Operating Manual

Accu-Wave Glossary
TN Technologies Glossary-3
• Entry ID
Identifies a menu
item for direct entry.
• Esters Any of a class of
often fragrant compounds
that can be represented by
the formula RCOOR’ and
that are usually formed by
the reaction between an
acid and an alcohol with
elimination of water. For
example: acetate.
• False echo Echo
reflected from any surface
other than the surface of
the process material. For
example, echoes reflected
off of baffle support
brackets or the bottom of
the tank.
• False signal
Any signal (echo)
reflected from any surface
other than the surface of
the process material. For
example, microwaves
reflected off of baffle
support brackets or the
bottom of the tank.
• Fault A hardware or
software condition that
causes a device, a
component, or an element
to fail to perform in a
required manner
• Fault alarm Notifies
you of level signal lost or
system fault (others are
also available). A line on
the display flashes off and
on.
• GA Gauge, thickness
of wire.
• Gauge Combined sensor
and transmitter.
• Good echo Values
are inside the signal
window.
• HELP Information in
the menu to explain a
particular item.
• HEX Hexadecimal.
• Hidden keys
Unmarked keys located
around the keypad on the
transmitter which can be
programmed by the user.
Also called blank keys.
• High alarm The
clear point is less than the
set point.
• Hz Hertz (cycles per
second)
• I/O Input and output
• Intrusive mounting
The antenna extends
downward into the tank
nozzle.
• Isolation mounting
The antenna is mounted
outside the tank and
separated from the process
material by a seal.
• Item identifier
Identifies an item for
direct entry.
• Keyboard code
A menu item identifier
used in direct entry.
• Keypad Used to enter
commands and data and
to scroll through items,
options and menus.
• Linearity The
closeness to which a curve
approximates a straight
line.
• Lost signal alarm
For some reason, the
sensor is not detecting a
strong enough microwave
reflection to make a
measurement. Minimum
acceptable signal strength
and action to take if the
signal is lost are
programmed by the
customer.
• Low alarm The
clear point is greater than
the set point.
• Marker Indicates an
event.