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Sound and Vibration Instrument Hire and Calibration

Larson Davis HVM100 Specifications


Larson Davis HVM100 Hand Arm, Whole Body Vibration Meter
 
HVM100   Vibration White Finger Meter £ 24 a day *
 
HVM100   Hand Arm and Whole Body Vibration Meter Hire £ 34 a day *
 

The Larson Davis HVM100 Human Vibration Meter is a Type 1 instrument designed for assessing vibration as perceived by human beings.

Standards
The HVM100 meets the requirements of BS EN ISO 8041:1990(E) including Amendment 1: 1999(E).
 
Additionally, the current BS EN ISO 8041 standard, and therefore the HVM100, is compatible with the standards listed below. These standards define methods for the measurement of whole body and hand arm vibration.
 
BS ISO 2631-1 Mechanical vibration and shock - Evaluation of human exposure to whole body vibration -- Part 1: General requirements.
 
BS ISO 2631-2 Evaluation of human exposure to whole body vibration - Part 2: Continuous and shock induced vibrations in buildings (1 to 80 Hz)
 
BS ISO 2631-4 Mechanical vibration and shock - Evaluation of human exposure to whole body vibration - Part 4: Guidelines for the evaluation of the effects of vibration and rotational motion on passenger and crew comfort in fixed guide way transport systems
 
BS EN ISO 5349-1 Mechanical vibration - Measurement and evaluation of human exposure to hand-transmitted vibration -- Part 1: General requirements
 
BS EN ISO 5349-2 Mechanical vibration - Measurement and evaluation of human exposure to hand transmitted vibration -- Part 2: Practical guidance for measurement at the workplace
 

Effects of Temperature
The RMS level varies ±0.5 dB when the complete instrument is tested over the - 10° C to 50° C temperature range. The reference reading, for this test, is taken at 20° C and 36% relative humidity (RH); the input signal is at 79.6 Hz.
 
Effects of Humidity
The RMS level varies ±0.5 dB when the complete instrument is tested over the 30% to 90% RH range. This test is performed at 40° C, with an input signal of 79.6 Hz.
 
Limits of Temperature and Humidity
Permanent damage can occur when stored or operated above 60° C or below -20° C. Condensation of moisture will make readings inaccurate. When condensation dissipates, readings should return to normal.
 
Effects of Magnetic Fields
The RMS level varies ±0.5 dB when the complete instrument is tested in an 80 A/m, 60 Hz magnetic field (worst case orientation).
 
Effects of Mechanical Vibrations
The instrument meets the specifications for susceptibility to vibration in accordance with BS EN ISO 8041:1990(E) section 7.1.
 
Stabilization Time
At power-on, allow the instrument to stabilize, approximately 20 seconds, prior to performing any measurements. When changing from one type of input (Direct/Charge/ICP®) to another or when changing the instruments gain settings, allow 10 seconds of stabilization time prior to performing a new measurement.
 
Data Storage
 
Data Communications
 
Digital Display
 
Real-time Clock/Calendar
 
Run-time Clock
 
Power Supply
 
Dimensions/Weight
 
E&OE - specifications subject to change without notice.