OHAUS Defender® 6000 Washdown IP69K Stainless Steel Floor Scale

Overview

The OHAUS Defender® 6000 Washdown Floor Scale is an industrial-grade, high-integrity weighing platform engineered for continuous operation in hygienic and demanding process environments. Built upon Couette-flow load cell architecture with hermetically sealed, welded 316 stainless steel sensing elements, the scale delivers long-term metrological stability under repeated high-pressure washdown cycles, thermal cycling, and exposure to corrosive agents common in food processing, pharmaceutical manufacturing, and chemical production. Its dual-certified ingress protection rating—IP68 (submersion up to 1.5 m for 30 min) and IP69K (high-temperature, high-pressure jet spray per DIN 40050-9)—ensures functional integrity where conventional scales fail. Fully compliant with NSF/ANSI Standard 18 for food equipment, the Defender 6000 meets prerequisite requirements of HACCP-based hygiene management systems and supports audit-ready documentation workflows aligned with FDA 21 CFR Part 11, EU Annex 11, and ISO/IEC 17025 traceability frameworks.

Key Features

• Hygienic construction using electropolished 316 stainless steel for indicator housing, U-frame support structure, weighing pan, and vertical columns (excluding 300 kg and 600 kg variants)
• IP69K-rated front panel with anti-stab, chemically resistant overlay and sealed membrane keypad
• 6-digit, 20 mm high white LED display with configurable brightness and contrast for ambient visibility in wet or low-light conditions
• Tri-color 8×16 LED checkweighing matrix enabling intuitive pass/fail/reject feedback without external software
• 150% mechanical overload protection integrated at both sensor and structural levels
• Real-time clock with GLP/GMP-compliant timestamping for all weight events, printouts, and data exports
• Configurable environmental filtering algorithms to suppress vibration-induced noise in dynamic production lines
• Keypad and menu lockout functionality to prevent unauthorized parameter changes during operation
• Adjustable non-slip rubber leveling feet with integrated height compensation for uneven concrete or epoxy-coated floors

Sample Compatibility & Compliance

The Defender 6000 accommodates bulk solids, packaged goods, tote bins, drums, and intermediate bulk containers (IBCs) across primary and secondary packaging lines. Its flat, seamless pan design eliminates crevices where moisture or particulate residue may accumulate—critical for allergen control and microbial mitigation. All wetted surfaces comply with FDA 21 CFR 178.3570 (indirect food additives) and EC 1935/2004 (materials in contact with food). The scale is certified by NSF International to NSF/ANSI 18, verifying conformance to food equipment sanitation requirements including cleanability, corrosion resistance, and absence of harborage points. It supports full traceability in regulated environments through time-stamped audit logs, user authentication (via optional RFID badge integration), and electronic signature-capable reporting.

Software & Data Management

Data capture and export are governed by OHAUS SmartLink™ firmware, which enables deterministic communication protocols over RS232, USB host, or optional Ethernet/Wi-Fi interfaces. The embedded operating system supports ASCII and Modbus RTU/TCP output formats for direct integration into MES (Manufacturing Execution Systems), SCADA platforms, or ERP modules such as SAP EWM or Oracle WMS. Print templates—including customizable headers, batch IDs, operator codes, and QC flags—are stored onboard and recalled via numeric shortcuts. All weight records include ISO 8601 timestamps, instrument ID, calibration status flag, and environmental condition metadata when connected to optional temperature/humidity sensors. Audit trails meet ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) for regulatory submissions.

Applications

• Food processing: In-line checkweighing of baked goods, meat trays, frozen meals, and ready-to-eat salads prior to metal detection and case packing
• Pharmaceutical manufacturing: Batch reconciliation of active pharmaceutical ingredients (APIs) and excipients during granulation and blending operations
• Chemical formulation: Precise dispensing of catalysts, pigments, and polymer additives into reactor feed hoppers
• Distribution centers: Pallet accumulation verification and manifest validation prior to cold-chain dispatch
• Contract manufacturing: Multi-client environment requiring segregated user profiles, audit trails, and GxP-aligned calibration documentation

FAQ

What certifications does the Defender 6000 Washdown hold for food-grade applications?

It carries NSF/ANSI Standard 18 certification for food equipment and complies with FDA 21 CFR 11 electronic record requirements when used with SmartLink-enabled data export configurations.
Can the scale operate continuously in a chilled or steam-sanitized environment?

Yes—the IP69K rating validates performance under 80°C water jets at 100–150 bar pressure, and its thermal drift compensation ensures accuracy stability between −10°C and +40°C operating ranges.
Is it possible to integrate this scale with a LIMS or ERP system?

Absolutely. Native ASCII and Modbus TCP support allows plug-and-play connectivity with LabVantage, Thermo Fisher SampleManager, SAP S/4HANA, and Microsoft Dynamics 365 Supply Chain Management.
How is calibration traceability maintained in GMP environments?

Internal calibration routines log date/time, technician ID, standard mass value, deviation, and pass/fail status—all exportable as CSV or PDF with digital signatures enabled.
Does the unit support wireless data transmission to mobile devices?

Wi-Fi and Bluetooth modules are available as factory-installed options, enabling secure TLS 1.2 encrypted transmission to Android/iOS tablets running OHAUS ScaleConnect™ mobile application.