Larson Davis HVM100, Manual

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4/11/03 Introduction 1-7
About the HVM100
The HVM100 is a powerful, all digital, vibration analyzer. It
features simultaneous 3 channel measurements, small light-
weight design, easy to read display, portability utilizing 2
AA batteries, 115.2 kbps RS-232 interface, three modes of
Specification Unit SEN020 SEN021F SEN022
Voltage Sensitivity mV/g 1 10 100
Frequency Range (+/-5%) Hz 0.5 to 5,000 0.5 to 3,000 0.5 to 5,000
Frequency Range (+/-10%) Hz 0.3 to 6,000 0.3 to 5,000 0.3 to 6,000
Mounted Resonant Frequency kHz
≥
25
≥
25
≥
25
Measurement Range +/-g pk 1,500 500 50
Broadband Resolution (1 Hz to 10
kHz) g rms 0.005 0.0005 0.0001
Shock Limit +/-g pk 7,000 7,000 7,000
Operating Temperature Range
o
F [
o
C] -65 to +250 [-54 to
+121] -65 to +250 [-54 to
+121] -65 to +176 [-54 to
+80]
Amplitude Linearity %
≤
+/1
≤
+/1
≤
+/1
Transverse Sensitivity %
≤
5
≤
5
≤
5
Strain Sensitivity g/
µε
0.001 0.001 0.001
Excitation Voltage VDC 20 to 30 20 to 30 20 to 30
Constant Current mA 2 to 20 2 to 20 2 to 20
Output Impedance ohms <100 <200 <200
Output Bias VDC 8 to 12 8 to 12 8 to 12
Discharge Time Constant sec 1.0 to 2.0 1.0 to 2.0 1 to 3
Sensing Element Type Ceramic Ceramic Ceramic
Element Configuration Structure Shear Shear Shear
Electrical Connector type/location 4-Pin/side 4-Pin/side 4-Pin/side
Housing material/sealing Titanium/Hermetic Titanium/Hermetic Aluminum/Epoxy
Mounting Thread size 10-32 Female 10-32 Female 10-32 Male