Mini-Seis III Pro™ Operating Manual
Page 25
Histogram Mode Functions
Histogram mode is ideal for recording peak vibration levels over intervals of time. It is most
often used when recording continuous or semi-continuous vibration where a time history is
not needed. The mode continuously samples, keeping the peak values in the specified time
interval. It also stores the frequencies at the peak values and optionally the vector sum.
Histogram
Rate: 1024 /SEC
Period: 60 SEC
Interval: 0 Hrs
Status: Inactive
Rate
The histogram sample rate can be 1024, 2048, 4096, 8192 or 16384 over 4 channels. The 8
channel model is limited to 8192 sps.
Period
The sample period choices are 1, 10, 20, 30, 40, 50, 60 and 900 seconds. In general, the
shorter the sample interval, the larger the record size.
Interval
The value of the interval is the amount of time the histogram will run before closing. The
value is in hours and can be from 0 to 12. A value of 0 means that the interval is disabled.
T
O
R
UN A
C
ONTINUOUS
H
ISTOGRAM
1.
Do not set a timer.
2.
Set the rate and period as desired.
3.
Set the Interval to 0.
4.
Press the Activate soft key.
The histogram will run continuously until midnight. At midnight the histogram will be closed
and a new histogram will be started. The process will continue until the histogram is made
inactive.
T
O
R
UN AN
I
NTERVAL
H
ISTOGRAM
1.
Do not set a timer.
2.
Set the rate and period as desired.
3.
Set the Interval to the number of hours desired. For illustration we will use 4.
4.
Press the Activate soft key.
Activate
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