| System |
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Carrying Case Size |
58 x 36 x 19 cm (23 x 14 x 7.5 in) approx. |
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Weight |
11 kg (24 lb) approx. including typical laptop PC. |
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| Laptop Personal Computer |
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Processor |
2.53GHz Dual Core Pentium min (or equivalent) |
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Memory |
2GB rec. |
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Free Hard Disc |
120GB typ. |
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Optical Drive |
CD/DVD reader (DVD+R compatible) |
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Operating System |
Windows XP/Vista/7 |
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| Core System: SC11/SI/USB (Sensor Interface) |
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Inputs |
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MAG1, MAG2 |
3-axis magnetic field sensor (2 x SC20 sensor) |
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VIB1, VIB2, VIB3 |
3-axis vibration (3 x Wilcoxon 731A) |
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MIC |
Precision microphone (Brüel & Kjær, 4190/2669L) |
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AUX |
BNC voltage input, DC coupled, ±10 V range, 100 kΩ input impedance |
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Anti-aliasing filters |
20 kHz |
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Power |
100 - 240 V AC, 50 - 60 Hz, 0.25A max |
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| 3-axis Magnetic Field Sensor: SC20/DCMR |
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Co-ordinate System |
X, Y, Z rectangular Cartesian |
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Bandwidth |
DC - 10 kHz |
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Ambient Field Range |
±2 G (±200 µT) |
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Dynamic Range |
±20 mG (2 µT) |
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Noise Limit |
DC: 5 µG (0.5 nT) Pk-Pk typ. (0.0001 - 0.01 Hz) |
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AC: 0.1 µG/√Hz (10 pT/√Hz) RMS typ. at 50 Hz |
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Accuracy |
±1 % (after >2hour warm up). (±5 % cold) |
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| 3-axis Magnetic Field Sensor: SC20/AC |
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Co-ordinate System |
X, Y, Z rectangular Cartesian |
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Bandwidth |
5 Hz - 20 kHz |
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Dynamic Range |
40 mG (4 µT) Pk-Pk |
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Noise Limit |
1 µG (100 pT) RMS over 25Hz-20kHz band |
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Accuracy |
±1 % |
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| 3-axis Magnetic Field Sensor: SC20Fast/AC |
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Co-ordinate System |
X, Y, Z rectangular Cartesian |
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Bandwidth |
25 Hz - 20 kHz |
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Dynamic Range |
40 mG (4 µT) Pk-Pk |
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Noise Limit |
1 µG (100 pT) RMS over 25Hz-20kHz band |
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Accuracy |
±1 % |
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| Vibration Sensor: Wilcoxon 731A Accelerometer |
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Type |
Wilcoxon Research, model 731A |
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Bandwidth |
0.1 - 500 Hz |
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Dynamic Range |
2 m/s2 (0.2g'sα) Pk-Pk (in this system) |
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Noise Limit |
7 µm/s2 RMS max. |
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0.35 µm/s RMS at 1Hz, 0.11 µm/s RMS at 5Hz |
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0.07 µm RMS at 1Hz, 0.0035 µm RMS at 5Hz |
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Accuracy |
±5 % (with gain calibration file) |
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| Acoustic Sensor: B&K 4190/2669L Precision Microphone |
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Type |
Brüel & Kjær, Condenser microphone 4190, Pre-amplifier 2669L |
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Bandwidth |
1.5 Hz - 20 kHz |
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Dynamic Range |
110 dB (in this system) |
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Noise Limit |
20 dB (in this system) |
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Accuracy |
±1 dB 3 Hz - 20 kHz |
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| Programs (General) |
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Channel modes |
4 channel & 8 channel |
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Channels |
4 channel mode X, Y, Z, A
8 channel mode X1, Y1, Z1, A1, X2, Y2, Z2, A2 |
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Clipping |
Audio/visual indication |
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Pause control |
Freeze/resume instrument operation |
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Calibration panel |
Set channel mode, Add/select sensors, set ranges, calibrate offsets, microphone self check, add/edit user defined units, set export file options. |
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Setup file |
Open/save instrument controls |
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Export |
Export results for SCplot or spreadsheet |
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Print window |
Print current screen display |
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Help |
Context help on controls, online help file |
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| Oscilloscope |
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Amplitude Units |
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Magnetic Field |
mG, nT, µT, mA/m, A/m |
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Vibration |
µg'sα, mg'sα, µm/s2, mm/s2 |
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Acoustic |
mPa, Pa |
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Voltage |
mV, V, user defined units |
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Resultant |XYZ| |
Magnetic Field, Vibration, Voltage units |
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Time ranges (ms) |
0.5, 1, 2, 5, 10, 20, 50, 100, 200, 500, 1000, 2000 |
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Bandwidth (Hz) |
20,000 for time ranges 0.5, 1, 2, 5
At least 100,000/(time range) for other time ranges |
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Digital Meter |
RMS, Peak to Peak (all channels) |
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Trigger |
Auto/Manual level, +/- edge, source, one-shot |
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Capture indicator |
Indicates progress of data acquisition |
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| Spectrum Analyser |
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Displays |
Waveform (autoscaling), Spectrum |
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Select |
Highlight and attach cursor to selected signal |
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Amplitude units |
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Magnetic field |
mG, nT, µT, mA/m, A/m |
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Vibration |
µg'sα, mg'sα, µm/s2, mm/s2, µm/s, mm/s, nm, µm |
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Acoustic |
mPa, Pa, dB, dBa, dBC |
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Voltage |
mV, V, user defined units |
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Resultant |XYZ| |
Magnetic Field, Vibration, Voltage units |
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Amplitude ranges |
1, 2, 5, 10, 20, 50, 100, 200, 500, log full scale |
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Frequency ranges |
20, 25, 30, 40, 50, 60, 80, 100, 120, 160, 200, 250, 300, 400, 500,
600, 800, 1000, 1200, 1600, 2000, 2500, 3000, 4000, 5000, 6000,
8000, 10000, 12000, 16000β, 20000, Hz full scale |
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Number of points |
200, 250γ, 400, 500γ, 800, 1000γ, 1600, 2000γ, 3200β, 4000β |
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Accuracy |
Frequency: ±0.01% ±0.02 div |
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Waveform windows |
None, Hanning, Flat top |
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Waveform windows |
None, Hanning, Flat top |
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Spectrum modes |
RMS, 0-Pk, Pk-Pk, PSD, Third Octave (RMS, 0-Pk, Pk-Pk) |
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Combine spectra |
Average/Peak, Max no. spectra |
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Cursor modes |
Total RMS between 2 tracking cursors, 10 harmonic cursors |
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Capture indicator |
Indicates progress of data acquisition |
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Specification files |
Create, edit, add & remove. Compare with measurements. |
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Data logging |
Start: Now, At time, Triggered by flat level, Triggered by spec |
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Stop: Period, File size, Disk space |
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Min. time step: 1 minute |
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| Chart Recorder |
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Position |
Set or zero vertical positions |
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Amplitude units |
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Magnetic field |
mG, nT, µT, mA/m, A/m |
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Vibration |
µg'sα, mg'sα, µm/s2, mm/s2, µm/s, mm/s, nm, µm |
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Acoustic |
mPa, Pa, dB, dBA, dBC |
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Voltage |
mV, V, user defined units |
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Resultant |XYZ| |
Magnetic Field, Vibration, Voltage units |
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Page length |
5, 10, 25, 50, 100, 250, 500 s |
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Chart length |
20 Pages |
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Max Bandwidth |
(Bandwidth may be reduced by bandwidth controls) |
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Magnetic field |
DC - 2.5δ kHz for Sensor SC20/DCMR
5 Hz - 2.5δ kHz for Sensor SC20/AC
25 Hz - 2.5δ kHz for Sensor SC20Fast/AC |
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Vibration |
0.1 Hz - 500 Hz |
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Acoustic (Precision Microphone) |
1.5 Hz - 2.5δ kHz |
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Voltage |
DC - 2.5δ kHz |
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Bandwidth controls |
XYZ/A upper/lower for all modes except narrow band |
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Narrow band filter |
Centre frequency, f0 range: 1 Hz - 1250 Hz
Accuracy: ±1% within pass band (f0 ± 3%)
Attenuation: 60 dB min. in stop band (f0 ± 20%) |
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Chart modes |
Waveform, RMS, Peak to Peak, Narrow band RMS, Narrow band Pk-Pk. |
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Markers |
Time, text string |
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Clear |
Clear chart data |
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Buffer indicator |
Indicates state of data acquisition buffer |
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Update modes |
Page, scroll |
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Chart palette |
Pan, zoom, format, reset and clear chart |
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Data logging |
Start: Now, At time, Triggered
Stop: Period, File size, Disk space
Log rate limit, time step: ≥ (page length)/500 |
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| α g’s are units of the acceleration due to gravity |
| β 4 Channel mode only |
| γ Not available on 20000 Hz range in 8 channel mode |
| δ 1.25 kHz in 8 channel mode |
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