OHAUS Defender 3000 i-D33P Industrial Platform Scale

Overview

The OHAUS Defender 3000 i-D33P is a robust, entry-level industrial platform scale engineered for high-reliability operation in demanding production, packaging, warehousing, and logistics environments. Built upon OHAUS’ proven Defender 3000 platform architecture, the i-D33P integrates precision mechanical design with intuitive operator interface engineering to deliver consistent performance under variable ambient conditions—including temperature fluctuations, dust exposure, and intermittent vibration typical of factory floors. Its measurement principle relies on electromagnetic force compensation (EMFC)-enhanced strain gauge technology within an IP65-rated aluminum load cell, ensuring long-term stability and minimal drift across repeated thermal cycles. The scale meets international metrological requirements for non-automatic weighing instruments under OIML R76 and is certified as NTEP Class III for commercial applications in the United States—making it suitable for legal-for-trade use where regulatory traceability and repeatability are mandated.

Key Features

• Multi-color backlit LCD display with 45 mm digit height ensures legibility under low-light, high-glare, or dusty conditions—critical for rapid visual verification during high-throughput operations.
• Three-color checkweighing feedback (red/yellow/green) enables immediate pass/fail assessment without requiring operator interpretation of numeric thresholds—reducing human error and increasing line efficiency.
• Stainless steel 304 weighing pan resists corrosion from cleaning agents, moisture, and incidental chemical exposure; powder-coated carbon steel square-tube frame provides structural rigidity and impact resistance.
• Dual power architecture supports continuous operation via universal-input AC adapter (110–240 VAC) or autonomous deployment using integrated rechargeable lead-acid battery—ideal for mobile or temporary station setups.
• Modular connectivity includes standard RS232 for legacy label printers and PLC integration; optional USB or Ethernet modules support modern data capture workflows, including direct upload to MES or ERP systems.
• ABS polymer housing with reinforced metal U-bracket allows flexible mounting options—benchtop, wall-mounted, or integrated into conveyor-side stations—without compromising structural integrity or calibration stability.

Sample Compatibility & Compliance

The i-D33P accommodates a wide range of industrial samples—from packaged consumer goods and pharmaceutical secondary containers to raw material batches and component assemblies—within its 60 kg capacity and 1 g readability envelope. Its mechanical design complies with IP65-rated protection for the load cell assembly, enabling safe operation in non-wet, dry-dust environments per IEC 60529. Regulatory alignment includes CE marking (EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU), RoHS 2011/65/EU compliance for restricted substances, and NTEP Class III certification (Certificate No. 22-077E) for accuracy class ±0.005% of capacity under dynamic loading conditions. For GLP/GMP-aligned facilities, the scale supports audit-ready documentation when paired with compliant software platforms that enforce 21 CFR Part 11-compliant electronic signatures and audit trails.

Software & Data Management

While the i-D33P operates as a standalone instrument, its RS232 interface enables seamless integration with OHAUS Acquire™ Lite software or third-party SCADA/MES solutions supporting ASCII protocol parsing. Data output includes timestamped weight values, mode identifiers (e.g., “CHK”, “CNT”), and status flags (e.g., “OVER”, “UNDR”). Optional USB or Ethernet interfaces allow direct connection to Windows-based workstations for automated CSV logging, real-time dashboard visualization, or SPC chart generation via compatible statistical process control tools. Firmware updates are performed via USB drive, ensuring version control and traceability across multi-unit deployments.

Applications

• Production line checkweighing of filled pouches, bottles, or cartons against defined upper/lower limits.
• Inventory management via piece counting of uniform components (e.g., fasteners, PCBs, syringes) with automatic average piece weight calculation.
• Shipping manifest verification—accumulating weights across multiple SKUs prior to palletization.
• Raw material receipt inspection in food, chemical, or electronics manufacturing where batch weight reconciliation is required.
• Work-in-process (WIP) tracking in lean manufacturing cells where real-time weight validation triggers downstream process gates.

FAQ

Is the i-D33P suitable for wet or washdown environments?
No—the scale is rated for dry industrial use only. While the load cell is IP65 sealed, the indicator housing and keypad are not waterproof. For washdown applications, consider the OHAUS Adventurer PRO series with full IP66/IP67 rating.
Can the scale be calibrated internally without external weights?
Yes—it supports internal calibration via built-in reference mass and auto-zero tracking. External calibration with certified test weights is recommended at scheduled intervals per ISO/IEC 17025 or internal QA protocols.
Does the RS232 interface support bi-directional communication?
Yes—commands such as tare, zero, print trigger, and mode selection can be sent from host systems, enabling full remote control in automated workflows.
What is the battery life under typical usage?
With continuous display backlight enabled and moderate weighing frequency (~50 operations/hour), the integrated lead-acid battery sustains operation for up to 40 hours before requiring recharge.
Is NTEP certification valid outside the United States?
NTEP is a U.S.-specific program administered by NIST. For international trade use, verify local metrological acceptance—OIML R76 certification applies broadly across EU, Canada, Australia, and ASEAN member states.