DEWESOFT SIRIUS-SBOXe - Hd-Stgs; HD-STGS: Specification

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SIRIUS

® 

TECHNICAL REFERENCE MANUAL 



5.17. HD-STGS 



The STGM module is a universal ampliﬁer perfectly ﬁtting for high-count strain gage and voltage               

measurements. 

5.17.1. HD-STGS: Speciﬁcation 

Inputs 

Input types 

Voltage 

Full/Half/Quarter bridge strain (120 Ω and 350 Ω) 

Potentiometer 

Current (ext. Shunt) 

ADC Type 

24-bit delta-sigma with anti-aliasing ﬁlter 

Sampling Rate Simultaneous 

200 kS/sec 

Ranges 

±10 V 

±1 V 

±100 mV 

±10 mV 

Gain Accuracy 

±0.05 % of reading 

Offset Accuracy 

±2 mV 

±0.2 mV 

±0.1 mV 

Offset Accuracy after Balance 

Ampliﬁer 

±0.2 mV 

±0.02 mV 

±0.01 mV 

Dynamic Range @ 10 kS 

-137 dB 

-130 dB 

-112 dB 

Typ. Noise ﬂoor @ 10 kS 

-105 dB 

-104 dB 

-95 dB 

-75 dB 

Typ. CMR @ 400 Hz / 1 kHz 

86 / 84 dB 

96 / 95 dB 

112 / 102 dB 

Gain Drift 

Typical 10 PPM/K, max. 40 PPM/K 

Offset Drift 

Typical 0.3 μV/K + 5 ppm of range/K, max 2 μV/K + 10 ppm of range/K 

Gain Linearity 

<0.02 % 

Inter Channel Phase-mismatch 

0.02° * ﬁn [kHz] + 0.1° (@ 200 kS/sec) 

Channel Cross talk 

-120 dB @ 10 kHz 

Input Coupling 

DC 

Input Impedance 

10 MΩ 

Max. common mode voltage 

±12 V 

Overvoltage Protection 

In + to In-: 50 V continuous; 200 V peak (10 msec) 

Excitation Voltage 

Free programmable (16-bit DAC) 

Predeﬁned levels 

0, 1, 2.5, 5, 10 and 12 VDC 

Accuracy 

±0.05 % ±2 mV 

Drift 

±50 ppm/K ±100 μV/K 

Stability 10 % to 90 % load 

<0.01 % 

Current limit 

45 mA (350 mW max. power) 

Protection 

Continuous short to ground 

Bridge Connection Types 

Bridge types 

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

Ranges 

2 mV/V…1000 mV/V free programmable 

Internal Bridge Completion 

½ bridge and ¼ bridge 120 Ω and 350 Ω 

Bridge Completion Accuracy 

0.05 %; TCR: 5 ppm/K (others on request) 

Internal Shunt Resistor 

100 kΩ (others on request) 

SIRIUS

V20-1 218 / 336  

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DEWESOFT SIRIUS-SBOXe - Hd-Stgs; HD-STGS: Specification

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