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CI-ControlWave EFM Installation & Operation / 2-11
Optional Process Manifold Blocks: Process manifold blocks may be installed on the
transmitter to permit the use of connector assemblies having different connection centers.
The manifold blocks, which are oval in appearance, mate with the transmitter's process
flange. The blocks may be installed in several positions to achieve different connection
centers as shown in Figure 2-5.
MVT Interface Cable. An interface, connected to the top of the MVT, is factory connected to
Connector P2 near the bottom of the System Controller Module. This cable is keyed to
simplify installation.
2.3.1.2 Process Pipeline Connection (Meter Runs without Cathodic Protection)
ControlWave EFMs may be mounted directly on the pipeline or remotely on a vertical
stand-alone two-inch pipe or a wall. The Earth Ground Cable is to run between the
ControlWave EFM’s Ground Lug and Earth Ground (Rod or Bed) even though the
ControlWave EFM’s Multivariable Transducer (MVT) may be grounded to the pipeline. If
any pressure transmitters or pulse transducers are remotely mounted, connect their chassis
grounds to the pipeline or earth ground.
Mounting Bolts (4)
Bottom Washers (4)
Top Washers (4)
Dielectric Bolt Sleeves (4)
Dielectric Gasket
& Flange Seals (2)
Multivariable
Transducer
(MVT)
Valve Block
Manifold
Transducer to Manifold
Dielectric Isolation Kit
Ground Rod or System
AWG 4 Ground Wire
2” Pipe-mounting Package
Mounting Pipe does not
contact the Main Pipeline.
Note:
Figure 2-6 - ControlWave EFM
Direct Mount Installation with Cathodic Protection
Note: Direct Mount installation of a unit, without Cathodic protection, is similar
to that of Figure 2-6 except it doesn’t utilize the Transducer to Manifold
Dielectric Isolation Kit.
2.3.1.3 Process Pipeline Connection (Meter Runs with Cathodic Protection)
Dielectric isolators are available from Bristol Babcock and are always recommended as an
added measure in isolating the ControlWave EFM from the pipeline even though the
enclosure does provide some galvanic isolation from the pipeline and should not be affected