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8
Orienting the Sensor
Figure 6 Eccentric reducer
• The gap between the electronics housing and sensor body should be inspected periodically. Manually
clean this gap when necessary.
• The ASME Bioprocess Equipment Standard (ASME BPE-1997), section SC-3.12.1, includes
recommendations regarding how to install process piping to ensure full drainability. In general, the
ASME BPE-1997 guideline recommends a minimum drop of ¼ in/ft (2 cm/m) of piping. The angle of
the process piping can have an impact on the reducer length in the sloping process line.
Flow direction arrow
The sensor has a flow direction arrow (see Figures 1–3) to help you configure the transmitter for flow
direction. If possible, install the sensor so that the flow direction arrow matches actual process flow.
Process end connection is the same size as
the sensor connection.
Eccentric reducer
Sensor housing
Note: As part of the cleaning process, skid-based systems may be purged with nitrogen at the end of
the cleaning cycle. When using eccentric reducers, it is possible to trap gas in the section of process
piping adjacent to the reducer. Sensor performance can be impacted by intermittent flow of the
captured gas in a liquid fluid stream.