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SIRIUS

® 

TECHNICAL REFERENCE MANUAL 



Sense Impedance to Exc 

/ to GND 

100 kΩ / >100 MΩ 

Current limit 

100 mA (max. 800 mW) 

Protection 

Continuous short to ground 

Excitation Current 

STGv2 

STGv3 

Excitation Current 

Free programmable (16-bit DAC) 

Predeﬁned levels 

0.1, 1, 2, 5, 10, 20 and 60 mA DC 

Ranges 

0.1 - 10 mA 

10 - 60 mA 

0.01 - 1 mA 

1 - 60 mA 

Accuracy 

0.1 % ±2 μA 

0.5 % ±50 μA 

preview 

0.02 % ±2 μA 

preview 

0.25 % ±20 μA 

Drift 

15 ppm/K 

100 ppm/K 

preview 

15 ppm/K 

preview 

100 ppm/K 

Compliance voltage 

20 Volt, max. 500 mW 

Output Impedance 

>1 MΩ 

Bridge Connection Types 

Bridge types 

Full / Half / Quarter bridge (3-wire or 4-wire) 

Ranges 

2 mV/V…1000 mV/V free programmable with Dual Core 

Internal Bridge 

Completion 

Half and Quarter bridge 120 Ω and 350 Ω 

Typ. Bridge Completion 

Accuracy 

0.05 %; TCR: 2 ppm/K (others on request) 

Internal Shunt Resistor 

59.88 kΩ, 175 kΩ, software selectable (others on request) 

Typ. Shunt Resistor 

Accuracy 

0.05 %; TCR: 10 ppm/K (others on request) 

Input Short, Sensor 

Offset Adjust 

Software selectable 

Counters (only on STG+ type) 

Inputs 

1 digital counter input 

3 digital inputs 

Fully synchronised with analog data 

Alarm output 

Counter Modes 

counting, waveform timing, encoder, tacho, gear-tooth sensor 

General Counter 

Speciﬁcations 

See "SIRIUS counter speciﬁcations" 

Additional Speciﬁcations 

Input connector 

DSUB-9, 8-pin LEMO-2B, 16-pin LEMO-2B (others on request) 

TEDS support 

Standard + DSI® adapters 



 

SIRIUS

V20-1 188 / 336  

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

DEWESOFT SIRIUS Series User Manual

Table of Contents

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DEWESOFT SIRIUS Series Specifications

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