DEWESOFT SIRIUS Series User Manual

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SIRIUS
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TECHNICAL REFERENCE MANUAL 
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Example 
When sampling with 100 kHz measuring a signal with 10 Khz bandwidth. Sirius will still sample                
the data with 1 MHz, analog LP filter will attenuate all signal frequencies above 400 kHz for at                  
least 60dB, making sure that below 100 kHz the data will be alias free. After that the digital filter                   
will give the wanted bandwidth and in the last stage the data, already alias free, will be                 
downsampled to 100 kHz. 
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Important 
The FIR anti-aliasing filter was introduced in DEWESoft® X2 SP10. This filter has a very narrow,                
user defined transition band and has zero phase distortion in the pass-band region. 
In DEWESoft® X3 SP1 these anti-aliasing filters have been further updated, so that they are also                
active, when the sampling rate is above 100 kHz (this wasn’t possible in the older versions of                 
DEWESoft®) and can be active, when we are using any of the IIR software filters. 
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Illustration below “ Enabling the AAF when IIR filters are used “ shows the new advanced setting, which                
enables the anti-aliasing filters, when IIR filters are selected. 
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Enabling the AAF when IIR filters are used 
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SIRIUS
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V20-1 290 / 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