Filter
Top Products
2150EX Area Velocity Flow Module
Section 2 Preparation and Installation
2-2
2.2 Preparing for
Installation
A 2150EX flow system may be a portable installation, powered
by a 2191EX or 2196EX battery module (described in Section
2.4), or a permanent installation, powered from the safe area by
the 2194EX network interface module (described in Section 2.5).
WARNING
Intrinsic safety is dependent on proper installation in
accordance with IEC 60079-14 and IEC 60079-17
International Standards, or ATEX Group II, Category 1G or
2G requirements of the authority that has jurisdiction for
the installation of equipment in hazardous areas at your
specific installation site. Installation should be performed
only by trained and qualified personnel.
2.2.1 Safety
WARNING
Avoid hazardous practices! If you use these instruments in
any way not specified in this manual, the protection
provided by the instruments may be impaired; this will
increase your risk of injury.
WARNING
The installation and use of this product may subject you
to hazardous working conditions that can cause you
serious or fatal injuries. Take any necessary precautions
before entering a worksite. Install and operate this product
in accordance with all applicable safety and health
regulations, and local ordinances.
The 2150EX module components are often installed in confined
spaces. Some examples of confined spaces include manholes,
pipelines, digesters, and storage tanks. These spaces may become
hazardous environments that can prove fatal for those unpre-
pared. In the United States, these spaces are governed by OSHA
1910.146 and require a permit before entering.
Read the Safety section at the front of this manual, and the
general safety information in Appendix E.
2.2.2 Locating the Site The 2150EX is designed to measure flow in open channels with
or without a primary device. A primary device is a hydraulic
structure, such as a weir or a flume that modifies a channel so
there is a known relationship between the liquid level and the
flow rate. Although the 2150EX supports flow rate conversion in
channels with a primary device, its level and velocity mea-
surement capabilities are best suited for channels without a
primary device.