Operating Manual

Glossary Accu-Wave
Glossary-2 TN Technologies
•
• Beamwidth Out
going microwaves spread
out approximately 15⋅
wide.
• Board A flat sheet on
which integrated circuits
are printed.
• Break point table
A table of 1-16 points
(distance or level) and the
corresponding volume of
the tank at that point.
• Cal Calibration.
• Cap Top of sensor.
Contains transceiver and
preamp assembly.
• Clear point The
reading at which the
alarm ceases.
• Clutter Clutter is one or
more false echoes from
the following: the sensor
itself, the isolation seal (if
present), or the tank
nozzle.
• Clutter distance
Defines the distance out
from the reference line
over which the gauge
should cancel the clutter
signal.
• CMD Command.
• Coaxial cable
Cable with a center
conductor surrounded by a
dielectric sheath and an
external conductor. Has
controlled impedance
characteristics that make
it valuable for data
transmission.
• COMM module
Communication module
for serial communications
with the gauge.
• Command code
A numeric code used in
direct entry to cause the
transmitter to execute a
command from the
keyboard instead of from
the menus.
• Compound shapes
Can be described as two
or more of the predefined
shapes.
• CPU Central
processing unit.
• Dead band The
range of readings between
the set and clear points.
• Decimal Point Position
Specifies the position of
the decimal point in the
measurement readout, for
example, 12.34 or 123.4.
• Dielectric A
nonconductor of direct
electrical current.
• Dielectric constant
Determine a material’s
ability to reflect
microwaves.
• Direct entry Use
keypad to directly access a
menu item or execute a
command without
scrolling through the
menus.
• Display mode
The gauge display is in
“normal” mode when it is
first turned on. It can be
set up to display normal
mode or alternate mode or
to toggle between the two.
• DSP Digital signal
processing
• DPT Dynamic process
tracking
• Echo Return
microwave signal.
• Echo #1 The echo that
appears to be reflected
from the farthest object.
• Echo qualification
When more than one echo
is received, the gauge uses
this process to determine
which one is reflected
from the process material.