OHAUS Defender 5000 Series Heavy-Duty Platform Scale DF52XW3000WLZH

Overview

The OHAUS Defender 5000 Series Heavy-Duty Platform Scale DF52XW3000WLZH is an industrial-grade weighing solution engineered for precision, durability, and long-term reliability in demanding production, logistics, and quality control environments. Built upon a robust dual-layer structural architecture with reinforced U-channel base frame, the scale employs high-strength carbon steel or stainless steel construction throughout—ensuring mechanical stability under repeated full-scale loading cycles. Its load measurement principle relies on four high-accuracy, temperature-compensated alloy steel load cells (stainless steel variants feature hermetically sealed IP68 weldments), conforming to OIML R60 Class C3 performance requirements for accuracy class and repeatability. With a low-profile 90 mm deck-to-floor height, the DF52XW3000WLZH enables seamless integration into conveyor lines, palletizing stations, and warehouse workflows without requiring structural modification or ramping infrastructure.

Key Features

• Structural integrity validated through 500,000 full-capacity fatigue cycles per ASTM E74 and ISO 376 protocols
• 6 mm chequered steel or stainless steel weighing platform (8 mm for 5-ton configurations); 4 mm U-channel base frame formed from cold-rolled sheet metal
• Four OIML R60-certified C3 load cells—alloy steel (IP67 rated) or fully welded stainless steel (IP68 rated)
• IP65-rated all-stainless junction box with corrosion-resistant terminals and strain gauge protection
• Low-profile design: 90 mm overall height supports ergonomic material handling and minimizes tripping hazards
• Integrated overload protection and shock-absorbing mounting system to mitigate impact-induced drift

Sample Compatibility & Compliance

The DF52XW3000WLZH accommodates diverse industrial loads—including palletized goods, bulk containers, machinery components, and agricultural produce—without degradation in linearity or hysteresis. Its modular construction allows adaptation to floor-mounted, pit-installed, or mobile configurations using optional ramps or castor-based trolleys. The scale complies with international metrological standards including OIML R76 (non-automatic weighing instruments), EN 45501 (European harmonized standard for industrial scales), and meets essential requirements for CE marking under the Measuring Instruments Directive (MID 2014/32/EU). For regulated environments, firmware supports GLP/GMP-compliant audit trails when paired with compatible data acquisition software, and optional analog/digital I/O modules facilitate integration into PLC-controlled manufacturing systems compliant with IEC 61131-3.

Software & Data Management

The DF52XW3000WLZH features a built-in RS232 serial interface as standard, enabling direct connection to label printers, PCs, or legacy SCADA systems for real-time weight capture and report generation. Optional communication modules include RS485 (for multi-drop daisy-chaining), Ethernet (TCP/IP), Bluetooth 5.0, and USB host/device modes—supporting both ASCII and Modbus RTU/ASCII protocols. Analog outputs (4–20 mA / 0–10 VDC) and configurable digital I/O (2 inputs / 4 outputs) allow closed-loop control of external actuators such as gates, conveyors, or solenoid valves. Firmware supports user-defined calibration routines, password-protected parameter locking, and time-stamped event logging—critical for traceability in ISO 9001-certified quality management systems.

Applications

• Warehouse receiving and dispatch verification with dynamic weighing and hold functions
• In-line checkweighing for pharmaceutical packaging, food processing, and automotive component assembly
• Inventory management via piece counting mode with automatic average piece weight (APW) calculation
• Batch formulation and percentage weighing in chemical blending and feed mixing operations
• Heavy equipment maintenance shops for axle load distribution analysis and trailer payload monitoring
• Agricultural cooperatives performing harvest yield tracking and grain bin inventory reconciliation

FAQ

What certifications does the DF52XW3000WLZH hold for legal-for-trade use?

The scale meets OIML R76 requirements and is certified for non-automatic weighing applications in multiple jurisdictions; local type approval may be required depending on national metrology authority regulations.
Can the scale operate reliably in wet or washdown environments?

Stainless steel models with IP68 load cells and IP65-rated electronics are suitable for high-humidity areas and periodic cleaning; however, continuous submersion or high-pressure steam cleaning is not supported.
Is it possible to integrate this scale into an existing MES or ERP system?

Yes—via optional Ethernet or RS485 modules using standard Modbus TCP or RTU protocols, enabling bi-directional data exchange with SAP, Oracle, or custom enterprise platforms.
Does the scale support NIST-traceable calibration?

Calibration procedures follow ISO/IEC 17025 guidelines; users must perform initial verification using NIST-traceable test weights appropriate to the scale’s capacity and class.
What is the maximum recommended ambient operating temperature range?

–10 °C to +40 °C (14 °F to 104 °F) for standard configurations; extended-range options are available upon request.