OHAUS Defender 3000 i-D33XW Waterproof Floor Scale

Overview

The OHAUS Defender 3000 i-D33XW is an industrial-grade, fully stainless steel floor scale engineered for reliable performance in demanding, moisture-prone environments. Built upon OHAUS’ legacy of robust weighing instrumentation, this scale employs electromagnetic force compensation (EMFC) technology in its IP67-rated 304 stainless steel load cell — ensuring long-term stability, high reproducibility, and resistance to corrosion from washdowns, chemical exposure, and routine sanitation cycles. Its IP66-rated indicator features a ruggedized housing, tactile membrane keypad, and a high-contrast, 6-digit multicolor backlight LCD with 45 mm digit height — optimized for legibility under low-light, high-glare, or fogged-glass conditions common in food processing, pharmaceutical manufacturing, and logistics hubs. Designed to meet the operational rigor of GLP-compliant production floors and ISO 22000-certified facilities, the i-D33XW supports traceable, repeatable mass measurement across dynamic workflows without recalibration drift.

Key Features

• Full 304 stainless steel construction — including indicator housing, pan, frame, and load cell — enabling compatibility with USDA-FSIS, EHEDG, and FDA-sanctioned cleaning protocols.
• Tri-color visual checkweighing feedback via programmable backlight (red/yellow/green) directly on the LCD, eliminating reliance on external light towers and reducing operator cognitive load during high-volume inspection tasks.
• Dual-power architecture: integrated rechargeable sealed lead-acid battery (up to 80 hours runtime) and universal 110–240 VAC input, supporting uninterrupted operation during power fluctuations or mobile deployment across warehouse zones.
• Modular connectivity: standard RS232 interface for legacy label printers and PLC integration; optional USB (HID or virtual COM) and Ethernet (TCP/IP) modules enable seamless data routing into MES, SAP, or LIMS platforms with configurable ASCII or Modbus RTU/TCP output formats.
• Adjustable stainless U-bracket mounting system — field-configurable for recessed, flush, or pedestal installation — maintaining structural integrity and NTEP Class III / OIML R76 compliance under off-center loading up to 125% of capacity.

Sample Compatibility & Compliance

The i-D33XW accommodates diverse industrial sample forms — from bulk palletized goods and tote containers to nested trays and irregularly shaped assemblies — without requiring repositioning or auxiliary fixtures. Its low-profile, wide-span platform minimizes tipping risk during dynamic loading, while the IP67-rated load cell maintains metrological integrity after repeated exposure to steam, caustic cleaners (pH 1–14), and pressurized water jets (EN 60529). The scale complies with NTEP Certificate No. 22-027E (Class III, 5,000e resolution), OIML R76-1 Edition 2006, and meets the mechanical and environmental requirements of ANSI/NCSL Z540-1 and ISO/IEC 17025 for in-house calibration verification. Firmware supports audit-trail logging per FDA 21 CFR Part 11 when paired with compliant software clients.

Software & Data Management

The embedded firmware supports user-defined tare memory (up to 99 entries), batch accumulation with time/date stamping, and programmable checkweighing tolerances (±0.01% to ±10% of full scale). Data export is configurable via RS232 framing (including auto-print triggers on stable weight) or network-enabled protocols. When connected to OHAUS Acquire™ PC software (Windows/macOS), users gain access to real-time trend visualization, SPC charting (X-bar/R, Cp/Cpk), electronic signature capture, and automated report generation compliant with ISO 9001 clause 8.5.2. All configuration changes are logged with timestamp, operator ID, and pre/post-value deltas — satisfying internal quality audits and regulatory review requirements.

Applications

• Food & Beverage: In-line checkweighing of filled pouches, cans, and case-packed items prior to metal detection and palletizing; wet-environment batching of raw ingredients in dairy or meat processing.
• Pharmaceuticals: Component counting of vials, syringes, or blister cards under ISO 14644-1 Class 8 cleanroom-adjacent staging areas; formulation ingredient verification prior to granulation.
• Logistics & Distribution: Parcel sortation weight validation, pallet load optimization, and returnable packaging reconciliation in humid dock environments.
• Chemical Manufacturing: Corrosive material dispensing control, drum filling verification, and intermediate product transfer accountability where solvent vapors or acid mists are present.

FAQ

Is the i-D33XW certified for legal-for-trade use in the United States?

Yes — it holds NTEP Certificate #22-027E for Class III applications up to 150 kg, with verification to ±0.02% of capacity under OIML R76 test conditions.
Can the scale be calibrated remotely via network connection?

No — internal calibration requires physical application of certified test weights; however, external calibration verification logs and adjustment history are accessible via Ethernet or RS232 for QA review.
Does the tri-color checkweighing function support custom threshold zones beyond red/yellow/green?

The firmware supports three fixed zones only; additional tolerance bands require external logic via PLC or host software using ASCII weight stream parsing.
What is the operating temperature range for continuous use?

–10 °C to +40 °C (14 °F to 104 °F) at ≤80% non-condensing relative humidity, validated per IEC 61000-6-2 EMC immunity standards.
Is the lead-acid battery replaceable by the end user?

Yes — the battery compartment is serviceable with standard Torx T10 tools; replacement part number is OHAUS 81192021.