Hale CAFS Attack - Manual (Page 79)

Page 1
Installation Instructions For
EZ-View ® Flow Meter and
EZ-View ® Flow Alert Flow Meter
I. INTRODUCTION
The EZ-View series flow meter is a rugged, low-cost
direct reading industrial class flow meter that is simple
to install. It can be mounted (installed) in any position
from vertical to horizontal without costly flow straighten-
ers or other special plumbing. Constructed of high
impact polysulfone plastic, the EZ-View product line
offers excellent structural integrity and chemical com-
patibility with a wide range of industrial chemicals.
EZ-View flow meters provide instantaneous, direct-
reading flow rate measurement of liquids and gases in
closed piping systems. The transparent polysulfone
plastic body allows visual inspection of the fluid condi-
tion as well as viewing of the internal flow indicator rel-
ative to a calibrated flow scale. See Figure 1.
EZ-View meters do not required electrical connections
for operation, and provide measurement by creating a
predictable differential pressure across a sharp-edged
orifice that is located in the piston assembly.
II. OPERATING PRINCIPLE
The EZ-View series flow meter is a piston-type variable
area flow meter that uses a sharp-edged annular ori-
fice, formed between an open-centered piston and a
tapered metering cone. The piston is held in a “no-flow”
position at the base of the cone by a precision retention
spring. As flow in the pipe increases, the differential
pressure correspondingly increases across the piston
orifice, and moves the piston/flow indicator against the
spring. The greater the flow rate, the further the piston
moves along the tapered metering cone. The flow rate
is measured by viewing the red indicator ring, mounted
on the piston, relative to a graduated flow scale located
on the transparent flow meter body (see Figure 2).
2200 South Street • Racine • Wisconsin 53404
TEL 262-639-6770 • FAX 1-800-CHK-FLOW or 262-639-2267
HLIT 300
CAUTION
This product should be installed and serviced by tech-
nically qualified personnel trained in maintaining
industrial class flow instrumentation and processing
equipment.
CAUTION
Read instructions thoroughly before installing the unit.
If you have any questions regarding product installa-
tion or maintenance, call your local supplier for more
information.
Figure 1. EZ-View Flow Meter
Figure 2. Flow Rate Indicator
The unique design allows the EZ-View meter to be
mounted in any orientation—horizontal, vertical, upside
down, etc. without sacrificing measurement perform-
ance. Flow straighteners, located in the inlet and outlet,
allow the flow meter to be less sensitive to turbulent
flow conditions. Liquid measurements are provided in
GPM (Gallons Per Minute) and LPM (Liters Per
Minute). Compressed air/gas measurements are made
in SCFM (Standard Cubic Feet per Minute) and LPS
(Liters per Second).