Emerson Rosemount 1152 Alphaline, Справочное руководство

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Reference Manual
00809-0100-4235, Rev BA
April 2007
Rosemount 1152
2-8
INSTALLATION
PROCEDURES
Installation consists of mounting the transmitter and conduit and making
electrical connections. Following are procedures for each operation.
Mechanical
Transmitter
The threaded interface between the sensor module and the electronics
housing is hermetically sealed before shipment. The integrity of this seal is
necessary for the safe operation of the transmitter during accident conditions.
If the seal is broken, reseal it according to Connecting Electrical Housing to
Sensor Module on page 5-7.
1. Mount the bracket to a panel or other flat surface (see Figure 2-2 on
page 2-5). Use four
5 /
16
in. diameter bolts (not supplied with unit). SAE
grade 2 bolts were used during qualification. Torque each bolt to 19
ft-lb (26 N-m).
For the pipe mounting option, assemble the bracket kit to a 2 in. pipe
(see Figure 2-2 on page 2-5). Torque each bolt to 19 ft-lb
(26 N-m).
2. Attach the transmitter to the mounting bracket (see Figure 2-2 on
page 2-5). Use the four
7 /
16
–20 × ¾ bolts with washers supplied with
the unit. Torque each bolt to 21 ft-lb (29 N–m).
Conduit
1. Seal the conduit threads with thread sealant (such as Grafoil
™
tape).
Conduit threads mate with a standard ½–14 NPT male fitting.
2. Starting at zero thread engagement, install the conduit into the
transmitter between 4 and 7 turns, or a minimum of 150 in-lb (16.9
N-m). Hold the electronics housing securely to avoid damaging the
threaded neck seal between the sensor module and the electronics
housing during conduit installation.
3. Provide separate support for the conduit if necessary.
Electrical
1. Remove the cover from the terminal side of the transmitter (see
Figure 2-1 on page 2-4).
2. Connect the power leads to the “SIGNAL” terminals on the transmitter
terminal block (see Figure 2-4 on page 2-7). Torque the terminal
screws to 5 in-lb (0.6 N-m) or hand tight.
Be careful not to break the neck seal between the sensor module and the electronics
housing.
Do not connect signal leads to the “TEST” terminals.