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Mechanical Installation
January 2023
WARNING
FALLING AND CRUSHING HAZARD
Lifting a Rosemount Ultrasonic Meter with Other Equipment
The following lifting instructions are for installation and removal of the
Rosemount 3812 Liquid Ultrasonic Meter ONLY. The instructions below do not
address lifting the Rosemount Ultrasonic Meter while it is attached, bolted, or
welded to meter tubes, piping, or other fittings.
The operator must refer to their company's hoisting and rigging standards, or
the "DOE-STD-1090-2004 Hoisting and Rigging" standard if such company
standards do not exist, for lifting and maneuvering any assembled meter tube
and associated piping.
Using these instructions to maneuver the Rosemount Ultrasonic Meter while it is
still attached, bolted, or welded to a meter tube, piping, or other fitting can
result in death, serious injury or equipment damage.
WARNING
CRUSHING HAZARD
During meter installation or removal, always place the unit on a stable platform
or surface that supports its assembled weight. Provide support for the dual
transmitter electronics assemblies during installation and removal.
Failure to comply can cause the meter to roll and the electrical wiring conduit
connections to be severed, resulting in serious injury or equipment damage.
NOTICE
Prior to lifting the unit, refer to the Rosemount 3812 Liquid Ultrasonic Flow Meter
nameplate or outline dimensional (general arrangement) drawing for the
assembled weight.
When lifting a Rosemount Ultrasonic Meter by itself, Emerson recommends two
methods. These methods are:
•
Using appropriately rated Safety Engineered Swivel Hoist Rings installed in the
Rosemount Ultrasonic Meter end flanges.
•
Using appropriately rated lifting slings positioned at designated areas of the
Rosemount Ultrasonic Meter.
Both methods must be used in conjunction with all appropriate company hoisting
and rigging standards or the DOE-STD-1090-2004 HOISTING AND RIGGING
standard if such company standards do not exist. Refer to the following sections
for more information on these two methods.
2.4.1
Use of appropriate safety engineered swivel hoist
rings in meter end flanges
Rosemount Ultrasonic Meters come equipped with a tapped hole located on the
top of each meter body end flange. A flat machined surface surrounds each
tapped hole (see
between the meter flange and an OSHA compliant Safety Engineered Swivel Hoist
Ring as shown in
34
Figure
2-7). This feature provides complete surface contact ONLY
Figure
2-8.
Installation manual
00825-0100-3812
Rosemount 3812 Liquid Ultrasonic Flow Meter
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