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 performance in demanding wet, washdown, or high-hygiene environments. Built on OHAUS’s proven Defender platform architecture, this model employs Couette-type load cell technology with hermetically sealed, IP67-rated 304 stainless steel strain gauges—ensuring long-term stability under repeated exposure to moisture, cleaning agents, and mechanical stress. Its fully welded 304 stainless steel construction extends across the indicator housing, pan, base frame, and internal structural components, eliminating crevices where contaminants can accumulate. Designed for continuous operation in food processing lines, pharmaceutical manufacturing zones, chemical blending stations, and municipal waste sorting facilities, the i-D33XW meets the functional requirements of ISO 22196 (antimicrobial surface testing), USDA-FSIS sanitation guidelines, and general GMP-aligned facility protocols.

Key Features

• IP66-rated indicator with tri-color visual feedback: The 6-digit, 7-segment LCD features 45 mm high digits and programmable red/yellow/green backlighting for immediate pass/fail/warning status during checkweighing—eliminating reliance on operator interpretation of numeric thresholds.
• Full 304 stainless steel architecture: Includes indicator enclosure, weighing pan, support frame, and integrated IP67 load cell assembly—certified per ASTM A240 and EN 10088-1 standards for corrosion resistance in chloride-rich and acidic cleaning environments.
• Dual-power operation: Operates continuously from universal-input AC power (110–240 VAC, 50/60 Hz) or switches seamlessly to onboard rechargeable sealed lead-acid battery (runtime ≥ 20 hours at typical duty cycle), supporting mobile deployment and backup during facility power interruptions.
• Modular connectivity: Standard RS232 serial port enables direct integration with label printers, PLCs, or legacy MES systems; optional USB (HID or CDC class) and Ethernet (TCP/IP stack with Modbus TCP support) modules allow modern data routing to cloud-based QA dashboards or LIMS platforms.
• Four core operational modes: Precision weighing (with auto-zero tracking and drift compensation), piece counting (with statistical averaging over up to 10 samples), dynamic checkweighing (with configurable upper/lower limits and tolerance bands), and accumulation (batch totalization with timestamped logging).

Sample Compatibility & Compliance

The i-D33XW accommodates a broad range of industrial sample forms—including bulk liquids in stainless containers, packaged food units, pharmaceutical blister cards, automotive components, and recyclable material batches—without requiring recalibration between load types. Its low-profile pan geometry (standard 300 × 400 mm, optional 400 × 500 mm) supports stable placement of irregularly shaped or top-heavy items. The scale complies with international metrological requirements under OIML R76-1 (Class III) and NTEP Certificate No. 22-022E (for legal-for-trade use in the U.S. when configured with appropriate firmware). It supports audit-ready operation per FDA 21 CFR Part 11 when paired with compliant data capture software, including electronic signature capability, user access levels, and immutable event logs for GLP/GMP traceability.

Software & Data Management

OHAUS provides the free ScaleConnect configuration utility for Windows-based setup of units, decimal places, communication parameters, and checkweighing thresholds. Logged weight data—including timestamps, operator IDs (via optional keypad login), and mode-specific metadata—can be exported in CSV or XML format. When equipped with the Ethernet option, the scale supports MQTT publishing to IIoT edge gateways and integrates natively with Rockwell FactoryTalk, Siemens SIMATIC WinCC, or custom Python-based QA analytics pipelines via RESTful API endpoints. All firmware updates are digitally signed and validated prior to installation to maintain integrity across regulated deployments.

Applications

• Food & beverage production: In-line checkweighing of filled pouches, trays, and crates pre-packaging; raw ingredient batching in wet processing areas.
• Pharmaceutical manufacturing: Weighing of excipients and active ingredients in ISO Class 7/8 cleanrooms; container tare verification prior to sterile filling.
• Chemical & polymer handling: Accurate dispensing of viscous resins, catalysts, or solvent blends in ventilated fume hoods or outdoor storage yards.
• Municipal & recycling operations: Sorting station weight verification for inbound scrap metal, e-waste, or organic compost streams under variable weather conditions.
• Logistics & distribution centers: Pallet accumulation verification before stretch wrapping; dimensional weight cross-checking in humid dock environments.

FAQ

Is the i-D33XW certified for legal-for-trade use in North America?
Yes—when ordered with NTEP-certified firmware and calibrated by an accredited service provider, it meets NIST Handbook 44 requirements for Class III applications up to 30 kg capacity.
Can the scale operate continuously in outdoor rain-exposed locations?
The IP66 indicator and IP67 load cell provide protection against powerful water jets and temporary submersion, but long-term outdoor installation requires supplemental canopy shielding and grounding per IEC 61000-6-2 for electromagnetic immunity.
Does the tri-color checkweighing display support custom threshold definitions?
Yes—up to three independent weight bands (e.g., underweight/yellow, in-spec/green, overweight/red) can be defined with absolute or percentage-based tolerances via ScaleConnect or front-panel programming.
What maintenance intervals are recommended for sustained IP rating integrity?
OHAUS recommends quarterly inspection of gasket compression force, sealant integrity at cable entries, and verification of indicator housing fastener torque per ANSI/ISA-88.01; full recalibration every 12 months or after 10,000 load cycles.
Is firmware update capability available over Ethernet without physical access?
Yes—remote firmware updates are supported via secure HTTPS upload through the embedded web server, with SHA-256 signature validation and rollback recovery on failed installations.