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Mounting
WBPEEUI110504A0
Refer to Figure
3-1
and Table
ing dimensions of the transmitter.
FLANGE ADAPTERS
The process connections of the transmitter process flanges
have ¼-18 NPT tapped holes. Optional ½-14 NPT process
flange adapters (football flanges) are available. The process
flange adapters allow the transmitter to be easily disconnected
from the process by removing the process flange adapter bolts
(Figs.
2-1
and 3-1). Refer to Tables
mation on the process flange adapters.
If supplied, the process flange adapters come from the factory
in a bag in the shipping carton. The process connection on
each adapter is slightly off center, so it is possible to install the
adapters so that the center-to-center distance of the process
connections is 54 millimeters (2-
(2 inches), or 57 millimeters (2-¼ inches). This is accom-
plished by rotating either one or both of the adapters
180 degrees. When installing the process flange adapters,
tighten the process flange adapter bolts to a torque of
47, ±2 Nm (35, ±2 ft-lbs).
NOTE: If the O-rings are PTFE, tighten to the same torque again
after five days . This is necessary due to the cold flow properties of
PTFE. Tests have shown that a loss of torque of as much as
40 percent occurs over the five days. After a second tightening, no
loss of torque is apparent.
MANIFOLDS
It is possible to mount Type PTSDD differential pressure
transmitters by means of a three-way carbon steel or stainless
steel manifold. The manifold connects directly to the cell in
place of the process flange adapter. Refer to Table
information.
If mounting near the measuring point, the pressure pipes sup-
port the manifold and transmitter. If not, use the optional
mounting bracket to mount the transmitter to a panel or 1.5 to
2.0-inch pipe. Refer to Tables
tion on the mounting bracket.
VENT/DRAIN PLUGS
Refer to Figures
2-1
and
vent/drain plugs. The purpose of the vent/drain feature is to
release residual pressure during startup and servicing (as a
bleeder valve) and to purge unwanted gas or liquid. This
applies to discharging (in gas applications) and venting (in
INSTALLATION
3-1
for the external and mount-
1-2
and
1-8
⁄
inches), 51 millimeters
1 8
1-2
and
1-8
for more informa-
3-1
for identification of the optional
SETUP AND PHYSICAL INSTALLATION
for more infor-
1-8
for more
3 - 3
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Table of Contents
Troubleshooting
