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, repeatable mass measurement in demanding production, packaging, food processing, and pharmaceutical manufacturing environments. Built on a robust load cell architecture utilizing hermetically sealed stainless steel strain gauges (IP67-rated), the scale operates on the principle of electromagnetic force compensation combined with high-stability analog-to-digital conversion to deliver consistent performance under variable thermal and mechanical loads. Its fully welded 304 stainless steel construction—including load frame, pan, indicator housing, and internal structural supports—ensures long-term dimensional stability and resistance to corrosion from water, cleaning agents, oils, and organic residues. The indicator’s IP66 ingress protection rating certifies full resistance to powerful water jets and total dust exclusion, making it suitable for frequent wet cleaning and high-humidity operational zones without compromising metrological integrity.

Key Features

• Full 304 stainless steel construction across all primary structural and functional components—pan, frame, indicator enclosure, and internal load path—to ensure compliance with hygienic design principles (EHEDG Guideline Doc. 8, FDA Food Code §3-302.11).
• IP66-rated indicator with IP67-rated stainless steel load cell, enabling operation in splash-prone, washdown, and high-particulate industrial settings.
• 6-digit, 7-segment multicolor backlight LCD display with 45 mm character height—optimized for legibility under low-light, high-glare, or vibrating floor conditions typical in factory environments.
• Three-color visual checkweighing feedback (red/yellow/green) directly mapped to user-defined upper/lower tolerance bands—reducing operator interpretation error and supporting lean manufacturing workflows.
• Four integrated weighing modes: standard gross/net tare weighing, piece counting (with automatic average piece weight calculation and stability-based sample validation), dynamic checkweighing with configurable pass/fail thresholds, and accumulation for batch totalization.
• Dual power architecture: universal-input AC adapter (110–240 VAC, 50/60 Hz) and built-in maintenance-free sealed lead-acid battery providing ≥20 hours of continuous operation on a full charge—enabling deployment in mobile or temporary stations without fixed electrical infrastructure.

Sample Compatibility & Compliance

The i-D33XW accommodates a broad range of industrial samples—from bulk raw materials (e.g., granules, powders, frozen proteins) to packaged goods (cartons, trays, tote bins) and intermediate assemblies. Its rigid, low-profile platform minimizes deflection during off-center loading, maintaining accuracy across ±10% eccentricity per OIML R76-1 Annex D. The scale is designed to meet foundational requirements for GMP-aligned operations: traceable calibration (via external weights), audit-ready configuration logging, and non-volatile memory retention of setup parameters during power loss. While not inherently 21 CFR Part 11 compliant out-of-the-box, its RS232/USB/Ethernet interfaces support integration with validated LIMS or MES systems that enforce electronic signature, audit trail, and data integrity controls per ALCOA+ principles.

Software & Data Management

Data output is managed via bidirectional serial communication using ASCII-based protocols compatible with industry-standard label printers (e.g., Zebra, Sato), PLCs, and SCADA systems. The RS232 port supports configurable baud rates (1200–19200 bps), parity, and termination characters, allowing seamless integration into legacy automation infrastructures. Optional USB (virtual COM port) and Ethernet (TCP/IP socket) modules enable direct connection to Windows/Linux workstations or cloud-connected edge gateways. Firmware supports user-configurable print formats—including timestamped weight records, count summaries, and pass/fail logs—with no proprietary software dependency. All configuration changes are logged internally with date/time stamps, satisfying basic GLP documentation requirements for instrument setup verification.

Applications

• Food & beverage production lines: portion control of meat cuts, cheese blocks, or baked goods; in-process checkweighing prior to metal detection and case packing.
• Pharmaceutical secondary packaging: verification of tablet blister pack counts, vial fill consistency, and carton gross weight compliance with USP and EP 2.1.6 tolerances.
• Chemical and polymer manufacturing: batching of catalysts, additives, or masterbatches where moisture exposure prohibits conventional carbon-steel scales.
• Agricultural cooperatives: field-side weighing of harvested produce under ambient rain or dew conditions.
• Recycling and waste management facilities: sorting station weight verification for material streams subject to municipal moisture regulations.

FAQ

What environmental standards does the i-D33XW meet for washdown use?

It conforms to IP66 (indicator) and IP67 (load cell) per IEC 60529, and its 304 stainless steel surfaces comply with USDA-FSIS Appendix A and EHEDG Doc. 8 for clean-in-place (CIP) compatibility.
Can the scale be calibrated with NIST-traceable weights?

Yes—the indicator supports external calibration using Class F1 or better weights per ASTM E74 and OIML R111, with calibration coefficients stored in non-volatile memory.
Is firmware upgradable in the field?

Firmware updates are performed via USB stick or RS232 using OHAUS-provided utility tools; version history and update timestamps are retained in system logs.
Does the battery require periodic replacement?

The sealed lead-acid battery is rated for ≥300 charge cycles and includes low-voltage cutoff and trickle-charge management; typical service life exceeds 2 years under normal usage.
How is overload protection implemented?

Mechanical stoppers limit pan displacement beyond 150% of rated capacity, while the load cell’s overrange capability (up to 300% of capacity) is monitored digitally to prevent zero drift or hysteresis accumulation.