X20 system modules • Analog input modules • X20AI1744, X20AI1744-3
130
X20 system User's Manual 3.10
Product ID
X20AI1744
X20AI1744-3
Connection
4- or 6-wire connections
2)
Input type
Differential, used to evaluate a full-bridge strain gauge
Digital converter resolution
24-bit
Conversion time
Depends on the configured data output rate
Data output rate
2.5 - 7500 samples per second, configurable using software (f
DATA
)
Input filter
Cutoff frequency
5 kHz
5 Hz
Orderliness
3
Slope
60 dB
ADC filter characteristics
Sigma-Delta, see section "Filter characteristics of the Sigma-Delta ADC"
Operating range / Measurement sensor
85 to 5000 Ω
Influence of cable length
The shielded, twisted pair cable should be as short as possible and run sepa-
rately to the sensor (isolated from load circuit) without intermediate terminals
Input protection
RC protection
Input current
690 nA
Common-mode range
0 to 3 VDC
Permissible input voltage range (with regard to the poten-
tial strain gauge GND) on the inputs "Input +" and "Input -"
Isolation voltage between input and bus
500 V
eff
Conversion procedure
Sigma-Delta
Output of the digital value
Broken bridge supply line
Value approaches 0
Broken sensor line
Value approaches ±end value (Status bit "open circuit" in register
Module status
is set)
Valid value range
0x007FFFFF to 0xFF800001
Strain gauge supply
Voltage
5.5 VDC / max. 65 mA
3)
Short circuit protection, overload protection
Yes
Voltage drop for short circuit protection
Max. 0.2 VDC at 65 mA
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
Temperature coefficient
Rev. ≤D1
30 ppm/°C
Rev. ≥E0
10 ppm/°C
Operating conditions
Mounting orientation
Horizontal
Yes
Vertical
Yes
Installation at altitudes above sea level
0 to 2000 m
No limitations
>2000 m
Reduction of ambient temperature by 0.5°C per 100 m
Protection in accordance with EN 60529
IP20
Environmental conditions
Temperature
Operation
Horizontal installation
0 to 55°C
Vertical installation
0 to 50°C
Derating
-
Storage
-25 to 70°C
Transport
-25 to 70°C
Relative humidity
Operation
5 to 95%, non-condensing
Storage
5 to 95%, non-condensing
Transport
5 to 95%, non-condensing
Table 19: X20AI1744, X20AI1744-3 - Technical data
Summary of Contents for X20 System
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