Yokogawa FU24 All-in-One pH/ORP Sensor - Manual (Page 10)

IM 12B6J3-03E-E
10
3. INSTALLATION OF FU24
For optimum measurement results, the FU24
should be installed in a location that offers
an acceptable representation of the process
composition and
DOES NOT exceed the
specifications of the sensor. The FU24 is
designed with 1” NPT threaded connections
on both ends of the sensor to allow
installation in a wide variety of applications.
3.1 Typical installation
The FU24 sensor is designed for versatile
in-line, immersion or off-line installation. For
best results the FU24 should be mounted
with the process flow coming towards the
sensor. The sensor can be mounted in all
angles with respect to the horizontal plane.
3.2 Preparing the sensor for use
Remove the sensor from its shipping box
and slide of the so-called ‘wet pocket’, the
tube filled with solution to prevent drying
out of the measuring elements during
shipment or storage. It is recommended
to calibrate the sensor before first use. A
general calibration procedure is described in
Section 6 of this Instruction Manual.
3.3 Mounting the sensor
The simplest mounting is to use one of
the 1” NPT threaded connection of the
sensor. Apply Teflon tape to the appropriate
threaded end, then install the sensor in the
process. Tighten the sensor using a wrench
on the sensor flats.
The FU24 can also be mounted in a FF20
flow fitting or put in the process by making
use of the FS20 subassembly. In both
cases this can be realized by using one of
the spare part adapters (see Section 8 for
ordering information).
1 Apply Teflon tape to the threaded end of
the sensor;
2 Install the sensor in the adapter. Tighten
the sensor using a wrench on the sensor
flats (see Figure 1 and 2).
Note: DO NOT over tighten the sensor
to prevent damage. The maximum
applicable torque is 100 Nm.
Figure 1. FS20 installation example FU24
K1521JA
FS20-S32-WE
O-ring