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

Section 2 Scanner ® 2000 microEFM
5. Install the RTD assembly in the thermowell. Remove the plug from a conduit opening in the top of the
Scanner 2000 enclosure, route the RTD assembly cable through the conduit opening and connect it to the
main circuit board. A wiring diagram for the RTD assembly is provided in Figure 3.5, page 64.
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.
Installation Procedure—Direct Mount to a Barton 7000 Series Turbine
Meter (ATEX Compliant)
A Scanner 2000 without the MVT bottomworks can be mounted directly to a Barton 7000 series turbine meter
for measuring liquid (Figure 2.13). A stainless steel turbine meter pickup extension supports the Scanner 2000
and provides the elevation necessary for good visibility of the display. An explosion-proof RTD is required for
the temperature input.
50
Turbine meter pickup
extension (ATEX-approved)
10 pipe diameters
upstream (minimum)
Flow
5 pipe diameters
downstream (minimum)
Figure 2.13—Direct-mount installation for use with a Barton 7000 Series meter
Model 21
explosion-proof RTD
assembly or equivalent
To connect the Scanner 2000 to a turbine meter using this method, perform the following steps:
1. Position the Scanner 2000 and pickup extension assembly above the flowmeter.
2. Plug the Scanner 2000 cable connector into the magnetic pickup of the turbine meter and hand-tighten the
knurled nut on the connector.
3. Screw the Scanner 2000/pickup extension assembly onto the flowmeter threads surrounding the magnetic
pickup with the display facing the desired direction, and tighten.
4. Install the RTD assembly in the thermowell. Remove the plug from a conduit opening in the top of the
Scanner 2000 enclosure, route the RTD assembly cable through the conduit opening and connect it to the
main circuit board. A wiring diagram for the RTD assembly is provided in Figure 3.5, page 64.