OHAUS Defender 5000 Series Heavy-Duty Platform Scale DF52P1500HSZH

Overview

The OHAUS Defender 5000 Series Heavy-Duty Platform Scale DF52P1500HSZH is an industrial-grade weighing system engineered for precision, long-term stability, and operational resilience in demanding production, logistics, and quality control environments. Built upon a dual-layer structural architecture with a low-profile 90 mm platform-to-floor height, the scale integrates four high-reliability, OIML R60–certified load cells—alloy steel (IP67 rated) or hermetically sealed stainless steel (IP68 rated)—to ensure consistent force transduction under repeated full-scale loading. Its robust mechanical design includes a pressed U-shaped chassis fabricated from 4 mm thick steel or stainless steel, and a load-bearing platform surfaced with 6 mm textured steel or stainless steel plate (8 mm for 5-ton variants), validated through 500,000-cycle fatigue testing at maximum capacity. This construction delivers exceptional rigidity, minimal deflection, and resistance to mechanical shock, thermal drift, and environmental contamination—key requirements for GLP-compliant process weighing and ISO 9001–aligned manufacturing workflows.

Key Features

• Dual-layer reinforced frame with 90 mm ultra-low platform height for seamless pallet jack and forklift integration
• Four OIML R60–certified load cells: alloy steel (IP67) or fully welded stainless steel (IP68) for corrosion- and moisture-resistant operation
• Full stainless steel, IP65-rated junction box with sealed cable entries and redundant strain gauge compensation
• Textured or smooth stainless steel platform surface (6 mm standard; 8 mm for higher-capacity configurations) optimized for slip resistance and cleanability
• Modular interface architecture supporting RS232 as standard, with field-upgradable options including RS485, Ethernet, Bluetooth, USB, analog outputs (4–20 mA / 0–10 VDC), and programmable digital I/O (2-in / 4-out)
• Real-time internal diagnostics, auto-zero tracking, and overload protection with visual and audible alerts

Sample Compatibility & Compliance

The DF52P1500HSZH accommodates a broad range of industrial payloads—from bulk raw materials and packaged goods to assembled components and intermediate containers—without compromising repeatability or linearity. Its rigid platform geometry minimizes edge-loading error, while the symmetric load cell arrangement ensures uniform sensitivity across the entire weighing surface. The scale meets OIML R60 Class C3/C4 accuracy requirements for legal-for-trade applications where applicable, and its ingress protection ratings (IP67/IP68 for sensors, IP65 for electronics) support operation in wet, dusty, or washdown-prone areas compliant with ISO 14644 cleanroom classifications or USDA/FDA-sanctioned food processing zones. All firmware and calibration records adhere to audit-trail principles compatible with FDA 21 CFR Part 11–governed environments when integrated with validated data management systems.

Software & Data Management

The scale’s embedded firmware supports bidirectional communication via RS232 for direct integration with laboratory information management systems (LIMS), enterprise resource planning (ERP) platforms, or custom SCADA architectures. Optional Ethernet and RS485 interfaces enable centralized configuration, remote firmware updates, and time-synchronized data logging across multi-unit deployments. When paired with OHAUS AC software or third-party OPC UA–compliant middleware, the DF52P1500HSZH provides timestamped weight events with metadata (operator ID, batch number, tare ID), configurable pass/fail thresholds for checkweighing, and CSV/Excel-exportable reports traceable to NIST-traceable calibration certificates. Audit logs capture all parameter changes, zero adjustments, and calibration activities—supporting GLP/GMP documentation integrity and internal quality audits.

Applications

• Raw material intake verification and lot-based receiving inspection in pharmaceutical and chemical manufacturing
• In-line checkweighing of filled containers, cartons, or drums prior to labeling and shipment
• Dynamic weighing of moving loads on conveyor-fed platforms with hold-and-stabilize functionality
• Inventory reconciliation and cycle counting in warehouse and distribution centers
• Formulation batching and component counting in metal fabrication, plastics, and agribusiness operations
• Calibration transfer and reference mass verification in metrology labs supporting ISO/IEC 17025 accreditation

FAQ

What load cell certifications does the DF52P1500HSZH meet?

The scale uses four OIML R60–certified load cells, available in alloy steel (IP67) or stainless steel (IP68) variants, ensuring compliance with international metrological standards for industrial weighing.
Is the scale suitable for washdown environments?

Yes—the stainless steel sensor option (IP68) and IP65-rated junction box provide robust protection against water ingress, making it appropriate for periodic wet cleaning in food, beverage, and pharmaceutical settings.
Can the scale interface with PLC-based control systems?

Yes—via optional 4–20 mA/0–10 VDC analog outputs or 2-in/4-out digital I/O, enabling direct integration with industrial programmable logic controllers for automated gate control, reject mechanisms, or fill-level feedback loops.
Does the scale support multiple user profiles with access restrictions?

User-level permissions (e.g., operator vs. administrator) are managed through external software integrations; the onboard display supports password-protected calibration and configuration mode to prevent unauthorized adjustments.
What is the recommended recalibration interval?

Per ISO 9001 and ASTM E4 guidelines, recalibration frequency depends on usage intensity, environmental conditions, and risk assessment—but annual verification against certified test weights is typical for non-critical applications, with semi-annual intervals recommended for regulated QC processes.