Atec Dewetron-DEWE2_DatatsheetЙ - Manual (Page 30)

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30
Differential universal input module
Sampling: 24 bit; 204.8 kS/s per channel
Input types: Voltage up to ±10 V
Strain gauge, bridge sensor, piezoresistive bridge
IEPE
RTD; Pt100 to Pt2000
Resistance, potentiometer
TRION-2402-dSTG
TRION-2402-dSTG-8-RJ TRION-2402-dSTG-8-D TRION-2402-dSTG-6-LEMO
TRION-dSTG specifications
Input channels 8 using RJ-45 sockets (TRION-2402-dSTG-8-RJ)
8 using DSUB 9 sockets (TRION-2402-dSTG-8-D)
6 using LEMO 1B sockets (TRION-2402-dSTG-6-LEMO)
Sampling rate 204.8 kS/s per channel
Resolution 24 bit
Input ranges
Voltage ±10, 30, 100, 300 mV, 1 V, 3 V, 10 V
Bridge 1, 3, 10, 30, 100, 300, 1000 mV/V or mV/mA
IEPE ±100, 300 mV, 1V, 3V, 10V
Resistance 10, 30, 100, 300 Ω, 1, 3, 10, 30 kΩ
Current Depending on external Shunt
Voltage input accuracy ±0.02 % of reading ± 0.02 % of range ±20 μV
Gain drift typical 10 ppm/°C max. 20 ppm/°C
Offset drift typical 0.3 μV/°C+ 10 ppm of range, max 2 μV/°C + 20 ppm of range
linearity typical 0.01 %
Input impedance 100 MΩ
Input bias current < 1 nA
Input configuration Single ended or differential (programmable)
Input coupling DC, AC (0.16 Hz, 0.5 Hz, 3.4 Hz, 10 Hz); max. DC voltage when AC coupled: 50 V
Excitation voltage 0 to 13.5 V
DC
(programmable, 1 mV steps), 100 mA max. current, max 8 W per module
Accuracy ±0.03 % ±1 mV
Drift ±10 ppm/K ±50 μV/K
Current limit 100 mA
Protection Continuous short to ground
Excitation current 0.2 to 25 mA
DC
(pogrammable, 1 mV steps)
Accuracy 0.05% ±2 μA
Drift 15 ppm/°C
Compliance voltage 10 V
Output impedance >10 MΩ
IEPE Excitation 4 mA ±10 %
Compliance voltage 22 V
Supported sensors 4- or 6-wire full bridge
3- or 5-wire ½ bridge with internal completion (software programmable)
3- or 4-wire ¼ bridge with internal resistor for 120 and 350 Ω (software programmable)
4-wire full bridge with constant current excitation (piezoresistive bridge sensors)
Potentiometric; Resistance
Resistance Temperature Detection: Pt100, Pt200, Pt500, Pt1000, Pt2000 (software linearization)
IEPE (fixed 4 mA excitation)
Bridge resistance 80 Ω to 10 kΩ @ ≤ 5 V
DC
excitation
Shunt calibration Two internal shunt resistors 50 kΩ and 100 kΩ
Shunt and completion resistor accuracy 0.05 % ±15 ppm/K
Automatic bridge balance ±250 % of Range
Typical SNR Range 10 mV 100 mV 1 V 10 V
100 S/s ≤ fs ≤ 1 kS/s 82 dB 101 dB 111 dB 112 dB
10 kS/s < fs ≤ 102.4 kS/s 72 dB 92 dB 104 dB 107 dB
102.4 kS/s < f ≤ 200 kS/s 69 dB 80 dB 81 dB 81 dB
Spurious free dynamic range 10 mV 100 mV 1 V 10 V
100 S/s ≤ fs ≤ 1 kS/s 108 dB 128 dB 141 dB 141 dB
10 kS/s < fs ≤ 102.4 kS/s 103 dB 123 dB 134 dB 136 dB
102.4 kS/s < f ≤ 200 kS/s 99 dB 120 dB* / 106 dB 133 dB* / 106 dB 135 dB* / 106 dB
Typical CMRR 90 dB @ 1 KHz 80 dB @ 10 KHz
Low pass Filter (in DEWESoft 7™, digital) 10 Hz, 30 Hz, 100 Hz, 300 Hz, 1 kHz, 3 kHz, 10 kHz, 30 kHz, Off
Characterisic Bessel or Butterworth
Filter order 2 nd , 4 th , 6 th , 8 th
Analog anti aliasing filter 2 nd order Bessel, automatically set by sample rate
Sample rate ≤ 1k S/s 2.5 kHz (-3 dB), 1.5 kHz (-1 dB)
Sample rate ≤ 10 kS/s 25 kHz (-3 dB), 15 kHz (-1 dB)
Sample rate > 10kS/s 250 kHz (-3 dB), 150 kHz (-1 dB)
Bandwidth (-3 dB digital filter)
1 kS/s ≤ fs ≤ 51.2 kS/s 0.494 fs
51.2 kS/s < fs ≤ 102.4 kS/s 0.49 fs
102.4 kS/s < fs ≤ 204.8 kS/s 0.38 fs
Series Modules