Specifications

Vibration Meter
Channels••1 (Single-channel)

Parameters••Real time measurement in»»Acceleration: m/s2, g, in/s2, dB»»Velocity: m/s, in/s, dB»»Displacement: m, in, dB»»Peak particle velocity PPV: mm/s, in/s»»Levels: RMS, Peak, Peak-Peak

VibMeter••Broadband level»» Frequency range: 0.8 Hz - 2.5 kHz••Spectral»»1/1 octave band display: 1 Hz - 2.0 kHz
sub ranges 1 Hz - 500 Hz or 4 Hz - 2 kHz»»1/3 octave band display: 0.8 Hz - 2.5 kHz
sub ranges 0.8 Hz - 1.0 kHz, 2.5 Hz - 2.5 kHz»»Broadband level measured withbandwidth (- 3dB): 0.7 Hz – 23.6 kHz••Display according to DIN 45669-1:2010»»Unweighted velocity v(t)»»Maximum absolute velocity ¦v¦max»»Averaging duration Tm»»Measurement duration TMFilter••Flat (no filter)
Bandwidth (- 3dB): 0.7 Hz – 23.6 kHz••10 - 1000 Hz according to ISO 2954 with decayrate = 18 dB / octave••1 - 80 Hz, 1 - 315 Hz acc. to DIN 45669-1:2010
with decay rate = 12 dB / octave

Audio
Recording inVibMeter••Default»»Recording of compressed wav-files(ADPCM - 4 bit, 24 kHz)»»a new wav-file starts every 12 hours(max. wav-file size 512 MB)»»Bandwidth: 2.0 Hz - 10.2 kHz••Optional: Extended Acoustic Pack»»Recording of linear wav-files (24 bit, 48 kHz)»»a new wav-file starts every 1 hours(max. wav-file size 512 MB)»»Bandwidth: 2.0 Hz - 23.6 kHz

FFT••Frequency range: 1 Hz - 1.69 kHz••Optional: High-resolution Zoom-FFT with selectable frequency ranges and resolution up to0.4 Hz in the range of 1 Hz to 20 kHz

1/12 Oct••Actual level, Lmin, Lmax, Leq, Leq1”, Leq4”••Selectable 1/1, 1/3, 1/6 and 1/12 octave spectral resolution••Measurement Units»»Acceleration: m/s2, g, in/s2, dB»»Velocity: m/s, in/s, dB»»Displacement: m, in, dB••Band pass filters (base 10)••Optional: Frequency range: 0.73 Hz - 1.36 kHz

Maximum Input
Level••353 m/s2, 36 g @ 20 mV/(m/s2)
with ICP Adapter ASD

Residual Noise(typical) withICP Adapter
ASD••17 µV @ 0.7 Hz ... 23.0 kHz••14 µV @ 1 Hz ... 315 Hz••14 µV @ 1 Hz ... 80 Hz265

Specifications

Referencemeasurementrange••MidTOSLink

24 bit linear PCM audio signal output(prepared for later firmware extension)

MemorySD Card included (8 GByte), removable, storingmeasurement data in ASCII format, screen shots,
voice notes and wav-files

Input / Output Interfaces
Audio Inputs••XLR balanced»»Input impedance = 200 kOhm»»Phantom power: +48 VDC switchable with maximum 10 mA supply current in accordance withIEC 61938»»Automated sensor detection for NTi Audio’s ASD
measurement microphones and pre-amplifierMA220••RCA unbalanced with input impedance >30 kOhm••Built-in condenser microphone for polarity testing,delay measurements and voice note recording

AudioOutputs••Built-in speaker••Headphone connector»»3.5 mm Minijack»»mono monitor wired to both channels of stereojack»»Linear output signal over a measurement rangeof 57 dB in SLMeter measurement function

USB Interface

USB mini connector for data transfer to PC, XL2
Projector PRO and/or charging of Li-Po battery

Digital I/OConnection interface to accessories••XL2 Input Keypad••Limit Light••Stack Light••Digital I/O Adapter PCB

266

Data logging every second offers following noisemonitoring periods:••Logging default noise levels: > 2 years••Additional logging of 1/3 octave data: > 6 month••Additional»»compressed audio recording: > 1 week»»linear audio recording: > 15 hours
Optional 32 GB SD Cards are available for longer
monitoring requirements; requires XL2 Firmware
V4.10 or higher.
PowerSupply••Rechargeable Li-Po battery included»»Type 3.7 V / 2260 mAh»»Typical battery lifetime > 4 hours»»Range: 3.3 - 4.5 VDC»»Volume energy density = 339 Wh/l••Dry cell batteries type AA, 4 x 1.5 V»»Typical battery lifetime > 4 hours»»Range: 3.7 - 6.0 VDC••Linear external power supply 9 VDC»»Range: 7.5 - 20.0 VDC @ minimum 6 Watt»»Charges Li-Po battery during operation••USB-Power Supply»»for short-term operation < 1 day»»charging power is equal or less than power consumption

Specifications

PowerSupply••External battery pack»»22 Ah battery pack: 4 days»»44 Ah battery pack: 8 days

GeneralClock••Default»»Real-time clock with lithium backup battery»»Typical life backup battery: 8 years»»Return instrument for battery replacement»»Drift < 1.7 seconds per 24 hours••Special XL2 edition, NTi Audio # 600 000 356»»VCXTO clock»»Drift < 0.04 seconds per 24 hours

Mechanics••Tripod or microphone stand mount 1/4”••Wire stand mounted on rear side••Display: 160 x 160 pixels grey scale with LED backlight••Dimensions (L x W x H)»»180 mm x 90 mm x 45 mm»»7.1” x 3.5” x 1.8”••Weight: 480 g (1 lb) including built-in Li-Po battery

Temperature-10 °C to +50 °C (14° to 122°F)

Humidity

5% to 90% RH, non-condensingStatic airpressure

65 kPa to 108 kPa

Susceptibility to radio
frequencies

Classification Group X

Electromagnetic Compatibility

CE compliant:EN 61326-1 Class B, EN 55011 class B
EN 61000-4-2 to -6 & -11

Protection
RatingIP51

ATEX••For applications in explosive atmospheres withinzone 2 in accordance with IEC 60079••Conforms to 2014/34/EU267