7088-8000
-133
Linearity
The ability of the flowmeter to establish a relationship
between actual flow and its output, often called the
characteristic curve of the flowmeter, to approximate a
straight line relationship.
Main Menu
The Main Menu is a display which allows the user to
scroll to various sub-menus (Section 3.3). The Main
Menu can be accessed by pressing
MENU
twice.
Manual zero set calibration
A zero set calibration method which applies a constant
offset entered by the user to all readings (Section 5.1.3).
Refer to Zero set calibration.
Menus (Primary Displays,
setup menus, diagnostic
menus, and print
commands)
The flowmeter uses Primary Displays, setup menus, and
diagnostic menus. Each of these has a unique two digit
menu address. Menus can be accessed using the numeric
keypad (Section 3.2) or the cursor (Section 3.3). In
addition, certain data may be printed using a two digit
print command.
Primary Displays are for viewing only and are not
configurable (Section 3.6.1).
Setup menus are used primarily to enter configuration
data or to view the flowmeter’s current configuration
settings (Section 3.6.2 through 3.6.12).
Diagnostic menus are for viewing various diagnostic
parameters and are not configurable (Section 3.6.13).
Certain print commands are available by pressing
MENU
plus 97, 98, or 99 (Section 3.6.14).
Minimum velocity
The lowest speed at which liquid can travel and still be
accurately measured.
National Electrical
Manufacturers
Association (NEMA)
North American standards agency that rates instrument
enclosures according to their application. The DCT-7088
meets NEMA-6.
Newtonian and
non-Newtonian liquids
A Newtonian liquid is one which has a linear relationship
between the applied shear stress and the rate of liquid
deformation (applies to most liquids in most
applications). Therefore, it is a liquid which has a
constant viscosity at a given temperature that is not
affected by the rate of shear.
A non-Newtonian liquid is one which has a non-linear
relationship between the applied shear stress and the rate
of liquid deformation. Some colloidal suspensions and
certain other liquid/solids mixtures are non-Newtonian.
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