User's Manual
Table Of Contents
- Introduction
- Getting Started
- Making a Measurement
- Technical Specifications
- Functions Measured
- General Characteristics
- Physical Characteristics
- Data Communication Characteristics
- Electrical Characteristics
- Adaptor Resonances and Frequency Responses
- Reference Values
- Typical Measurement Ranges
- Frequency Weighting Curves
- Fa (Flat 0.4 Hz to 100 Hz)
- Fb (Flat 0.4 Hz to 1260 Hz) Frequency Weighting
- Fc (Flat 6.3 Hz to 1260 Hz), Wh, and Wf Frequency Weighting.
- Wm, Wc, and Wd Frequency Weightings
- We, Wj, and Wk Frequency Weighting
- Wg Frequency Weighting (Defined in BS6841:1987)
- Wm (Whole Body) Frequency Weighting
- Typical Measurements Ranges
- Standards Met
- Glossary
- RMS Acceleration
- RMS Acceleration in Decibels
- Allowed Exposure Time
- Energy Equivalent RMS Acceleration
- Running RMS Acceleration LINEAR
- Running RMS Acceleration EXPONENTIAL
- Vibration Dose Value
- Maximum Transient Vibration Value
- Minimum Transient Vibration Value
- Long Term Maximum Peak
- Short Term Maximum Peak
- Long Term Crest Factor
- Short Term Crest Factor
- Summed Instantaneous Acceleration
- Regulatory Compliance Statement
HVM200 Manual Frequency Weighting Curves A-11
Wm, Wc, and Wd Frequency Weightings
Freq ( Hz)
Nominal
Freq ( Hz)
True
Wm dB Wc dB Wd dB
Tolerance
dB
0.100 0.100 -32.04 -24.10 -24.09 +2 / -
0.125 0.1259 -28.20 -20.12 -20.12 +2 / -
0.160 0.1585 -23.98 -16.19 -16.18 +2 / -
0.200 0.1995 -20.23 -12.34 -12.32 +2 / -
0.250 0.2512 -16.71 -8.71 -8.68 +2 / -2
0.315 0.3162 -13.51 -5.51 -5.47 +2 / -2
0.400 0.3981 -10.98 -3.05 -2.98 +1 / -1
0.500 0.5012 -9.53 -1.47 -1.37 +1 / -1
0.630 0.6310 -8.71 -0.64 -0.50 +1 / -1
0.800 0.7943 -8.38 -0.25 -0.08 +1 / -1
1.00 1.00 -8.29 -0.08 +0.10 +1 / -1
1.25 1.259 -8.27 +0.00 +0.06 +1 / -1
1.60 1.585 -8.07 +0.06 -0.26 +1 / -1
2.00 1.995 -7.60 +0.10 -1.00 +1 / -1
2.50 2.512 -6.13 +0.15 -2.23 +1 / -1
3.15 3.162 -3.58 +0.19 -3.88 +1 / -1
4.00 3.981 -1.02 +0.21 -5.78 +1 / -1
5.00 5.012 0.21 +0.11 -7.78 +1 / -1
6.30 6.310 0.46 -0.23 -9.83 +1 / -1
8.00 7.943 0.21 -0.97 -11.87 0
10.0 10.0 -0.23 -2.20 -13.91 +1 / -1
12.5 12.59 -0.85 -3.84 -15.93 +1 / -1
16.0 15.85 -1.83 -5.74 -17.95 +1 / -1
20.0 19.95 -3.00 -7.75 -19.97 +1 / -1
25.0 25.12 -4.44 -9.80 -21.98 +1 / -1