Instruction Manual

<4. Installation>
4-5
IM 01C27H01-01EN
F0408.ai
Ring
Diaphragm
Pressure-detector
section
Gasket
Mating flange
Spiral gasket
Figure 4.8 Mounting to Process Flange
IMPORTANT
• Conrm that there is no gap between the ring
and the process-detector section after they
are mounted on the process ange. A gap
can lead to a sudden, explosive release of
process uids.
• When mounting or removing the ring,
take care not to tilt the pressure detector
downward as the ring can slip off and cause
injury.
• When re-mounting the ring, use the new
spiral gasket as shown in below table.
Table 4.1 Spiral Gasket for Pressure Detector
Section Side*
Part number Size Description
F9350SV ø100×ø120×t4.5 For 3-inch ange
F9970XF ø100×ø120×t4.5 For 3-inch ange**
F9350ST ø70×ø90×t4.5 For 2-inch ange
F9970XD ø70×ø90×t4.5 For 2-inch ange**
F9346ZH ø60×ø75×t4.5 For 1 1/2-inch ange
F9970XB ø60×ø75×t4.5 For 1 1/2-inch ange**
*: Material; 316SST (Hoop), PTFE Teon (Filler)
**: For oil-prohibited use (Option code: /K1, /K5)
4.5 Afxing the Teon Film
The FEP Teon option includes a teon lm and
uorinated oil.
Before mounting the diaphragm seal to the process
ange, afx the teon lm as follows:
IMPORTANT
1) Position the diaphragm seal so that the
diaphragm is in a upward position.
2) Pour the uorinated oil on the diaphragm
and gasket area covering it completely
and evenly. Be careful not to scratch the
diaphragm or change the its shape.
3) Afx the teon lm over the diaphragm and
gasket area.
4) Next, carefully inspect the cover and try
to identify any entrapped air between
the diaphragm and the teon lm. The
air must be removed to ensure optimum
performance. If air pockets are present, use
your ngers to remove the air by starting at
the center of the diaphragm and work your
way out.
5) Position the gasket on the Teon lm.
6) Mount the transmitter onto the process
ange.
Teflon film
Diaphragm
Fluorinated oil
[PART No.: F9145YN]
Gasket area
Diaphragm seal
PART No.
F9347XA
F9347YA
Process flange size
For 3inch (80 mm)
For 2inch (50 mm)
F0409.ai
Figure 4.9 Afxing the Teon Film
4.6 Rotating Transmitter Section
WARNING
Intrinsic safe type transmitters must be, as a rule,
do not rotate transmitter section if it is powered.
In case you need to rotate when the transmitter
is powered, using gas detector and conrm no
existence of explosive gas before rotating.