Rosemount 148, Справочное руководство, Страница: 15 / 52

Reference Manual
00809-0100-4148, Rev BA
July 2010
2-3
Rosemount 148
Figure 2-2. Assembling Rail Clip
Hardware to a Rosemount 148
INSTALLATION The Rosemount 148 can be ordered assembled to a sensor with the XA
option code and thermowell or as a stand-alone unit. If ordered without the
sensor assembly, use the following guidelines when installing the transmitter
with an integral sensor assembly.
Typical European and
Asia Pacific Installation
Transmitter with DIN Plate Style Sensor
1. Attach the thermowell to the pipe or process container wall. Install
and tighten the thermowell before applying process pressure.
2. Assemble the transmitter to the sensor. Push the transmitter
mounting screws through the sensor mounting plate and insert the
snap rings (optional) into the transmitter mounting screw groove.
3. Wire the sensor to the transmitter (see Figure 2-4 on page 2-6).
4. Insert the transmitter-sensor assembly into the connection head.
Thread the transmitter mounting screw into the connection head
mounting holes. Assemble the extension to the connection head.
Insert the assembly into the thermowell.
5. Slip the shielded cable through the cable gland.
6. Attach a cable gland into the shielded cable.
7. Insert the shielded cable leads into the connection head through the
cable entry. Connect and tighten the cable gland.
8. Connect the shielded power cable leads to the transmitter power
terminals. Avoid contact with sensor leads and sensor connections.
(See “Ground the Transmitter” on page 2-8 for instructions on
grounding the shield wire.)
9. Install and tighten the connection head cover. Enclosure covers must
be fully engaged to meet explosion-proof requirements.
Transmitter
Mounting
Hardware
Rail Clip
A = Rosemount 148 Transmitter D = Transmitter Mounting Screws
B = Connection Head E = Integral Mount Sensor with Flying Leads
C = Thermowell F = Extension
A
D
B
C
E
F