Product Overview
The SCHENCK RBX 642R. A680040.01 is a premium weighing and process control module engineered by Schenck Process—an industry leader in industrial weighing and feeding solutions. Designed for dynamic and static weighing applications, the SCHENCK RBX 642R. A680040.01 serves as the control hub for weighing systems, delivering high-precision data acquisition, real-time process regulation, and seamless integration with industrial control networks. Key features include a 24-bit analog-to-digital (A/D) converter for ultra-accurate weight measurement, support for multiple load cell types, and compatibility with industry-standard communication protocols—making it ideal for sectors where precision directly impacts product quality, safety, and operational efficiency. The SCHENCK RBX 642R. A680040.01 ensures reliable performance in harsh industrial environments (e.g., dusty factories, high-moisture facilities) and is widely deployed in food processing, pharmaceutical manufacturing, and bulk material handling.
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Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | SCHENCK RBX 642R. A680040.01 |
| Manufacturer | Schenck Process |
| Product Type | Weighing & Process Control Module |
| A/D Converter Resolution | 24-bit (1 part in 16,777,216) |
| Supported Load Cell Types | Strain Gauge Load Cells (350 Ω, 700 Ω); up to 8 load cells per module |
| Weight Measurement Range | 0-50,000 kg (depending on load cell capacity) |
| Accuracy Class | OIML Class III (for legal-for-trade applications) |
| Supported Protocols | Modbus RTU, Profibus DP, Ethernet/IP, RS485 |
| Operating Temperature | -10°C to +55°C (14°F to +131°F); -20°C to +70°C (storage) |
| Power Requirements | 24V DC ±10%, 0.8A (max); reverse polarity protection |
| Mounting Type | DIN Rail (EN 60715, 35mm); panel mounting optional |
| Diagnostic Features | LED indicators (Power, Load Cell Connection, Protocol Status, Fault); built-in load cell fault detection (open/short circuit) |
| Environmental Protection | IP20 (front panel); IP40 (optional with protective housing) |
Key Features and Benefits
1. Ultra-High Precision for Critical Weighing Tasks
The SCHENCK RBX 642R. A680040.01’s 24-bit A/D converter delivers unmatched weighing accuracy, resolving weight differences as small as 0.1 gram (for low-capacity load cells) and maintaining stability even in noisy electrical environments. This precision is non-negotiable in pharmaceutical manufacturing, where it ensures exact dosing of active pharmaceutical ingredients (APIs)—complying with FDA regulations that require weight tolerances of ±0.5%. In food processing (e.g., bakery ingredient mixing), the module’s accuracy prevents overuse of expensive ingredients (e.g., chocolate, nuts) while ensuring consistent product quality, reducing material waste by up to 15%. For legal-for-trade applications (e.g., bulk material shipping), its OIML Class III certification guarantees compliance with local weighing regulations, avoiding fines for inaccurate measurements.
2. Multi-Load Cell Support for Scalable Systems
Unlike basic weighing modules limited to 2-4 load cells, the SCHENCK RBX 642R. A680040.01 can connect to up to 8 strain gauge load cells—making it suitable for large-scale systems like truck scales, hopper weighers, and conveyor belt scales. The module automatically balances signal differences between load cells (a common issue in multi-cell setups), ensuring uniform weight distribution and accurate total readings. In a cement plant, for example, this means the module can monitor a 50-ton hopper with 4 load cells, providing real-time data on material levels to prevent overfilling (which risks equipment damage) or underfilling (which disrupts production). The scalability also allows for system expansion—adding more load cells later without replacing the module, lowering long-term upgrade costs.
3. Flexible Protocol Support for Seamless Integration
The SCHENCK RBX 642R. A680040.01 supports four of the most widely used industrial protocols (Modbus RTU, Profibus DP, Ethernet/IP, RS485), eliminating integration barriers with existing control systems. In a logistics warehouse, it can connect a truck scale to a Modbus RTU-based WMS (Warehouse Management System) for automated weight logging, while in an automotive plant, it links a conveyor scale to an Ethernet/IP PLC for real-time production tracking. Unlike proprietary modules that require custom software, the SCHENCK RBX 642R. A680040.01 works with standard SCADA and HMI platforms (e.g., Siemens WinCC, Rockwell FactoryTalk), reducing setup time by 40% and simplifying operator training.
4. Proactive Diagnostics to Minimize Downtime
The SCHENCK RBX 642R. A680040.01’s advanced diagnostics prevent costly weighing system failures. Built-in load cell fault detection identifies open or short circuits in real time, triggering an alert via the module’s LED indicators and sending a fault code to the control system. In a chemical plant, this means technicians can replace a faulty load cell before it causes inaccurate weight readings (which could lead to incorrect chemical mixing and unsafe products). The module also monitors power supply stability and protocol communication, alerting operators to voltage spikes or network drops. For 24/7 operations (e.g., waste management facilities), this proactive monitoring cuts unplanned downtime by 30%, ensuring continuous weighing of incoming waste loads.
5. Industrial-Grade Durability for Harsh Conditions
Schenck Process engineered the SCHENCK RBX 642R. A680040.01 to withstand the rigors of industrial use. Its IP20 front panel (with optional IP40 protective housing) resists dust and accidental spills, while reverse polarity protection prevents damage from incorrect power wiring—a common issue in busy maintenance environments. The module’s wide operating temperature range (-10°C to +55°C) ensures performance in cold storage facilities (e.g., frozen food weighing) and hot manufacturing plants (e.g., steel mills). With a mean time between failures (MTBF) of 100,000+ hours, the SCHENCK RBX 642R. A680040.01 delivers long-term reliability, reducing replacement costs and maintenance frequency.
Related Models
- SCHENCK RBX 641R. A680030.01 – Entry-level variant of the SCHENCK RBX 642R. A680040.01, supporting up to 4 load cells and Modbus RTU only (ideal for small-scale applications like bench scales).
- SCHENCK RBX 643R. A680050.01 – Premium upgrade of the SCHENCK RBX 642R. A680040.01, featuring a 32-bit A/D converter (1 part in 4,294,967,296) and support for 16 load cells (for large truck scales or rail weighbridges).
- SCHENCK RBX 642R. A680041.02 – Explosion-proof variant of the SCHENCK RBX 642R. A680040.01, certified for ATEX Zone 2/22 (suitable for hazardous areas like chemical storage facilities).
- SCHENCK LC620 – Strain gauge load cell designed to pair with the SCHENCK RBX 642R. A680040.01, offering capacities from 50 kg to 50,000 kg (ideal for hopper and tank weighing).
- SCHENCK COM300 – Protocol converter for the SCHENCK RBX 642R. A680040.01, adding support for BACnet or LonWorks (used in building automation systems for HVAC air handler weighing).
- SCHENCK RBX 642R. A680040.00 – Previous-generation model, replaced by the SCHENCK RBX 642R. A680040.01 due to improved A/D converter speed and expanded protocol support.
- SCHENCK PROTECT 400 – IP65 protective housing for the SCHENCK RBX 642R. A680040.01, used in wet or dusty environments (e.g., wastewater treatment plant sludge weighing).
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