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JEA24
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JEA247
.jpg) new generation
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A/D
Resolution real
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24 bit using Delta-Sigma A/D converter
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24 bit using Delta-Sigma A/D converter
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Available Channels
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12,24,36,48,96, up to 240
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12,24,36,48,96, up to 240
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Number of sample/trace
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256,512,1024,2048,4096,8192
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256, 512, 1024, 2048, 4096, 8192
16384, 32768, 65536, 131072
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Sample rate (msec)
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250, 500, 1000, 2000, 4000, 8000,
16000, 32000
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as per JEA 24 + 64000
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Avaraging
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Always sampling at 32 KHz
then avaraging for noise reduction
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Always sampling at 32 KHz
then avaraging for noise reduction
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Sampling interval
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From 0,03125 ms up to 32 sec
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From 0,03125 ms up to 32 sec up to 65 sec at 4 KHz
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Frequence response
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1,85 Hz to 4000 Hz
for this application
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1,85 Hz to 20 KHz
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Delay Time
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up to 8K samples
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up to 8K samples
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Input Gain Remotely software selectable
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0 db, 6 db, 12db, 18db
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up to 60 db
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Time standard Accuracy
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0,005%
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0.005%
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Gain Accuracy
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+/- 0,2%
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+/- 0,2%
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Input Impedence
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Matched to sensor
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Matched to sensor
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Cross talk
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not evaluable
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not evaluable
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Max input signal
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+/- 2V at 0 db gain
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+/- 2V at 0 db gain
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Anti alias filter
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4 KHz 6 db/octave
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4 KHz 6 db/octave
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Digital filter
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Low Pass, Hight Pass Band Pass Multiple
(LC-HC Automatic gain
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Low Pass, Hight Pass Band Pass Multiple (LC-HC Automatic gain
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Notch
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50Hz - 60 Hz
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50Hz - 60 Hz
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Nyquist frequency
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16 KHz
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16 KHz
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Dinamic Resolution
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117 db
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147 db
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Crossfeed isolation
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100db
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100db
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THD noise
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Less 97 db
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Less 97 db
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Recording Format
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root xxxx1000.SU exension
es: best1000.SU & SEGY
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root xxxx1000.SU exension es: best1000.SU & SEGY
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Input protection
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Analog filter & diode
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Analog filter & diode
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Operating temperature
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0°- 50°
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0°- 50°
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Power Supply
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24 V Gel Battery MOM Unit
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12 V Gel Battery
MOM Unit
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Connectors
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DLG 8
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DLG 7
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PC Port
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USB 1.0
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USB 1.0
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Baud Rate
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800.000 bit/sec
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12 Mb/sec
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Triggering
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Contact closure + on JEA board
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Contact closure +/- TTL on JEA board
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System, Software
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Runs under Windows XP -
Vista operating system
JEA Panel Acq.
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Runs under Windows XP - Vista operating system JEA Panel Acq.
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Warranty
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3 years
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3 years
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Display True Amplitude - Normal -
Average Trace Equalization-
Noise monitor - triggering - zoom - reset - reverse polarity
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Display True Amplitude - Normal -
Average Trace Equalization-
Noise monitor - triggering - zoom - reset - reverse polarity
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.jpg)
