OHAUS Defender 5000 Series Heavy-Duty Platform Scale DF52P1500HLZH

Overview

The OHAUS Defender 5000 Series Heavy-Duty Platform Scale DF52P1500HLZH is an industrial-grade floor scale engineered for precision, durability, and long-term operational stability in demanding production, logistics, and quality control environments. Built upon a dual-layer structural architecture with a low-profile 90 mm platform height, the DF52P1500HLZH integrates mechanical robustness with metrological integrity. Its measurement principle relies on high-reliability strain-gauge-based load cell technology—four OIML R60-certified alloy steel transducers (IP67-rated) or optional stainless-steel-welded variants (IP68)—ensuring consistent signal linearity, minimal creep, and resistance to environmental stressors including moisture, dust, and mechanical shock. Designed for integration into automated workflows, the scale meets foundational requirements for traceable mass measurement under ISO/IEC 17025-aligned calibration practices and supports audit-ready documentation when paired with compliant software systems.

Key Features

• Dual-layer reinforced frame: U-shaped base formed from 4 mm cold-rolled steel or austenitic stainless steel (304), providing torsional rigidity and dimensional stability under repeated loading.
• Platform surface: 6 mm textured steel plate (standard) or 304 stainless steel plate; 8 mm thickness available for 5-ton configurations to resist deformation during heavy palletized loads.
• Proven fatigue endurance: Independently validated for 500,000 full-scale load cycles without performance degradation—certified per ISO 376 Annex C methodology for load cell longevity assessment.
• Environmental resilience: IP65-rated stainless-steel indicator enclosure; IP67-rated load cells (alloy steel); IP68-rated hermetically sealed stainless-steel load cells (optional); all conforming to IEC 60529 ingress protection standards.
• Modular connectivity: Standard RS232 interface enables direct integration with label printers, PLCs, or legacy lab PCs; optional expansion modules support Ethernet (TCP/IP), RS485 multidrop networks, analog process control signals (4–20 mA / 0–10 VDC), and discrete I/O (2-in / 4-out) for machine interlocking.

Sample Compatibility & Compliance

The DF52P1500HLZH accommodates standard industrial containers—including pallets (up to 1500 kg capacity), drums, tote bins, and bulk bags—without requiring recalibration or mechanical adaptation. Its low 90 mm deck height minimizes loading effort and eliminates tripping hazards in high-traffic zones. The scale complies with OIML R76-1 (Non-Automatic Weighing Instruments), EN 45501, and ANSI/NIST Handbook 44 Class III accuracy requirements for general-purpose industrial use. Load cell certification to OIML R60 ensures interchangeability and traceability to national metrology institutes. For regulated environments (e.g., food processing, pharmaceutical manufacturing), the scale’s analog/digital I/O and optional audit-trail-capable software interfaces support alignment with FDA 21 CFR Part 11 data integrity principles when deployed with validated host systems.

Software & Data Management

The DF52P1500HLZH operates natively with OHAUS ACX™ configuration software (Windows-based), enabling secure setup of weighing modes, unit conversions, tare management, and communication protocols. When connected via RS232 or Ethernet, real-time weight data can be streamed to LIMS, MES, or ERP platforms using ASCII or Modbus RTU/TCP protocols. Optional OHAUS DataBridge™ firmware adds timestamped data logging (internal memory or SD card), user-access-level controls, and export-compatible CSV/Excel formatting. All firmware updates are digitally signed and version-locked to ensure integrity—a prerequisite for GLP/GMP-compliant record retention and internal audit readiness.

Applications

• Manufacturing: In-line checkweighing of finished goods, raw material receipt verification, batch reconciliation, and scrap metal inventory tracking.
• Logistics & Warehousing: Pallet weighing, load distribution analysis, and shipping compliance (e.g., carrier weight validation).
• Food & Beverage: Dry ingredient batching, yield monitoring, and HACCP-critical weight verification prior to thermal processing.
• Recycling & Waste Management: Compaction load optimization, inbound scrap classification, and landfill tonnage reporting.
• Education & Technical Training: Demonstrating static force transduction, calibration hierarchy, and industrial instrumentation interfacing in engineering labs.

FAQ

What is the maximum safe overload rating for the DF52P1500HLZH?

The scale is designed to withstand 150% of its rated capacity (2250 kg) for short-duration overloads without permanent deformation or calibration shift—per OIML R76-1 Clause 5.3.2.
Can this scale be calibrated in-house using NIST-traceable weights?

Yes—internal calibration mode supports two-point linear adjustment (zero and span) using certified test masses; external calibration requires Class F1 or better weights per ASTM E74 and ISO 9001 clause 7.6.
Is the stainless-steel variant suitable for washdown environments?

The IP68 load cell option combined with the IP65-rated stainless indicator and fully welded junction box meets USDA and EHEDG guidelines for frequent low-pressure water exposure—but not high-temperature steam sterilization.
Does the scale support automatic tare capture during dynamic loading?

Dynamic weighing mode includes programmable stabilization delay and auto-tare initiation upon platform settling—configurable via ACX™ software to match conveyor belt speed or operator workflow.
How is firmware updated, and is version rollback supported?

Firmware is updated via USB or Ethernet using OHAUS-provided signed binaries; version history and rollback capability are retained in non-volatile memory for forensic traceability during regulatory inspections.