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.

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	Actions	Price	Availability	Name
-2255-N-W-				SLM 2255 Noise Partner w/o MicSet
-2255-E-SC-				SLM 2255 Enviro Noise Partner w. 4231
-2255-B-SC-				SLM 2255 Building Ac. Partner w. 4231
-2255-B-S-				SLM 2255 Building Acoustics Partner
-2255-P-S-				SLM 2255 Product Noise Partner
-2255-N-I-				SLM 2255 Noise Partner, Syst.Integrators
-2255-N-IW-				SLM 2255 NP, Sys. Int. w/o MicSet
-2255-W-S-				SLM 2255 Work Noise Partner
-2255-B-K01-				SLM 2255 Building Acoustics Kit (Airb)
-2255-B-KC2-				SLM 2255 Building Ac. Kit (A&I) w.4231
-2255-W-SC-				SLM 2255 Work Noise Partner w.4231
-2255-N-S-				SLM 2255 Noise Partner
-2255-E-S-				SLM 2255 Enviro Noise Partner
-2255-B-K02-				SLM 2255 Building Ac. Kit (Airb&Imp)
-2255-N-SC-				SLM 2255 Noise Partner w.4231
-2255-B-KC1-				SLM 2255 Building Ac Kit (Airb) w.4231
-2255-P-SC-				SLM 2255 Product Noise Partner w.4231

File	Description	Type	Languages	Size
Product Information - HBK 2255 Sound Level Meter		Technical Document	English	381 KB
HBK 2255 – Instruction Manual (be1917)	HBK 2255 Sound Level Meter for use with Microphone Type 4966 Manual used for type approval	Technical Document	English	4 MB
HBK 2255 - Data sheet (bp2679)		Technical Document	English	1 MB
HBK 2255 Sound Level Meter Building Acoustics Partner EN BG 1974 - print A4		Marketing Document	English	20 MB

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 [mV/Pa]	50 mV/Pa
Lower frequency [Hz]	5 Hz
Higher frequency [Hz]	20 kHz
Lower dynamic range [dB]	23.2 dB
Higher dynamic range [dB]	140.9 dB
Dimension (length x width x depth) [mm]	213 x 68 x 37 mm
Dimension (length x width x depth) [in]	8.2 x 2.7 x 1.5 in
Weight [kg]	367 kg
Weight [lb]	13 oz
Degree of protection	IP54
Display	240 x 320 dot
Operating time on battery [hrs]	13 h
Measurement storage [GB]	16 GB
Communication interface	USB, Bluetooth, WiFi
Analysis software	Signal Recording

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HBK 2255

TAILORED FOR YOUR TASK

CHARACTERISTICS

MEASUREMENT CAPABILITIES

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