VIDITECH Vibrodiag, User Manual, Page: 4 / 27

VIBRODIAG
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3
2 Specifications
2.1 Evaluating unit
Instrument type portable, two-channel
Supply voltage 15V DC
Battery type Li-pol, 1100 mAh, 3 hours of operation
Consumption 3,5W normal operation
20 W charging
Operation
temperature
0 to +65
◦
C
Protection IP52
Chassis material plastic
Dimensions ca. 80 x 135 x 29 mm (W x H x D)
Weight 300 g
Sensor connectors M8 circular connectors
Sensor type ICP, 50 mV/g – 4000 mV/g
Input impedance 27 kΩ ± 10 % (at 80 Hz)
Display type colour touch TFT
Display diagonal
3,4"
Memory card type SD
PC connection USB 2.0
2.2 Accuracy
Total vibrations
at 80 Hz: ±2 % ±1 digit
within range 1… 5.000 Hz: ±10 % ±1 digit
at limit frequencies: +10 %… – 20 % ± 1 digit
Frequency characteristic slope 40 dB/dec high pass
slope 40 dB/dec low pass
Revolutions 10… 12000 RPM, ±1 % ± 5 digit
FFT analysis of total
vibrations
frequency indication within range 1… 5.000 Hz: ±1,8 H z (±0,5 Hz)
amplitude indication: +5 %… –20 %
FFT window type Rectangle / Hamming
FFT total noise +5 % +5 digit
2.3 Sampling parameters
Velocity analysis sampling frequency: 2,5 kHz
Number of lines 4096 => freq. step: 2500 Hz/(2*4096) = 0,3 Hz
Acceleration analysis sampling frequency: 15 kHz
Number of lines 4096 => freq. step: 15000 Hz/(2*4096) = 1,8 Hz