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Strain gauge factor
|
2 to 256 mV/V, configurable using software
|
|
Connection
|
4- or 6-wire connections
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Input type
|
Differential, used to evaluate a full-bridge strain gauge
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|
Digital converter resolution
|
24-bit
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|
Conversion time
|
Depends on the configured data output rate
|
|
Data output rate
|
2.5 to 7,500 samples per second, configurable using software (fDATA)
|
|
Input filter
|
|
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Cutoff frequency
|
5 kHz
|
|
Order
|
3
|
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Slope
|
60 dB
|
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ADC filter characteristics
|
Sigma-delta, see section "Filter characteristics of the sigma-delta A/D converter"
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|
Operating range / Measurement sensor
|
85 to 5,000 Ω
|
|
Influence of cable length
|
See section "Calculation example", sensor cable length: Max. 30 m
|
|
Input protection
|
RC protection
|
|
Common-mode range
|
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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Conversion procedure
|
Sigma-delta
|
|
Output of digital value
|
|
|
Broken bridge supply line
|
Value approaching 0
|
|
Broken sensor line
|
Value approaching ±end value (status bit "Line monitoring" is set in register "Module status")
|
|
Valid range of values
|
0xFF800001 to 0x007FFFFF (-8,388,607 to 8,388,607)
|
|
Strain gauge supply
|
|
|
Voltage
|
5.5 VDC / Max. 65 mA
|
|
Short-circuit and overload-proof
|
Yes
|
|
Voltage drop for short-circuit protection
|
Max. 0.2 VDC at 65 mA and 25°C
|
|
Quantization
|
|
|
LSB value (16-bit)
|
|
|
2 mV/V
|
336 nV
|
|
4 mV/V
|
671 nV
|
|
8 mV/V
|
1.343 μV
|
|
16 mV/V
|
2.686 μV
|
|
32 mV/V
|
5.371 μV
|
|
64 mV/V
|
10.74 μV
|
|
128 mV/V
|
21.48 μV
|
|
256 mV/V
|
42.97 μV
|
|
LSB value (24-bit)
|
|
|
2 mV/V
|
1.31 nV
|
|
4 mV/V
|
2.62 nV
|
|
8 mV/V
|
5.25 nV
|
|
16 mV/V
|
10.49 nV
|
|
32 mV/V
|
20.98 nV
|
|
64 mV/V
|
41.96 nV
|
|
128 mV/V
|
83.92 nV
|
|
256 mV/V
|
167.85 nV
|
|
Max. gain drift
|
12 ppm/°C
|
|
Max. offset drift
|
2 ppm/°C
|
|
Nonlinearity
|
<10 ppm
|
