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HBK 2255 02
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HBK 2255 06
HBK 2255 onWork N2A5691
2255 SLM
sound level meter 2255 app laptop

HBK 2255

HBK 2255 Sound Level Meter is an advanced, single-channel, class 1 measurement solution. Designed for users with varied and complex workloads, HBK 2255 can be relied upon to get the job done efficiently and with maximum confidence. HBK 2255 works seamlessly with a range of apps, each providing a complete solution for a specific job-to-do. Accurate acoustic measurement, analysis and documentation has never been so simple.

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HBK 2255

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HBK 2255 Sound Level Meter is available in different versions, each designed with specific features for measuring and controlling building acoustics, environmental noise, workplace noise, product noise plus other advanced functionalities to get the job done efficiently and with maximum confidence.

 

TAILORED FOR YOUR TASK

Made Even Simpler

With just seven easy to reach buttons and a bright, clear display. HBK 2255 Sound Level Meter is exceptionally easy and comfortable to use. Transducers used with the 2255 can either be setup manually or via TEDS where the instrument automatically detects the attached microphone and configures itself accordingly.

 

Made Even Easier

HBK 2255 Sound Level Meter comes tailored for your job-to-do, and works seamlessly with intuitive, task-specific apps for your mobile phone and PC. With this latest Sound Level Meter, sound insulation testing can be completed with the Building Acoustics Partner iOS and PC apps. 

 

Made Even Smarter

Automatic transfer of measurements to storage media for backup and analysis, utilizing network or USB connections, including support for NAS. Weather station support, Fast Logging to 1ms and Analysis-quality audio recordings are available for the HBK 2255. The sound level meter is designed from the ground up to support both in IOS and Android apps. This enables us to add new features and updates without the need to update the HBK 2255.

 

Made Even Faster

The new software applications for PC are simple to install and use. Data is quickly and easily transferred to your PC and organized intuitively, ready for analysis and reporting, using preconfigured, user-friendly tools.

 

CHARACTERISTICS

  • Single measurement range: 23.2 – 140.9 dB from the noise floor to maximum level, A-weighted 
  • Removable preamplifier with TEDS for automatic microphone setup 
  • Integrated GPS for time and location 
  • Ergonomic design for comfortable single-handed operation 
  • Colour LCD with a bright, clean layout that clearly displays measured level and measurement status 
  • Measurement status light-ring visible from any angle 
  • Built-in Li-Ion battery, typically providing more than 13 hours operation with Wi-Fi enabled 
  • 16 GB built-in storage for measurements and annotations 
  • Integrated Wi-Fi and Bluetooth® Low Energy for connection to mobile and PC apps

 

MEASUREMENT CAPABILITIES

  • IEC 61672-1 class 1 sound level meter 
  • Broadband level measurements with up to three simultaneous frequency weightings 
  • 1/1- and/or 1/3-octave band frequency analysis for up to two simultaneous frequency weightings 
  • Logging of all parameters at intervals between 1 second and 1 minute 
  • Fast-logging of broadband Leq, LXF and LXS levels at intervals between 1 ms and 1 second 
  • Fast-logging of 1/n-octave band Leq, LXF and LXS levels at intervals between 4 ms and 1 second 
  • Reverberation time measurements with interrupted or impulsive noise stimuli 
  • Broadband and spectral statistics for 5 percentiles. Full level distribution stored allowing re-calculation of arbitrary percentiles in HBK apps. 
  • Listening quality MP3-compressed audio recording 
  • Analysis quality FLAC-compressed audio recording (65 kHz, 24-bit) 
  • Level and timer-based audio recording triggers 
  • Scheduled multi-frequency CIC checks for unattended monitoring applications 

* Available measurement features depend on installed software licenses. Refer to product data sheet for details. 
HBK 2255
Number of inputs Single channel
Standard IEC 61672, ANSI S1.4, Other national standards
Sound field Free field, Diffuse field
Polarization None
Sensitivity 50 mV/Pa
Lower frequency 5 Hz
Higher frequency 20 kHz
Lower dynamic range 23.2 dB
Higher dynamic range 140.9 dB
Dimension (length x width x depth) 213 x 68 x 37 mm
Dimension (length x width x depth) 8.2 x 2.7 x 1.5 in
Weight 367 kg
Weight 13 oz
Degree of protection IP54
Display 240 x 320 dot
Operating time on battery 13 h
Measurement storage 16 GB
Communication interface USB, Bluetooth, WiFi
Analysis software Signal Recording

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