Chapter 3. Installing the Transducer Assemblies
54
T5 Flare Gas Transducer Installation Guide
3.8 Inserting the Tilted 45 Transducer into the Pipe (cont.)
6.
Install the second insertion mechanism by repeating the steps in the previous sections. Confirm that the
downstream transducer assembly is in the downstream port and the upstream transducer assembly is in the
upstream port.
Note:
The following steps apply to both the upstream and downstream assemblies equally.
7.
Place a tag on each isolation valve stating the following:
DO NOT OPERATE (CLOSE) WHEN
TRANSDUCER IS INSERTED INTO PIPE.
8.
Refer to your flowmeter
Startup Guide
to make the transducer electrical connections.
3.9 Connecting an XAMP
This section explains how to correctly install and assemble an
XAMP
into a transducer junction box. It applies to all
three possible junction box options (see drawing #752-063 in
), but only one of the junction box
options is used as an example in the steps below.
1.
Place a 3/4” NPT compression fitting on the stem of the transducer closest to the BNC connector.
2.
Torque the fitting into one of the 3/4” NPT ports of the junction box with at least 5 threads engaged. After the
fitting is torqued into place, ensure that the BNC head of the transducer extends slightly past the ground screw
bosses, as shown in
below:
Figure 16: Torquing the NPT Reducer
3.
If the BNC head extends too far into the junction box, it will make the assembly more difficult to install by
reducing the amount of area needed to properly store the excess cable. If the BNC head is not positioned
approximately where it is pictured in
above, loosen the compression fitting and adjust the transducer.
Then, re-tighten the compression fitting.
