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SIRIUS

® 

TECHNICAL REFERENCE MANUAL 

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5.19. HS-CHG / HS-CHG+ 

The CHG modules are perfect for high-speed, high-sample-rate, wide-bandwidth charge measurements           

anl also sound and vibration IEPE channels. 

5.19.1. HS-CHG: Speciﬁcations 

Inputs 

Input types 

Voltage 

IEPE 

Charge 

ADC Type 

16-bit SAR 

Sampling Rate 

Simultaneous 1 MS/sec 

Filtering 

See "HS general speciﬁcations" 

Analogue 

bandwidth (see 1) 

500 kHz 

Voltage ranges 

±10, ±5, ±2, ±1, ±0.5, ±0.2, ±0.1 Volt 

Input Accuracy 

Signal frequency 

Accuracy 

DC 

±0.05 % of reading ±0.02 % of range ±50 μV 

up to 10kHz 

±0.1 % of reading ±0.05 % of range 

up to 100kHz 

±2 % of reading ±0.1 % of range 

Typ. Noise ﬂoor 

Bandwidth/Range → 

10 V 

5 V 

1 V 

0.1 V 

1 MHz 

-88 dB 

-87 dB 

-85 dB 

-68 dB 

100 kHz 

-89 dB 

-88 dB 

-83 dB 

10 kHz 

<-100 dB 

-92 dB 

Typical CMR 

50 Hz / 1 kHz 

>140 / 120 dB 

>140 / 124 dB 

>140 / 126 dB 

Gain Drift 

Typical 10 ppm/K, max. 30 ppm/K 

Offset Drift 

Typical 0.5 μV/K + 10 ppm of range/K, max 3 μV/K + 20 ppm of range/K 

Gain Linearity 

<0.02 % 

Inter Channel 

Phase-mismatch 

0.02° * ﬁn [kHz] + 0.1° 

Channel Cross talk 

-110 dB @ 1 kHz; -90 dB @ 10 kHz 

Input Coupling 

DC or AC (0.1 Hz, 1 Hz, 10 Hz or 100 Hz) 

Input Impedance 

1 MΩ / 100 pF 

Overvoltage 

Protection 

50 V continuous; 200 V peak (10 msec) 

IEPE mode 

Excitation 

4 or 8 mA 

Compliance voltage 

25 Volt 

Output Impedance 

>100 kΩ 

Sensor detection 

Shortcut: <4 Volt; Open: >19 Volt 

Charge ranges 

±100 000, 50 000, 20 000, 10 000, 5000, 2000, 1000 pC 

Input Accuracy 

±0.5 % of reading ±0.05 % of range ±2 pC 

Input Coupling 

0.01 Hz, 0.03 Hz, 0.1 Hz, 0.5 Hz, 1 Hz, 10 Hz or 100 Hz 

Counters (only on HS-CHG+ type) 

Inputs 

1 digital counter input 

3 digital inputs 

SIRIUS

V20-1 231 / 336  

Brand	DEWESOFT
Model	SIRIUS Series
Category	Data Loggers
Language	English

DEWESOFT SIRIUS Series User Manual

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