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B&R X20cAI1744
1 full-bridge strain gauge inputData output rate configurable from 0.1 Hz to 7.5 kHzSpecial operating modes (synchronous mode and multiple sampling)Configurable filter level…
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Description
1 full-bridge strain gauge inputData output rate configurable from 0.1 Hz to 7.5 kHzSpecial operating modes (synchronous mode and multiple sampling)Configurable filter level
This module works with both 4-wire and 6-wire strain gauge load cells. The concept applied by the module requires compensation in the measurement system. This compensation eliminates the absolute uncertainty in the measurement circuit, such as component tolerances, effective bridge voltage or zero point offset. The measurement precision refers to the absolute (compensated) value, which will only change as a result of changes in the operating temperature.
Specification
| I/O module | 1 full-bridge strain gauge input |
|---|---|
| B&R ID code | 0xE754 |
| Status indicators | Channel status, operating state, module status |
| Module run/error | Yes, using LED status indicator and software |
| Open circuit | Yes, using LED status indicator and software |
| Input | Yes, using LED status indicator and software |
| Bus | 0.01 W |
| Internal I/O | 0.5 W |
| Additional power dissipation caused by actuators (resistive) [W] | Max. +0.36 |
| CE | Yes |
| UKCA | Yes |
| ATEX | Zone 2, II 3G Ex nA nC IIA T5 Gc IP20, Ta (see X20 user’s manual) FTZÚ 09 ATEX 0083X |
| UL | cULus E115267 Industrial control equipment |
| HazLoc | cCSAus 244665 Process control equipment for hazardous locations Class I, Division 2, Groups ABCD, T5 |
| Strain gauge factor | 2 to 256 mV/V, configurable using software |
| Connection | 4- or 6-wire connections |
| 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 | 0.1 – 7500 samples per second, configurable using software (fDATA) |
| Cutoff frequency | 5 kHz |
| Order | 3 |
| Slope | 60 dB |
| ADC filter characteristics | Sigma-delta, see section “Filter characteristics of the sigma-delta A/D converter” |
| Operating range / Measurement sensor | 85 to 5000 Ω |
| Influence of cable length | See section “Calculation example”. |
| 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 -“ |
| Insulation voltage between input and bus | 500 Veff |
| Conversion procedure | Sigma-delta |
| 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) |
| 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 |
| 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 |
| Electrical isolation | Bus isolated from analog input and strain gauge supply voltage Channel not isolated from I/O power supply |
| Horizontal | Yes |
| Vertical | Yes |
| 0 to 2000 m | No limitation |
| >2000 m | Reduction of ambient temperature by 0.5°C per 100 m |
| Degree of protection per EN 60529 | IP20 |
| Horizontal mounting orientation | -25 to 60°C |
| Vertical mounting orientation | -25 to 50°C |
| Derating | See section “Hardware configuration” |
| Starting temperature | Yes, -40°C |
| Storage | 5 to 95%, non-condensing |
| Transport | 5 to 95%, non-condensing |
| Operation | Up to 100%, condensing |
| Note | Order 1x terminal block X20TB12 separately. Order 1x bus module X20cBM11 separately. |
| Pitch | 12.5+0.2 mm |
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