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Chapter 2: Installation
Installation Overview
Sierra’s InnovaMass Vortex Flow Meter installations are simple and straightforward. Both the
240i Inline and 241i Insertion type flow meter installations are covered in this chapter. After
reviewing the installation requirements given below, see page 14 for 240i installation instructions.
See page 16 for 241i installation instructions. Wiring instructions begin on page 23.
Flow Meter Installation Requirements
Before installing the flow meter, verify the installation site allows for these considerations:
1.
Line pressure and temperature will not exceed the flow meter rating.
2.
The location meets the required minimum number of pipe diameters upstream and
downstream of the sensor head as illustrated in Figure 1, page 14.
3.
Safe and convenient access with adequate overhead clearance for maintenance purposes.
4.
Verify that the cable entry into the instrument meets the specific standard required for
hazardous area installations. The cable entry device shall be of a certified flameproof
type, suitable for the conditions of use and correctly installed. The degree of protection
of at least IP66 to EN 60529 is only achieved if certified cable entries are used that are
suitable for the application and correctly installed. Unused apertures shall be closed with
suitable blanking elements.
5.
For remote installations, verify the supplied cable length is sufficient to connect the flow
meter sensor to the remote electronics.
Consult the flow meter nameplate for specific flow meter approvals before
any hazardous location installation.
Also, before installation check your flow system for anomalies such as:
leaks
valves or restrictions in the flow path that could create disturbances in the flow profile
that might cause unexpected flow rate indications
Unobstructed Flow Requirements
Select an installation site that will minimize possible distortion in the flow profile. Valves,
elbows, control valves and other piping components may cause flow disturbances. Check your
specific piping condition against the examples shown below. In order to achieve accurate and
repeatable performance install the flow meter using the recommended number of straight run pipe
diameters upstream and downstream of the sensor.
Note: For liquid applications in vertical pipes, avoid installing with flow in the downward
direction because the pipe may not be full at all points. Choose to install the meter with flow in
the upward direction if possible.
Summary of Contents for InnovaMass 240i Series
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