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.

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 L_eq, L_XF and L_XS levels at intervals between 1 ms and 1 second
Fast-logging of 1/n-octave band L_eq, L_XF and L_XS 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.

Code	Name
-2255-B-KC1-	2255 Bauakustik-Kit Luftschall enthält u
-2255-B-S-	Schallpegelmesser 2255 mit Building Acou

Certificates and Approvals

2255 Type Approval Germany PTB Rev1

Type approval

German

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

Main Menu

Main Menu

Main Menu

Main Menu

HBK 2255

TAILORED FOR YOUR TASK

CHARACTERISTICS

MEASUREMENT CAPABILITIES

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