The HD2010UC is an integrating portable sound level meter performing statistical analyses. The instrument has been designed combining price competitiveness and simplicity of use. Attention has been paid to the possibility of updating the instrument, and the HD2010UC can be integrated, at any time, with other options like “Advanced Data Logger” to extend its application scope. The firmware can be upgraded directly by the user using the NoiseStudio program supplied with the instrument. The HD2010UC conforms to IEC 61672-1 of 2002 and IEC 61672-1 ed. 2.0 of 2013, IEC 60651 and IEC 60804 specifications with class 2 or class 1 tolerances. The acoustic calibrator complies with IEC 60942 class 2 or class 1 specifications.

The HD2010UC is an integrating sound level meter and analyzer suitable for the following applications:

• Assessment of the environmental noise level,
• Occupational noise measurements at the workplace (according to ISO9612)
• Measurement at the workplace,
• Selection of personal protective equipment,
• Production quality control,
• Measurement of machine noise. 

With the optional “Advanced Data logger” function the sound level meter is able to perform the following task

• Environmental noise monitoring,
• Analysis of sound events,
• Complete statistical analysis with percentiles calculation from L1 to L99. 

Using a HD2010UC you can measure the sound level by programming 3 parameters and freely selecting the frequency weightings and time constants. You can measure parameters such as Leq, SEL and maximum and minimum sound levels with integration times from 1 second to 99 hours. If an undesired sound event produces an over-load indication, or simply alter the result of an integration, its contribution can be excluded 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 NoiseStudio program. For long term noise monitoring needs, it’s possible to increase the HD2010UC storing capacity with the optional HD2010MC Secure Digital memory card reader. This device is supplied complete with a 2GB memory card. As a statistical analyzer, the HD2010UC samples the sound signal 8 times per second with Afrequency weighting and FAST constant, and it analyzes it statistically in 0.5 dB classes. It is possible to display up to 3 percentile levels between L1 and L99. For further analysis, the LINE un-weighted output allows recording the sound signal either on tape or directly on a PC equipped with a audio acquisition card.

The high speed of the USB interface combined with the flexibility of the RS232 interface allows quick 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 lengthy recordings, you can 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 made either using the provided acoustic calibrator (type 1 according to IEC 60942) or the built-in reference generator. The electric calibration employs a special preamplifier and checks the sensitivity of the measuring channel, microphone included. A protected area in the non-volatile memory, reserved to factory calibration, is used as a reference in the user’s calibrations, allowing keeping instrument drifts under control and preventing the instrument from wrong calibrations. The check of the complete sound level meter functionality can be made directly by the user, on site, thanks to a diagnostic program.  

The HD2010UC sound level meter can perform the measurements required to evaluate workers’ noise exposure (ISO 9612/11 and D.Lgs.81/08). The selection of the personal protective equipment can be carried out, according to UNI EN 458, through comparison of the A and C weighted equivalent levels that can be measured simultaneously (SNR method). The noise source impulsivity is easily evaluated (according to UNI9432) measuring the equivalent sound pressure level A weighted with Impulse time constant (LAeqI). The class 1 HD2010UC sound level meter with the “Advanced Data Logger” option is suitable for sound level monitoring and acoustic mapping. Using the “Advanced Data Logger” option, it can also perform assessments of the acoustic climate with capture and analysis of sound events. When measuring traffic noise near airports, railways and roads, the sound level meter can be used as a multi-parameter sound recorder, combining statistical analysis features. Remote electrical calibrations and diagnostic tests can be executed using its remote control capabilities.

ORDER CODE:

HD2010UC.kit1: it includes class 1 sound level meter HD2010UC, UC52/1 free field prepolarized microphone, HDSAV windscreen, HD2010PNE2 preamplifier (or HD2010PNE2W with opt. HD2010.OE), HD2110USB cable (alternatively, on request, HD2110RS serial cable for RS232 connection), rechargeable batteries, SWD10 stabilized mains power supply, Noise Studio basic software downlodable from Delta OHM website, IEC 61672 manufacturer conformity declaration, carrying case and instruction manual.

HD2010UC.kit2: it includes class 2 sound level meter HD2010UC, UC52 free field prepolarized microphone, HDSAV windscreen, HD2010PNE2 preamplifier (or HD2010PNE2W with opt. HD2010.OE), HD2110USB cable (alternatively, on request, HD2110RS serial cable for RS232 connection), rechargeable batteries, SWD10 stabilized mains power supply, Noise Studio basic software downlodable from Delta OHM website, IEC 61672 manufacturer conformity declaration, carrying case and instruction manual.