Scanner 2000 Steam Mass Flow Transmitter ... - Spirax Sarco

Section 2 Scanner ® 2000 microEFM
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b. Position the manifold so that all valves are accessible from the front of the instrument.
4. Install tubing and fittings to connect the Scanner 2000 and manifold assembly to the differential pressure
meter, sloping the gauge lines downward to the meter at a minimum of one inch per foot. Use a suitable
compound or tape on all threaded process connections.
5. Install the explosion-proof Barton Model 21 RTD assembly in the thermowell. Route the RTD assembly
cable through the conduit opening in the top of the Scanner 2000 to connect to the main circuit board.
(If the Barton Model 21 series is not used and the Scanner 2000 is in a hazardous area, a Barton Model
20 RTD terminal housing or similar alternative must be used. In this case, the RTD signal cable must be
routed through conduit and a conduit seal must be installed within 18 in. of the Scanner 2000. A wiring
diagram for the RTD assembly is provided in Figure 3.5, page 64.
6. Route any additional inputs/outputs or COM connections, etc. through the conduit opening in the top of
the Scanner 2000. In hazardous environments, add a conduit seal within 18 in. of the Scanner 2000.
7. Perform a manifold leak test as described on page 52.
8. Verify the zero offset, if required (and other calibration points, if desired). See the ModWorX Pro Software
User Manual, Part No. 9A-30165025, for complete instructions. See also Zero Offset (Static Pressure
or Differential Pressure), page 53, Static Pressure Calibration and Verification, page 53, and Differential
Pressure Calibration and Verification, page 54.
CAUTION Do not put the Scanner into operation until the valves are positioned properly so that
pressure is supplied to both sides of the MVT. For instructions on proper valve positions,
see Placing the Scanner into Operation, page 55.