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Sound and Vibration Instrument Hire and Calibration

Diagnostic Instruments Specifications


 
Diagnostic Instruments FFT Analyser
 

The DI 2200 has been withdrawn from our hire lists, for FFT analysis please see the B&K 2250 FFT Option.

The following information is for reference purposes only.

 
DI 2200 : Real Time - FFT Analyser - dual channel  
 

Inputs


No of channels : 2
Range : ± 10 mV to ± 10 V in 10 steps
Coupling : AC,   DC,   IEPE Accelerometer with 15 V, 4 mA supplies
Impedance : 1 MΩ
Dynamic Range : 70 dB
Sensitivity Range : 130 dB
 

Analysis


Base band Frequency : DC - 25 kHz to DC - 40 kHz in 10 ranges
Zoom Analysis : up to x 80 in 1 : 2 : 5 sequence
Maximum Sample Rate : 102.4 kHz
Real Time Bandwidth : 20 kHz max, single channel and 10 kHz max, dual channel
Resolution : 100 : 200 : 400 : 800 : 1600 line spectra
Windowing : Rectangular, Hanning, Flat top, Force and Exponential
Averaging Time : up to 4096
Averaging Process : up to 4096 Linear, Exponential, Peak
Amplitude Accuracy : ± 0.5 dB typical
 

Process Function


Time Domain : Ch1 : Ch2 : Ch1-Ch2 : Both
Spectrum : Ch1 : Ch2 : Both
RMS
Cross Correlation
Transfer Function
Coherence
Power Spectral Density
Cross Spectrum
Octave 1/1 and 1/3 synthesized
Spectrum and Octave Calibration
 

Triggering


Modes : Normal : Free run : Single shot
Level : Variable with resolution of 1 part in 200, + or - slope. Ch1, Ch2 relative delay
Trigger Point : Pre and post trigger, set by number of points before and after trigger point
Trigger Source : Internal or external +5 V TTL
Sample Clock Source : Internal or external +5 V TTL or generated internally via phase locked loop from external trigger
 

Display


Formats : Single trace : Dual trace : Waterfall up to 99 traces : Orbit
Resolution : 320 x 240 pixels
Type : High contrast LCD. Alphanumeric/graphic with back light
Cursors : Single X and Y readout : Harmonic up to 200 : Side band : Peak search
Scaling : Manual. Automatic calculation of engineering units, EUs
EU Display Formats : G : m/sec : m(Metric). G : in/sec : mils (English). User defined
 

Data Storage

Record and Setup Storage capability to
Memory Card : Up to 2 Mbyte removable memory
Internal SRAM : Internal 512 Kbytes non volatile. Static RAM
Typical capacity of internal memory is 200 (200 line) spectra
 

Interface


RS-232C : File transfer to host computer. Variable baud rate to 38400
Memory Card : Data storage capability. JEIDA / PCMCIA standard
 

General


Battery Type : Ni cd rechargeable battery. Charger/Mains power adaptor is supplied
Time between charge : 6 hours continuous running, typical
Memory back up : Lithium cell up to 10 years
Weight : 3 kg
Size : 313 mm x 215 mm x 93 mm approx
Operating Temperature : 0 °C to 50 °C
 
E&OE - specifications subject to change without notice.

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