DEWESOFT SIRIUS Series User Manual

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SIRIUS
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TECHNICAL REFERENCE MANUAL 
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6.1.5.2. ADC digital filter and oversampling 
SIRIUS® will automatically adjust the oversampling depending on the sample rate. 
The digital filter cut off frequency is automatically set to half of the sample rate and the internal                  
sampling frequency is up to 256 times higher than the output rate: 
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Digital Filter (vs. Sample Rate) 
0.1 ... 51.2 kS/s 
51.2 ... 102.4 kS/s 
102.4 ... 204.8 kS/s 
Bandwidth (-3 dB) 
0.494 fs 
0.49 fs 
0.38 fs 
Alias-free Bandwidth 
DC to 0.42 fs 
DC to 0.32 fs 
DC to 0.22 fs 
Alias Rejection 
-95 dB 
-92 dB 
-97 dB 
Delay through ADC 
12 / fs 
9 / fs 
5 / fs 
Oversampling 
256 
128 
64 
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The filter characteristics of the digital ADC filter will also change automatically depending on the               
sample rate. 
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Sample rate 100 Hz to 51.2 kHz stopband rejection 
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SIRIUS
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V20-1 282 / 336  

DEWESOFT SIRIUS Series Specifications

General

Category	Data Loggers
Manufacturer	DEWESOFT
Series	SIRIUS
Resolution	24-bit
Interface	USB, EtherCAT
Software	DEWESoft X
Channels	Expandable
Sampling Rate	Up to 200 kS/s per channel
Input Types	Voltage, Current, IEPE, Strain, Thermocouple, RTD, Resistance, Digital, Counter
Input Voltage Range	±10 V, ±200 V
Isolation	Channel-to-channel and channel-to-ground
Connectivity	Ethernet, USB
Operating Temperature	-10 °C to +50 °C
Storage Temperature	-20 °C to +70 °C
Power Supply	10 to 30 V DC
Dimensions	Varies depending on module configuration
Weight	Varies depending on module configuration
Analog Inputs	Yes, depending on module configuration