BANDELIN SONOPULS HD 4200-SB, Руководство по эксплуатации

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3.2.3 Miscellaneous functions and settings
Additional functions are available within a second menu level. These can be accessed by
simultaneously pressing the “SET” key and arrow key. Switching between these functions
is accomplished with the “SET” key in the manner already described. The menu level can
only be exited by pressing the “START/STOP” key. In doing so, settings and function statuses
are carried over and executed.
probe check off
scan frequency off
contrast 22
operating mode
Power
display Energy
batch mode
off
03.01 - 2016-08-085
off
Check the ultrasonic converter
Search resonance frequency
Set monitor contrast
Set type of ultrasound control
Check the ultrasonic converter [probe check]
This function is used for quick veri fi cation of whether the ultrasonic converter is recognised
and can be correctly activated by the ultrasound generator. After a change in sieve or operating
conditions, it may be possible (for example) that the ultrasound generator cannot synchronise
with the ultrasonic converter and issues an error message, e.g., Error 011. The frequency is reset
to the base value and the function is restored if no device fault or other cause is present.
The default value is “o ff ”. In order to activate the function, set the parameter to “start”
using the arrow keys, and then press the “START/STOP” key. See chapter 6.2.1
for additional information.
Search for resonance frequency [scan frequency]
This function is an expansion of the above-mentioned “probe check” function. In addition,
a frequency scan is conducted in order to determine the correct ultrasonic frequency for
the ultrasonic converter. Depending on the screen used and the operating conditions, this
may
fl uctuate strongly at times. When switched o ff , the ultrasound generator saves the current
frequency value and uses it as the start value when switched on again. If there are signi fi cant
deviations in the current frequency, this can lead to malfunctions.
Note:
After a successful scan while in continuous operation (pulsation = o ff , time > 30 s), start with
an amplitude setting of 50% and check the operation. Next, set the desired default value.
Setting the monitor contrast [contrast]
With this function, the monitor contrast can be adapted to the local light conditions. The contrast
values range between 1 and 68, and can be set with the
arrow keys. Smaller values result
in a darker image and larger values result in a lighter image. The default value is 22.
probe check off
scan frequency off
contrast 22
operating mode
Power
display Energy
batch mode
off
03.01 - 2016-08-085
21