Sensia 3300 EFM, Installation, Operation & Maintenance Manual

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4. Connect the pressure port of the turbine meter to either manifold process port with tubing. The unused pressure port
can be used as a “vent” as required. Always leave the equalizer valves open to allow pressure to both sides of the
transducer. Use a suitable compound or tape on all threaded process connections.
CAUTION Do not use Teflon tape on the threads of the union, adapter, or pipe plugs that may be installed in
the enclosure.
5. A wiring diagram for the turbine input is provided in Figure 3.6, page 54 . Install the RTD assembly in the ther-
mowell. Route the RTD assembly to the MVT. A wiring diagram for the RTD assembly is provided in Figure 3.9,
page 56 .
6. Wire outputs or COM connections from the MVT to the inputs or COM connections on the back of the Scanner
3300.
7. Verify the zero offset (and other calibration points), if required.
CAUTION Do not put the MVT into operation until the valves are positioned properly so that pressure is sup-
plied to both sides of the transducer.
Installation Procedure—Remote Connection to a Turbine Meter
The Scanner 3300 can be directly connected to a gas turbine meter for measuring gas in accordance with AGA 7 calcula-
tions. Figure 2.15 shows an installation where the pressure is provided by an external transducer. The setup of the meter
run and plumbing configurations can vary widely, depending upon the challenges existing on location.
Flow
RTD assembly
10 pipe diameters
upstream (minimum)
5 pipe diameters
downstream (minimum)
External pressure transducer
(connected to meter
pressure port)
3/4” conduit
connection (for input/output
and communications)
Figure 2.15 - Remote-mount installation in an AGA 7 turbine meter run
To connect the Scanner 3300 to a turbine meter, perform the following steps:
1. Verify that the flowmeter and magnetic pickup are installed in the flow line.
2. Plug the cable connector into the magnetic pickup of the turbine meter and hand-tighten the knurled nut on the
connector.
CAUTION Do not use Teflon tape on the threads of the union, adapter, or pipe plugs. Use of
Teflon tape will void the explosion-proof rating of the instrument.
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Scanner 3300 EFM Section 2