Bruel & Kjaer Type 2270 – Vibration Analyzer/Sound Level Meter
Description
An advanced, dual-channel, hand-held analyzer and sound level meter that has everything needed to perform high-precision, Class 1 measurement tasks in environmental, occupational and industrial application areas. Type 2270 is a highly versatile, modular platform with many optional application modules such as frequency analysis, FFT, advanced logging (profiling) and sound recording. Its two measurement channels allow it to perform sound intensity measurements according to IEC 61043, sound power measurements, and two-channel building acoustics measurements.
Features
- Dual-channel input (microphone, sound intensity probe, accelerometer or direct signal)
- 4.2 Hz-22.4 kHz broadband linear frequency range with supplied microphone Type 4189
- 16.6 – 140 dB A-weighted dynamic range with supplied microphone Type 4189
- Inputs: AC or CCLD, External Trigger
- Outputs: Generator and Headphone
- Communication via USB, LAN, or GPRS/3G modems
- USB 2.0 host for connection to printer, GPS, weather station, modem
- Plug-in rechargeable Li-ion battery (> 8h operation)
- Photo annotations with built-in camera
Specifications
Specifications apply to Type 2250/2270 fitted with Microphone Type 4189 and Microphone Preamplifier ZC-0032 and used as a single channel instrument, indicated as Single Range, unless otherwise stated. For Type 2270 used as a dual-channel instrument measuring both channels simultaneously, the full measuring range is covered in two ranges. High Range indicates the least sensitive range and Low Range indicates the most sensitive range.
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SUPPLIED MICROPHONE |
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Type 4189: Prepolarized Free-field ½″ Microphone |
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Nominal Open-circuit Sensitivity: 50 mV/Pa (corresponding to −26 dB re 1V/Pa) ± 1.5 dB |
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Capacitance: 14 pF (at 250 Hz) |
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MICROPHONE PREAMPLIFIER ZC-0032 |
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Nominal Preamplifier Attenuation: 0.25 dB |
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Connector: 10-pin LEMO |
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Extension Cables: Up to 100m in length between the microphone preamplifier and Type 2250/2270, without degradation of the |
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specifications |
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Accessory Detection: Windscreen UA-1650 can be automatically detected when fitted over ZC-0032 |
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MICROPHONE POLARIZATION VOLTAGE |
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Selectable between 0V and 200 V |
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KEYBOARD |
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Pushbuttons: 11 keys with backlight, optimized for measurement control and screen navigation |
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ON-OFF BUTTON |
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Function: Press for 1 s to turn on; press for 1 s to enter standby; press for more than 5 s to switch off |
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STATUS INDICATORS |
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LEDs: Red, yellow and green |
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DISPLAY |
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Type: Transflective back-lit color touch screen 240 × 320 dot matrix |
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Colour Schemes: Five different. Optimized for different usage scenarios (day, night, etc.) |
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Backlight: Adjustable level and on-time |
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USER INTERFACE |
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Measurement Control: Using pushbuttons on keyboard |
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Setup and Display of Results: Using stylus on touch screen or pushbuttons on keyboard |
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Lock: Keyboard and touch screen can be locked and unlocked |
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USB INTERFACE |
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USB1.1 OTG Mini B socket |
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MODEM INTERFACE |
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Hayes compatible GSM or standard analogue modems connected through the Compact Flash slot |
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COMPACT FLASH SOCKET |
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For connecting CF memory card, CF modem or CF LAN Interface |
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LAN INTERFACE SOCKET (TYPE 2270 ONLY) |
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Connector: RJ 45 |
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Speed: 10 Mbps |
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Protocol: TCP/IP |
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INPUT SOCKET (2 . TYPE 2270 ONLY) |
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Connector: Triaxial LEMO |
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Input Impedance: ≥1MΩ |
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Direct Input: Max. input voltage: ± 14.14Vpeak |
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CCLD Input: Max. input voltage: ± 7.07Vpeak |
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CCLD Current/voltage: 4mA/25V |
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TRIGGER SOCKET |
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Connector: Triaxial LEMO |
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Max. Input Voltage: ± 20Vpeak |
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Input Impedance: > 47kΩ |
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OUTPUT SOCKET |
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Connector: Triaxial LEMO |
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Max. Peak Output Level: ± 4.46V |
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Output Impedance: 50Ω |
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HEADPHONE SOCKET |
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Connector: 3.5mm Minijack stereo socket |
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Max. Peak Output Level: ± 1.4V |
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Output Impedance: 32Ω in each channel |
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MICROPHONE FOR COMMENTARY |
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Microphone, which utilises Automatic Gain Control (AGC), isincorporated on underside of instrument. Used to create voice |
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annotations for attaching to measurements |
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CAMERA (TYPE 2270 ONLY) |
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Camera with fixed focus and automatic exposure is incorporated on underside of instrument. Used to create image annotations for attaching to measurements |
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Image Size: 640 × 480 |
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Viewfinder size: 212 × 160 |
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Format: jpg with exif information |
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EXTERNAL DC POWER SUPPLY REQUIREMENTS |
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Used to charge the battery pack in the instrument |
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Voltage: 8 . 24 VDC, ripple voltage < 20mV |
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Current Requirement: min. 1.5 A |
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Power Consumption: < 2.5W, without battery charging, < 10W when charging |
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Cable Connector: LEMO Type FFA.00, positive at centre pin |
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BATTERY PACK |
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Type: Li-Ion rechargeable |
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Typical Operating Time: > 8 hours |
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STORAGE SYSTEM |
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Internal Flash-RAM (non-volatile): 20 Mbyte for user setups and measurement data |
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External Secure Digital Memory Card (SD-card): For store/recall of measurement data |
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External Compact Flash Memory Card (CF-card): For store/recall of measurement data |
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CLOCK |
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Back-up battery powered clock. Drift < 0.45 s per 24 hour period |
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WARM-UP TIME |
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From Power Off: < 2 minutes |
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From Standby: < 10 seconds for prepolarized microphones |
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TEMPERATURE |
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IEC60068.2.1 & IEC60068.2.2: Environmental Testing. Cold and Dry Heat. |
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Operating Temperature: .10 to + 50°C (14 to 122°F), < 0.1 dB |
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Storage Temperature: .25 to +70°C (.13 to +158°F) |
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HUMIDITY |
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IEC 60068.2.78: Damp Heat: 90% RH (non-condensing at 40°C (104°F)). |
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Effect of Humidity: < 0.1 dB for 0% < RH < 90% (at 40°C (104°F) and 1 kHz) |
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MECHANICAL |
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Environmental Protection: IP44 |
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Non-operating: |
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IEC 60068.2.6: Vibration: 0.3mm, 20m/s2, 10 . 500Hz |
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IEC60068.2.27: Shock: 1000 m/s2 |
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IEC60068.2.29: Bump: 4000 bumps at 400m/s2 |
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WEIGHT AND DIMENSIONS |
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650 g (23 oz.) including rechargeable battery |
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300 × 93 × 50mm (11.8 × 3.7 × 1.9″) including preamplifier and microphone |
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USERS |
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Multi-user concept with login. Users can have their own settings with jobs and projects totally independent of other users |
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PREFERENCES |
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Date, time and number formats can be specified per user |
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LANGUAGE |
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User Interface in Catalan, Chinese, Croatian, Czech, Danish, English, Flemish, French, German, Hungarian, Japanese, Italian, Polish, Portuguese, Romanian, Serbian, Slovenian, Spanish, Swedish and Turkish |
