Yokogawa FU24F - Manual (Page 12)

IM 12B6J8-01E-E
12
Note: When the sensor has been connected to not intrinsically safe equipment which
exceeds the restrictions regarding the sensor input circuit (see electrical data), the
sensor is not suitable anymore for intrinsically safe use.
2.9 Shipping details
Package size (L x W x H) : 300 x 100 x 75 mm (11.8 x 3.9 x 3.0 inch)
Package weight : app. 0.33 kg (0.73 lbs)
2.10 Environment and operational conditions
Storage temperature : -10 ºC to 50 °C (14 ºF to 122 °F)
Sensor connection : Hot swapping possible
Water proof : IP67 (conform IEC 60529)
2.11 Mechanical specifications
Max. torque
on sensor body : 100 Nm
3. INSTALLATION OF FU24F
For optimum measurement results, the
FU24F should be installed in a location that
offers an acceptable representation of the
process fluid composition and does not
exceed the specifications of the sensor. The
FU24F is designed with 1” NPT threads on
either end of the body to allow installation in
a wide variety of applications.
3.1 Typical installation
The FU24F sensor can be installed in-line, in
a bypass loop or in an immersion assembly.
For best results the FU24F should be
mounted with the process fluid flowing
towards the sensor.
The sensor can also be mounted
horizontally or any other angle.
3.2 Mounting the sensor
The FU24F can be mounted using the
threads on the body of the sensor. Apply
Teflon tape to the appropriate threaded
end. Do not overtighten the sensor. When
using a (fork) wrench, the maximum
applicable torque is 100 Nm.
For mounting the sensor in a flow fitting
(FF20-*22, FF20-*33) or subassembly
(FS20-*22, FS20-*32), use spare part
K1521JA or K1521JB.
See Section 5 for instructions to wire the
sensor to the instrument.
3.3 Preparing the sensor for use
Remove the sensor from its shipping box
and slide off the “wet pocket” (the flask
including the rubber ring) This wet pocket
is filled with a saline solution to prevent the
sensor from drying out during storage.
Important: Inserting a sharp pointed device
in the hole in the measuring end of the
sensor, might damage the sensor and result
in severely reduced life time!
Before mounting the sensor, it should
be validated with buffer solutions and
calibrated when necessary. The specific
calibration procedure is described in the
Instruction Manual of the pH transmitter,
but a general procedure is also provided in
section 6 of this manual.