User's Manual

HVM200 Manual B-3
Vibration Dose
Value
The VDV integration time is from Run to Reset; the display is updated once
per second. The VDV is not calculated for units of dB or g.
Maximum
Transient
Vibration Value
Amax = maximum reading of all Arms readings from Run to Reset.
The display is updated at the end of each Averaging time period.
Minimum
Transient
Vibration Value
Amin = minimum reading of all Arms readings from Run to Reset.
The display is updated at the end of each Averaging time period.
Long Term
Maximum Peak
Amp = peak level of the instantaneous weighted acceleration, a
w
(t); mea-
sured over the entire measurement period, from Run to Reset.
The displayed Amp value is updated once per second.
Short Term
Maximum Peak
Peak = peak level of the instantaneous weighted acceleration, a
w
(t); mea-
sured during one Averaging time period.
The peak measurement period is controlled by the Averaging time setting; a
new Peak value is calculated and displayed at the end of each Averaging
time period.
Long Term Crest
Factor
The CFmp measurement period is from Run to Reset; the display is updated
once per second.
Term Equation Description
VDV a
w
4
ttd
0
T





1
4
---
=
CFmp
Amp
Aeq
-----------=