VIBSCANNER 11.2010
53
Limits
Limits
The VIBSCANNER uses limits that comply with ISO norms
or user-defined settings to evaluate the measurement
results. Depending on the limits selected, one of the four
LEDs above the display lights up after measurement:
Blue=OK;
Green=Prewarning;
Yellow=Warning;
Red=Alarm
For vibration measurements, limits corresponding to the
new ISO 10816-3 can be set up (page 66).
For the shock pulse measurement (bearing condition), the
upper alarm value is preset:
- Carpet value = 15 dBn
- Max. value = 35 dBn
User-defined limits must be set up for all further measure-
ment tasks.
Display when a limit is exceeded
If a limiting value is exceeded, the limit that is exceeded
and the difference between both values are also displayed
as well as the measured value.
Example: Vibration velocity measurement with limiting
values according to ISO 10816-3 Group 1, rigid foundation
(Prewarning limit: 2.3 mm/s). The green LED above the
display lights up.
‘Upper Prewarning limit’
Meas. value ‘minus’ limit
For the characteristic overall values, 0-Peak (0-p) and
Peak-Peak (p-p), no limiting values are specified in the
ISO 10816-3 norm.
Note
