Device for bearing diagnostics using shock pulse method
Operation manual
Section 4 Operation
15
4.2.2.
Operation modes
GENERAL FUNCTIONS
Tester on/off:
Press any function key to switch on the BALTECH VP-3450 tester. The tester
shuts down automatically in 30 seconds after the last pressing of any key.
Sensor and headphone connection
A screw BNC connector (9) is used to connect the shock pulse sensor, the
output (10) is used to connect the headphones; once headphones are
connected the headphone mode is activated; disconnect the headphones from
the tester if you want to exit the headphone mode.
Memory
When the tester is shut down the following information is saved: the last
shock pulse reading (dBm, dBc, dBi), arrow position on the condition scale;
press the SET key to change settings, the last reading or arrow position on
the condition scale will not be changed; press the M key to perform a new
measurement.
SHOCK PULSE MEASUREMENT
The standard shock pulse reading (dBN) displays a bearing condition. The
initial bearing dBi value should be input before measurement; VP-3450
received the dBi value within the range 9
～
40dBi; the absolute dBsv value
measurement is used to adjust ranges.
When dBi is lower than -9 the display shows “--”(two hyphens).
Initial dBi value setting
There are two methods to set the initial dBi value:
1)
Direct change of the initial dBi value
Press the SET key to open the menu. The cursor will flash on the current
dBi value (Figure 4-1).
