Display and operating elements
VIBROCONTROL 920
VC920E / C102833.002 / V 13
Page 11 / 33
4
Internal Tests and Error Signals
After switching the instrument on a number of tests are executed. If the result
of the test reveals an error in the operation of the instrument, this is displayed
on the measurement value field in the form of an error message.
4.1
Test of the LED display and alarm LEDs
The LED seven-segment displays are checked by displaying the figure 8, and
the associated decimal points are switched on. The alarm LEDs light up in
the sequence green - yellow - red. This test lasts for approx. 4 seconds.
4.2
Displaying the program version
In the mode display field a "v" is displayed and in the measurement value
display field the version number is displayed.
4.3
Displaying the calibration constants
In the mode display field a "c" is displayed and in the measurement value
display field the calibration constants are displayed.
4.4
Error messages
The error messages are displayed in the form of an " " followed by a
number. The display of the measurement value is overwritten for the duration
of the error message. In addition to the visual error signal, an error message
is always signalled by activation of the corresponding limit or OK relay.
If the input of the measured value is overmodulated, the dislay shows „
ccc
„.