then immediately notify the carrier and
the relevant Yokogawa sales office. Make
sure the Model Code and Serial Number on
the sensor are the same as on the packing
list. Also, check any option(s) that were
ordered are included and correct.