Shock pulse measurement
D:29
D
The COND number and error codes
CODE C
COND 28 to 32
Beginning bearing damage
HR
LR
CODE C
COND >32
Minor to severe bearing damage
HR
LR
The COND No. (condition number) is displayed with CODE B,
C, and D, i.e. for all bearings with reduced or bad condition.
It indicates the degree of surface deterioration or damage
in the rolling interface.
Large (visible) surface damage typically leads to a very
marked increase in the bearing’s LR readings and a high
delta value. Thus, it is easily detected and will give Code D
and high COND numbers.
When a COND number is displayed, the bearing should be
watched very carefully. Once damage has started, it cannot
be reversed. Temporary improvements of the COND No.
only mean that the edges of fresh spallings or imprints have
been rounded off. Soon, there will be new spallings. The time
left to plan a bearing replacement depends on the trend of
the COND No. As a rule, COND Nos. should be interpreted
as follows:
COND No. < 30
Minor damage
COND No. 30 to 40 Increasing damage
COND No. > 40
Severe damage
ERROR CODES
E2 Disturbance
E3 Signal too low
When the measured signal is not within the evaluation frame,
the Leonova will display error codes. E2 is displayed when HR
> LR, which normally means a high, even disturbance signal
such as pump cavitation or a screaming steam box. E3 =
signal too low can often be remedied by setting a COMP no.
Summary of Contents for leonova emerald
Page 1: ...User guide PORTABLE EFFICIENCY ...
Page 2: ......
Page 6: ...A 2 General instrument functions A ...
Page 36: ...B 2 General measurement functions B ...
Page 74: ...C 2 Measurement techniques always included B C ...
Page 88: ...D D 2 Shock pulse measurement ...
Page 122: ...D D 36 Shock pulse measurement ...
Page 124: ...E E 2 Vibration measurement ...
Page 150: ...E E 28 Vibration measurement ...
Page 152: ...F F 2 Rotor balancing ...
Page 170: ...F F 20 Rotor balancing ...