Thermo Scientific Sarasota FD900, Руководство пользователя

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Installation
2-14
User Guide for Sarasota ID900, FD900, & PD900 Gas Density Meters Thermo Fisher Scientific
Electrical Considerations
Installing the
A full bore regulating/isolating valve should be fitted to both the inlet and
Bypass System
Electrical
Considerations
outlet sides of the density meter. The valves should be distances from the
meter, well insulated, and in good thermal contact with the pipe wall.
The meter is supplied with a filter which should be installed on the inlet
side to protect the spool from abrasion and contamination. If there is a
possibility of reverse flow through the meter, a filter should also be installed
on the outlet side. The filter(s) should have good thermal contact with the
pipe wall. Use of a thermal conducting paste is recommended.
The 1/4” to 1/2” piping used in the bypass should be thermally bonded to
the pipe wall and then the wall from the orifice plate to beyond the density
meter carefully lagged. The optional flexpak jacket can then be put around
the steam and pocket and fixed with self-sealing straps and ties. If the jacket
is not used, onsite insulation will be required instead.
Warning
Refer to the warnings at the beginning of this manual.
▲
Warning
Perform all site safety procedures prior to beginning electrical
installation.
▲
Note
The Sarasota RTR900 itself requires no electrical installation.
However, the instrument used with the Sarasota RTR900 must be installed
in accordance with its appropriate requirements.
▲
Note
Drawing AD_6502 in the drawing appendix provides wiring
diagrams for the Sarasota density meters.
▲
●
For Sarasota ID900 only: Electrical connections to a density meter used
in conjunction with a retractor must be made after the retractor has
been commissioned. The wiring is required to run to the instrument
connection box when the retractor is fully installed.
●
For Sarasota ID900 only: Provision must be made for the easy removal
of the electrical wiring to allow the retractor to be rotated when it is
used. If the electrical installation must be done before the retractor is
commissioned, allowance must be made for movement of the
instrument connection box.