SPM leonova emerald, Руководство пользователя

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Shock pulse measurement
D:27
D
For LR/HR values, the measuring unit is dBsv, i.e.
these values are measured on the absolute shock
pulse scale and do not, by themselves, express
operating condition.
The term delta value simply means the difference
between LR and HR.
The operating condition of the bearing is expressed
by the CODE letter, the LUB no., and the COND.
no., all of them not measuring but evaluation
results.
CODE A means that the bearing is in good condi-
tion. There is no detectable damage to the surfaces
of the load carrying parts, and no extreme lack of
lubricant in the rolling interface.
CODE B indicates dry running. The lubricant is not
reaching the rolling interface. This can have several
causes, e.g. lack of lubricant supply to the bearing,
low temperature in a grease lubricated bearing,
or a heavy overload due to misalignment, tight fit,
deformed housing, etc.
CODE C is displayed when the instrument detects
an increased shock pulse level with a large delta
value. This points to beginning surface damage.
CODE D
is displayed when the signal is typical for
bearing damage: a high shock level with a large
delta value. Contamination of the lubricant by hard
particles causes a similar signal.
The message of the codes is supported by the
status dot: green for CODE A, yellow for B and C,
red for D.
LR
Measured value for strong
shock pulses.
HR Measured value for weak
shock pulses.
LR-HR Delta value.
dBsv Unit for absolute shock pulse
value.
CODE A Good condition
CODE B Caution, dry running
CODE C Caution, damage developing
CODE D Bad condition
LR/HR values and CODE
B
C
C
A
D
D