SKF Machine Condition Indicator User Manual page 16

SKF Machine Condition Indicator
How to Select the MCI's Alarm Mode
In percentage mode, minimum alarm levels are 7 mm/s RMS and 4 gE. Any calculated
alarm levels less then these minimum levels will be rounded up to these minimum levels.
To switch from threshold alarm mode to percentage alarm mode:
After activating and mounting the MCI, with the machine running at its nominal speed
and temperature:
LED blink
Read key action
sequence
change
1- Apply read key Until LEDs
for approximately change to solid
20 seconds GREEN
2 - Immediately LEDs change
remove read key to quick
GREEN
3 - Immediately LEDs change
reapply the read key to slower
GREEN
LEDs change
to faster
GREEN
LEDs change
to solid
GREEN
If the MCI fails to establish the baseline levels, the LEDs blink amber 3 times every 5
seconds for a twenty second duration - and the MCI returns to threshold mode.

8
 For accurate alarming, it is important that the machine is known to be in
good running condition prior to initiating percentage mode.
# blinks /
seconds
Solid
1 blink every
second
blinks
2 blinks every
5 seconds
blinks
Lasts about
10 seconds
3 blinks every
5 seconds
blinks
Lasts about
20 seconds
Solid
Lasts about
10 seconds
If the amber LEDs display, confirm that the machine is running at its nominal speed
and temperature before trying to place it in percentage mode again. If the MCI still
cannot establish a baseline (typically due to fluctuating conditions), you should use
your SKF Microlog Analyzer to determine the cause. If you cannot determine a
cause, contact your SKF representative for assistance.
Indicating Notes
Start of alarm During the 20 seconds, the
mode change MCI is progressing through
its activation / alarm status
procedure
You have 4 seconds to
remove read key
MCI is in % You have 4 seconds to
mode and is reapply read key
acquiring
2 blinks every 5 seconds
baseline
indicate % alarm mode is
readings
active
You may remove the read
key after slower blinks
commence
Baseline
readings are
acquired
Procedure is
complete
SKF Machine Condition Indicator
User Manual