Nor150 støy og vibrasjonsmåler leveres med ½” forforsterker Nor1209 og ½” målemikrofon Nor1225.
Den er i samsvar med den siste revisjonen av følgende nasjonale og internasjonale standard inkludert endringer, alle type 1 / class 1; IEC 61672, IEC 60651, IEC 60804, IEC 61260, DIN 45657, ANSI S1.4, ANSI S1.11, and ANSI S1.43.
Measured parameters
Simultaneous measurement of SPL, Leq, LeqI, LMax, LMin, LE, LEI, LPeak, Ln and Tmax5.
Time weighting functions: Fast, Slow and Impulse (Simultaneous).
Spectral weighting functions: A, C and Z – weighting (Simultaneous).
Frequency analysis: 1/1 and 1/3 octave real time filters from 0,4 Hz to 20 kHz.
Statistical calculations: 8 individual adjustable percentiles from L0,1% to L99,9%, The statistical calculations are performed in real time within each frequency band and for each profile period if period length is set longer than 2 minutes. User can select between Fast or Slow time weighting as basis for the statistical calculation.
Measurement control
Overall measurement duration: 1 sec – 7 days. (If set to Repeat or Synchro mode a new measurement will be started automatically, with no time gap between each measurement.).
Time profile A resolution: 5 ms – 24 hours including full frequency spectra. From 1 sec if profile B or Moving is enabled.
Time profile B and Moving resolution: 1s – 24 hours. A, C and Z – no frequency spectra.
Back erase in Pause mode: 0-20 sec free selectable graphical back erase.
Audio recording
12 and 48 kHz sampling rate / 8 , 16 and 24 bits / 0-120 sec pre-trigger.
Measurement range
One range covering 120dB without any range adjustments.
Self noise measured with 1/2” microphone with a nominal sensitivity of 50mv/Pa: 17 dBA.
Maximum RMS level 137 dBA, Maximum Peak level 140 dB PeakC.
The high SPL mode enables measurements up to 194 dB using a suitable 1/4” microphone.
Noise generator
Built in noise generator with Sine, White, Pink and 1/1 and 1/3 octave band passed filtered noise and Impulse noise.
Sound Intensity
Full on-board support for ISO 9614-2 with intuitive warning indicators and measurement based suggestions for improvements. Fulfils IEC 61043 class 1 requirements.
Dynamic capability Nor150 combined with Nor1290 Sound Intensity probe with 12mm spacer; >18 dB (125 Hz -10 kHz), >13 dB (f ≥40 Hz)
Reverberation time
Parallel calculation of T15, T20 and T30 in addition to Tmax for Noise excitation and EDT for impulse excitation.
FFT
Sampling rate: 48 kHz.
Frequency resolution: 1.46 Hz or 2.92 Hz (FFT size 8192 or 16384 lines).
Upper frequency: 22kHz
Functions: Auto spectrum, linear averaging.
Acquisition rate: ~700 ms – no overlap.
Display: Dynamic display zoom 1 – to 64 in power-of-two steps.
Time windowing: Hanning
Display
4,3” colour display, ¼ VGA with capacitive touch. Protected by an anti-smudge coated and scratch-proof glass.
GPS / Camera
Built in GPS.
Built in Camera for annotation before and after a measurement. Support for use of external IP or device cameras for event triggered pictures during a measurement. The event captured pictures are automatically timestamped, transferred to Nor150 and are bundled with the measurement.
Datastorage / Datatransfer
Storage modes: Manual, Auto, Repeat and Synchro. Synchro synchronise the start of the next measurement to the next full hour.
Internal memory: 350 MB – not used for measurement storage.
Micro SD card: Up to 64 GB, supports XC and HC standard.
Data can also be stored on an external USB stick.
Data transfer via LAN, USB and high-speed RS232. Supports WLAN and GPRS – 3G/UMTS – 4G/LTE via USB.
Inputs
Microphone input: Two microphone inputs (Second channel optional). Supports standard 7 pin lemo preamplifiers including SysCheck, Microphone heating, TEDS and IEPE. Polarization voltage: 0, 70 and 200V. Preamplifier voltage is ± 15V. Both channels are connected to the main microphone input in Sound Intensity mode. Channel 2 is multiplexed and replaces the SysCheck feature.
Comment microphone: Via 3 pin mini jack.
Analouge inputs
AC out, 100mV full scale on 15 pin I/O socket.
3 pin mini jack headphone socket for replay of voice notes, listen to microphone AC signal or replay of audio recordings. Comment microphone for voice notes is connected to same plug.
Signal generator on 15 pin I/O socket with Pink, White, Band-pass filtered, sine and impulse noise.
Power
Rechargeable 3,5Ah Li-Ion batteries with fuel gauge.
External power 10-28Vdc 3-5Watt.
Typical battery lifetime: 8 hours.
Dimensions / Weight
Dimensions: 240 x 82 x 39mm (ex. preamplifier and microphone LxWxH)
Weight: 700 g (including preamplifier and microphone)