The B&R 7AI261.7 is a high-performance analog input module from B&R Industrial Automation's 2003 series control system. This screw-in module is specifically engineered for ultra-precise measurement applications, featuring a dedicated full-bridge strain gauge input channel with 24-bit converter resolution .
Designed for demanding industrial environments, the 7AI261.7 excels at capturing micro-level analog signal changes with exceptional accuracy, making it the ideal choice for force, pressure, tension, and weight measurement applications . The module is currently in stock and available for immediate shipment.
Item No :
7AI261.7Order(MOQ) :
1Payment :
EXWProduct Origin :
AustriaShipping Port :
Wuhan, Hubei, ChinaLead Time :
3-5 daysWeight :
0.2kgProducts Description
B&R 7AI261.7 Analog Input Module
High-Precision Strain Gauge Input Module for B&R 2003 Systems
| Model Number | 7AI261.7 |
| Place of Origin | Austria |
| Dimension/Weight | 0.05kg |
| Condition | New and Original |
| Warranty | 1 year |
| Shipping term | DHL Fedex UPS |
| Payment | TT / Western Union |
| Delivery time | 3-5 days |
| Service | 24 Hours Online Service |
Full-Bridge Strain Gauge Input: One dedicated full-bridge (Wheatstone bridge) input channel for high-precision force, pressure, tension, and weight measurement
24-Bit Sigma-Delta Converter: Delivers ultra-fine signal granularity with effective resolution down to 275 nV for detecting the smallest physical changes
High Measurement Accuracy: ±55 ppm maximum error at 25°C with excellent thermal stability (±3 ppm/°C)
Flexible Measurement Range: Software-configurable ranges from ±1 mV/V to ±16 mV/V
Screw-In Module Design: Tool-free installation and replacement minimizes downtime during maintenance or system upgrades
Robust Signal Integrity: Common mode rejection >120 dB at 50/60 Hz, ensuring stable readings in electrically noisy industrial environments
Built-In Sensor Excitation: Provides 4.5 VDC bridge voltage with short-circuit and overload protection
On-Board Diagnostics: Features broken supply line and broken sensor line detection for proactive fault identification
| Category | Specification |
|---|---|
| Manufacturer | B&R Industrial Automation |
| Model Number | 7AI261.7 |
| Product Type | Analog Input Module - Strain Gauge |
| System Compatibility | B&R 2003 Series |
| Input Channels | 1 Full-Bridge Input |
| Input Type | Wheatstone Bridge / Strain Gauge |
| Digital Converter Resolution | 24 Bits |
| Measurement Range | ±1 mV/V to ±16 mV/V (software configurable) |
| Bridge Voltage | 4.5 VDC ±3% / max. 60 mA |
| Sensor Operating Range | 75 to 5000 Ω |
| Input Current | <140 nA |
| Conversion Method | Sigma Delta |
| Conversion Time | 1 ms |
| Max Error at 25°C | ±55 ppm ±11 µV |
| Temperature Coefficient | ±3 ppm/°C ±1.1 µV/°C |
| Max Error over Full Temp Range | ±0.016% ±50 µV |
| Common Mode Rejection | >120 dB at 50/60 Hz |
| Data Output Rate | 7 - 500 Hz (software configurable) |
| Response Time (1 LSB) | ~250 ms (>100 Hz output) / ~500 ms (≤100 Hz output) |
| Internal Power Consumption | Max. 0.6 W |
| Mounting Type | Screw-In Module (B&R 2003 single-width) |
The B&R 7AI261.7 is ideal for precision measurement scenarios across various industries :
| Industry | Application |
|---|---|
| Material Processing | Tension control in paper, film, textile, and metal processing |
| Industrial Weighing | Precision force and weight measurement systems |
| Process Control | Pressure monitoring in chemical and petrochemical plants |
| Test & Measurement | Laboratory and quality assurance testing equipment |
| Power Generation | Turbine monitoring and stress measurement |
| Pharmaceutical | Precision fluid pressure monitoring |
The 7AI261.7 is part of the B&R 2003 modular I/O system and features a standard screw-in module design. It integrates seamlessly with B&R controllers and bus controllers, including the CP series CPUs (CP430, CP470, CP474, CP476) and EX series bus controllers .
The module can be installed in B&R 2003 system racks and supports:
Connection of 4-line and 6-line strain gauge cells
Software configuration via B&R Automation Studio
Physical unit conversion (32-bit representation)
| Detail | Information |
|---|---|
| Condition | New & Original |
| Stock Status | In Stock |
| Warranty | 12 Months |
| Shipping | Fast dispatch upon order confirmation |
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