Operating Manual

Accu-Wave Chapter 3 Set up Level, Level Alarms, and Volume
TN Technologies 3-1
Chapter 3 Set up Level, Level Alarms, and Volume
When power is first applied, the Accu-Wave gauge will be configured to measure distance
with a maximum range of 112 ft (34.1 m). Until configured otherwise, the gauge
continuously measures and displays distance and signal strength, except when you are in a
menu.
Note: Allow 2 minutes after start up for the readings to stabilize.
The measurement display, shown in Figure 3.1, shows the distance to the strongest echo in
feet and the amplitude or signal strength (sig str) of the echo.
23.69 ft
114 sig str
For setup press→
Figure 3.1 Measurement Display
Press → to begin setting up the primary measurement. The gauge continuously makes
measurements, even while in the menu display. The primary measurement is distance by
default, but you can use the “Set up Level,...” menu to change to level, as described later
in this chapter.
Note: The appearance of the menu items as described in this manual will often
vary slightly from the actual menu item displayed on your gauge. The
appearance of many menu items (words and numbers) varies dynamically
with context and will depend on the parameter values and selections you
enter during setup.
Note: After you have configured the gauge and the configuration settings have
been saved, the gauge retains the configuration settings even when power
is turned off.
Typically the displayed distance will correspond to the echo from the surface of the
process material as desired, but in some cases the strongest echo will be from another
cause, such as:
− a multiple bounce from the process material and the top of the vessel. This
multiple bounce might cause a warning message, such as “signal saturated.”
− a multiple bounce from a nozzle obstruction.
− an echo from an obstruction within the vessel.
If it appears that the distance displayed on your gauge is incorrect, you can later use the
radar fine tuning tools (described in Chapter 5) to reduce the amplitude of the unwanted
echoes so that the system locks onto the correct echo. Before using these tools, you must
complete the setup for the primary measurement and define the correct range of interest, as
described in the next section.