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HD 2010 UC – Integrating Sound Level Meter

HD2010UC is an integrating portable sound level meter performing statistical
analysis. The instrument has been designed combining maximum low cost
and simplicity of use. Attention has been paid to the possibility of adjusting the
instrument and adding options at any time to the HD2010UC so to extend its
applications. The user can upgrade the fi rmware directly by means of the Noise
Studio programme supplied with the instrument. HD2010UC is equipped with
a backlit graphic display.
Technical regulations:
• Class 1 or 2 sound level meter according to IEC 61672-1 dated 2002 (Type
Approval Certifi cate I.N.RI.M. n. 07-0124-02), IEC 60651 and IEC 60804.

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Product Description

HD2010UC is an integrating portable sound level meter performing statistical
analysis. The instrument has been designed combining maximum low cost
and simplicity of use. Attention has been paid to the possibility of adjusting the
instrument and adding options at any time to the HD2010UC so to extend its
applications. The user can upgrade the fi rmware directly by means of the Noise
Studio programme supplied with the instrument. HD2010UC is equipped with
a backlit graphic display.
Technical regulations:
• Class 1 or 2 sound level meter according to IEC 61672-1 dated 2002 (Type
Approval Certifi cate I.N.RI.M. n. 07-0124-02), IEC 60651 and IEC 60804.
Applications:
• Assessment of the environmental noise level,
• Optional “advanced data logging”,
• Optional capture and analysis of sound events,
• Statistical analysis with the calculation of 3 percentile level and optional full
statistical analysis,
• Noise monitoring (“Advanced data logger” option required)
• Identifi cation of impulsive noises,
• Measurements in workplaces,
• Selection of personal protective equipment (SNR and HML methods),
• Production quality control,
• Measurement of machine noise, sound power measurements.
With HD2010UC sound level meter it is possible to measure the sound pressure
level by programming 3 parameters with the possibility of freely selecting the
frequency weightings and the time constants. It is possible to measure parameters
such as Leq, SEL, maximum and minimum sound levels with integration
times from 1 second to 99 hours. If an undesired sound event produces an overload
indication, or simply alters the result of integration, it is always possible to
exclude it by using the versatile Back-Erase function.

The measured sound levels can be recorded in the large non-volatile memory
in order to be transferred to a PC using the supplied Noise Studio software
package.
As a statistical analyzer (option HD2010.O2 “advanced data-logger” compulsory)
the HD2010UC samples the sound signal 8 times per second with A-frequency
weighting and FAST time constant, and analyzes it statistically in 0.5 dB
classes. It is possible to display up to 3 percentile levels between L1 and L99. By
using “Advanced Data Logger” it is possible to choose whether sampling LFp,
Leq or Lpk with A, C or Z weightings (only C and Z for Lpk).
For further analysis, the LINE un-weighted output allows recording the sound
sample either on tape or directly on a PC equipped with a data acquisition card.
The high speed of the USB interface combined with the fl exibility of the RS232
interface allows fast data transfers from the sound level meter to the PC mass
storage, but can also control a modem or printer. For example, in case of long
term measurements, it’s possible to activate the “Monitor” function. This function
allows to send the displayed data to a PC via the RS232 serial interface, to
be directly stored on the PC mass storage.
The sound level meter can be completely controlled by a PC through the multistandard
serial interface (RS232 and USB) by using a special communication
protocol. Through the RS232 interface, the sound level meter can also be connected
to a PC via modem.
The calibration can be performed either by using the acoustic calibrator (class
1 or class 2 according to the sound level meter version) or the built-in reference
generator. The electric calibration uses a special preamplifi er and checks the
sensitivity of the measuring channel, microphone included. A protected area in
the non-volatile memory, reserved to factory calibrations, is used as a reference
for the user’s calibrations, so to allow keeping instrument drifts under control
and to prevent the instrument from losing of calibrations.
The control of the complete sound level meter functionality can be made directly
by the user, on site, thanks to a diagnostic programme.
The HD2010UC sound level meter can perform measurements according to the
law with respect to workers’ protection from exposure to noise (D.Lgs.n.81/2008,
UNI 9432/2011, ISO 9612/2011). The selection of the personal protective equipment
(PPE) can be carried out through comparison of the A and C weighted equivalent
sound pressure levels that can be measured simultaneously (SNR method).

Download

Manuals and Brochures here.  

HD2010UC.pdf

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