Strain gauge factor
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2 to 256 mV/V, configurable using software
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Connection
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4- or 6-wire connections
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Input type
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Differential, used to evaluate a full-bridge strain gauge
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Digital converter resolution
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24-bit
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Conversion time
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Depends on the configured data output rate
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Data output rate
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0.1 - 7500 samples per second, configurable using software (fDATA)
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Input filter
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Cutoff frequency
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5 kHz
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Order
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3
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Slope
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60 dB
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ADC filter characteristics
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Sigma-delta, see section "Filter characteristics of the sigma-delta A/D converter"
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Operating range / Measurement sensor
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162 to 5000 Ω
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Influence of cable length
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See section "Calculation example".
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Input protection
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RC protection
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Common-mode range
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0 to 3 VDC Permissible input voltage range (with regard to the electric potential strain gauge GND) on inputs "Input +" and "Input -"
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Insulation voltage between input and bus
|
500 Veff
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Conversion procedure
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Sigma-delta
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Output of digital value
|
|
Broken bridge supply line
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Value approaching 0
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Broken sensor line
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Value approaching ±end value (status bit "Line monitoring" is set in register "Module status")
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Valid range of values
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0xFF800001 to 0x007FFFFF (-8,388,607 to 8,388,607)
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Strain gauge supply
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|
Voltage
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10.5 VDC / Max. 65 mA
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Short-circuit and overload-proof
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Yes
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Voltage drop for short-circuit protection
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Max. 0.2 VDC at 65 mA and 25°C
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Quantization
|
|
LSB value (16-bit)
|
|
2 mV/V
|
641 nV
|
4 mV/V
|
1.28 µV
|
8 mV/V
|
2.56 µV
|
16 mV/V
|
5.13 µV
|
32 mV/V
|
10.25 μV
|
64 mV/V
|
20.51 μV
|
128 mV/V
|
41.02 μV
|
256 mV/V
|
82.03 μV
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LSB value (24-bit)
|
|
2 mV/V
|
2.50 nV
|
4 mV/V
|
5.01 nV
|
8 mV/V
|
10.01 nV
|
16 mV/V
|
20.03 nV
|
32 mV/V
|
40.05 nV
|
64 mV/V
|
80.11 nV
|
128 mV/V
|
160.22 nV
|
256 mV/V
|
320.43 nV
|
Temperature coefficient
|
|
Rev. ≥E0
|
10 ppm/°C
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Rev. <E0
|
30 ppm/°C
|