FCI MT86, Installation, Operation & Maintenance Manual

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MT86/MT86HT Flow Meter INSTALLATION
Fluid Components International LLC 5
1. Verify end hardware is loose if present. Carefully insert the flow element into the process mount. Align the flow element with the end
support if present.
2. Verify that the process media is in the same direction as the flow arrow on the reference flat that is near the local enclosure.
3. The threads are right-handed. Place pipe wrench on un-threaded portion of metal shaft. Rotate until snug and continue to turn until
the reference flat is parallel to the process flow. Apply even pressure so as not to disfigure the nipple.
Caution:
Do not apply any leverage to the local enclosure itself.
4. Tighten all connections. Tighten all end hardware if present.
Flanged Mount
1. Verify end hardware is loose if present. Carefully insert the flow element into the process mount. Align the flow element with the end
support if present.
2. Attach the process mating flange with care. Maintain the correct orientation of the flow element to ensure flow meter accuracy.
3. Verify that the flow arrow points in the same direction as the process media flow, and the flat is parallel to flow.
4. Apply the appropriate gasket and/or sealant to the flange mount faces as required.
5. Attach with a bolt, two flat washers, lock washer and nut for each bolt hole; apply lubricant/sealant to male threads and torque. For
correct hardware and torque, refer to ANSI B16.5 specifications.
6. Tighten all of the connections.
Refer to
APPENDIX A , page 35, for specific information.
Install Flow Transmitter
Caution: In applications where the flow element is located in an explosive environment, isolate the conduit before it leaves the
environment. A potting "Y" may be used to provide the isolation.
Note: FCI recommends installing an AC or DC power disconnect switch and fuse near the flow transmitter to interrupt
power during installation, maintenance, calibration, and troubleshooting procedures.
Remote Hardware
APPENDIX A , page 35, shows the remote enclosure along with physical dimensions to properly mount the flow transmitter. Select a
location for the flow transmitter within 1000 feet of the flow element. Allow enough room for the hardware to be easily accessible and to be
able to open the remote enclosure cabinet door at any time. Secure the flow transmitter solidly to a vertical surface capable of providing
support. Use the appropriate hardware to secure the flow transmitter as required.
Power Connection Information
Conduit Routing
All electrical connections are to be made through the 1 inch NPT opening in the remote enclosure. Run all electrical cables through an
appropriate conduit for the protection of the flow meter and personnel. See Figure 3 and Figure 4 , page 7, for the specific mechanical
details.
The flow transmitter design requires the power and output conduit to connect with the remote enclosure's left access port and the local
enclosure conduit to connect with the right access port(s).
Protection of the flow transmitter from moisture is important. Keep the entry of the conduit into the enclosures in the downward direction so
condensed moisture that collects in the conduit will not drain into the enclosure. The local enclosure may not be turned more than 180°
using the threads on the enclosure to gain an acceptable orientation. In addition, FCI recommends sealing off the conduit with a potting Y
or other sealing method to prevent moisture from entering the enclosures.
Minimum Wire Size
Table 1 below shows the smallest (maximum AWG number) copper wire which can be used in the electrical cables. Use a lower gauge of
wire for less of a voltage drop. Contact FCI concerning greater distances than those listed in the chart.