Sierra InnovaMass 240i Series, Instruction Manual, Page: 15 / 115

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Figure 2. Flange-Style Flow Meter Installation
Flange-Style Flow Meter Installation
Install the flange-style meter between two conventional pipe flanges of the same nominal size as
the flow meter. If the process fluid is a liquid, make sure the meter is located where the pipe is
always full. This may require locating the meter at a low point in the piping system.
Vortex flow meters are not suitable for two-phase flows (i.e., liquid and gas
mixtures). For horizontal pipelines having a process temperature above 300°
F (149°C), mount the meter at a 45 or 90-degree angle to avoid overheating
the electronics enclosure.
When using toxic or corrosive gases, purge the line with inert gas for a
minimum of four hours at full gas flow before installing the flow meter.
When installing the meter make sure the body marked with a flow arrow is positioned with the arrow
head pointing in the direction of flow. Installing the meter opposite this direction will result in
completely inaccurate flow measurement. To install the meter:
1. Turn off the flow of process gas, liquid or steam. Verify that the line is not pressurized.
Confirm that the installation site meets the required minimum upstream and downstream
pipe diameters.
Shedder bar (bluff
body) is positioned
upstream of the
sensor
Note: Do not allow
any gasket
material to extend
into the flow profile