OHAUS Defender 3000 i-D33XW Waterproof Platform Scale

Overview

The OHAUS Defender 3000 i-D33XW is an industrial-grade waterproof platform scale engineered for reliable, high-reproducibility mass measurement in demanding wet, washdown, or hygienic production environments. Built upon OHAUS’ legacy of rugged weighing instrumentation, this scale employs a robust load cell architecture with IP67-rated stainless-steel strain gauges and a fully welded 304 stainless-steel structure—including the indicator housing, pan, frame, and internal components—ensuring resistance to corrosion, chemical exposure, and mechanical stress. Its core operation follows electromagnetic force restoration (EMFR) principles for analog-to-digital conversion, delivering stable readings under dynamic floor vibrations or thermal fluctuations typical in food processing, pharmaceutical manufacturing, and chemical packaging lines. The integrated indicator features an IP66-rated enclosure, enabling continuous operation in high-humidity zones where condensation, hose-down procedures, or frequent sanitization are standard practice.

Key Features

• Full 304 stainless-steel construction across all structural and functional components—including pan, frame, indicator housing, and load cell assembly—meets stringent hygiene requirements for FDA-regulated facilities.
• Tri-color visual checkweighing feedback via high-contrast, 45 mm digit-height multicolor backlight LCD: green (within tolerance), yellow (warning band), red (out-of-spec), eliminating subjective interpretation and reducing operator error in high-throughput inspection stations.
• Dual-power architecture supports uninterrupted operation: universal-input AC power (110–240 VAC, 50/60 Hz) and integrated rechargeable sealed lead-acid battery (runtime ≥20 hours at typical usage), ideal for mobile trolleys or locations lacking fixed outlets.
• Flexible mounting system with adjustable stainless-steel U-bracket allows wall, benchtop, or recessed installation—compatible with standard ISO 9001-compliant calibration workflows and GMP facility layout constraints.
• Four embedded application modes—standard weighing, parts counting, dynamic checkweighing, and accumulation—configured without external software; all parameters stored in non-volatile memory to retain settings after power cycling.

Sample Compatibility & Compliance

The i-D33XW accommodates a broad range of industrial sample types: bulk solids (e.g., powders, granules), packaged goods (bottles, trays, cartons), and semi-finished assemblies requiring gross/net/tare determination. Its sealed design complies with IP66 (indicator) and IP67 (load cell) ingress protection standards per IEC 60529, making it suitable for Zone 22 dust environments and occasional water jet exposure per EN 60529. The scale meets applicable sections of NTEP Handbook 44 (Class III) for legal-for-trade applications in North America when configured with appropriate certification options. Structural materials conform to ASTM A240/A240M for 304 stainless steel, supporting cleaning validation under cGMP Annex 1 and EU GMP Guide Part I requirements. All firmware adheres to ISO/IEC 17025 traceability protocols for calibration data integrity.

Software & Data Management

Data export and integration follow industry-standard serial communication protocols. The built-in RS232 interface supports ASCII-based output compatible with label printers (e.g., Zebra, Sato), PLCs (Siemens S7, Allen-Bradley ControlLogix), and MES systems (Rockwell FactoryTalk, Siemens SIMATIC IT). Optional USB (HID or virtual COM port) and Ethernet (TCP/IP Modbus TCP or ASCII streaming) modules enable direct connection to LIMS or ERP platforms such as SAP EWM or Oracle Manufacturing Cloud. Audit trail functionality records timestamped weight events, mode changes, and calibration actions—supporting 21 CFR Part 11 compliance when paired with validated third-party software. No proprietary drivers are required; configuration is performed via front-panel keypad navigation with password-protected access levels for operator, supervisor, and service technician roles.

Applications

• Food & Beverage: In-line checkweighing of filled pouches, cans, or baked goods on conveyor-fed lines; batch verification prior to metal detection or x-ray inspection.
• Pharmaceuticals: Component counting of blister packs or vials during secondary packaging; formulation ingredient verification under USP balance calibration guidelines.
• Chemicals & Plastics: Raw material receipt inspection with tare memory for reusable totes; drum-filling control with accumulation logging per batch lot number.
• Logistics & Distribution: Parcel sorting station weight verification; pallet load consolidation checks prior to stretch wrapping.
• Contract Manufacturing: Multi-client shared facility use with user-specific profile storage and audit-ready session logs.

FAQ

What environmental conditions is the i-D33XW rated for?
It operates continuously in ambient temperatures from –10 °C to +40 °C and relative humidity up to 90 % non-condensing. The IP66 indicator and IP67 load cell withstand low-pressure water jets (per IEC 60529) and temporary submersion—validated for daily CIP/SIP cycles using 1–2 % sodium hydroxide or peracetic acid solutions.
Can the scale be calibrated in-house?
Yes—internal calibration is supported via front-panel prompts using Class M2 or better weights traceable to NIST or equivalent national metrology institutes. External calibration certificates (as per ISO/IEC 17025) are available through OHAUS-authorized service partners.
Is the tri-color checkweighing function programmable?
Yes—upper/lower limits, tolerance bands, and corresponding backlight colors (red/yellow/green) are fully configurable via keypad menu; up to 10 preset checkweighing profiles can be stored and recalled.
Does the scale support GLP/GMP documentation requirements?
All weight events, calibration entries, and parameter changes are time-stamped and logged in internal memory (≥10,000 records). When connected via Ethernet or USB to compliant software, full electronic records—including digital signatures and change history—meet ALCOA+ principles for data integrity.
What maintenance intervals are recommended?
Visual inspection and functional verification every 30 days; full mechanical and metrological verification annually or per process risk assessment. Stainless-steel surfaces require only neutral pH cleaners—no lubricants or solvents needed for moving parts, as the design is fully sealed and static.