OHAUS Defender 3000 i-D33P Industrial Platform Scale

Overview

The OHAUS Defender 3000 i-D33P is an industrial-grade platform scale engineered for precision, durability, and operational flexibility in demanding production, packaging, warehousing, and logistics environments. Built upon OHAUS’s legacy of metrological reliability, this scale employs electromagnetic force compensation (EMFC)-based load cell technology integrated with a robust aluminum sensing element rated to IP65—ensuring consistent performance under dust exposure and incidental moisture. Its core architecture combines a rigid square-tube carbon steel frame with a corrosion-resistant 304 stainless steel weighing pan, delivering long-term mechanical stability and repeatability across repeated loading cycles. The scale operates within Class III accuracy per international weighing standards (OIML R76, EN 45501), making it suitable for non-automatic weighing applications where regulatory traceability and process integrity are required—including inventory control, piece-counting workflows, and dynamic checkweighing protocols.

Key Features

• Multi-color backlit LCD indicator with 6-digit, 7-segment display (45 mm digit height) — optimized for legibility in high-ambient-light industrial settings;
• Tri-color visual checkweighing feedback (red/yellow/green) directly mapped to user-defined tolerance bands — enabling real-time pass/fail assessment without operator interpretation delay;
• IP65-rated aluminum load cell and IP54-rated indicator housing — validated for operation in dry industrial zones with particulate exposure;
• Dual-power architecture: integrated rechargeable lead-acid battery (up to 100 hours standby) + universal AC input (110–240 VAC, 50/60 Hz) — supports uninterrupted operation during power fluctuations or mobile deployment;
• Modular mounting system featuring a die-cast aluminum U-bracket and adjustable leveling feet — compatible with benchtop, floor-standing, and conveyor-integrated configurations;
• Tactile membrane keypad with tactile feedback — designed for gloved-hand operation and resistant to chemical cleaning agents common in manufacturing facilities.

Sample Compatibility & Compliance

The i-D33P accommodates a broad range of industrial sample forms—from bulk raw materials and packaged goods to discrete components and palletized shipments—within its 60 kg capacity and 1 g readability envelope. Its 304 stainless steel pan (330 × 330 mm) resists pitting and staining from solvents, oils, and mild acids encountered in pharmaceutical secondary packaging or food processing lines. The scale meets CE marking requirements under the EU Measuring Instruments Directive (MID 2014/32/EU) and conforms to RoHS 2011/65/EU restrictions on hazardous substances. While not certified for legal-for-trade use in all jurisdictions without local verification, its hardware design aligns with NTEP Class III criteria (US) and OIML R76 Class III tolerances (international), supporting GLP-compliant documentation when paired with audit-trail-capable software.

Software & Data Management

Data output is managed via standard RS232 serial interface (9600 baud, ASCII protocol), enabling seamless integration with label printers, PLCs, and MES systems. Optional USB (virtual COM port) or Ethernet (TCP/IP) modules support higher-bandwidth transmission and networked device management. OHAUS provides free, Windows-compatible ScaleConnect software for configuration, calibration logging, and basic data capture—including timestamped weight records, count batches, and checkweighing event logs. All communications comply with FDA 21 CFR Part 11 principles when used with appropriate system controls (e.g., user authentication, electronic signatures, and immutable audit trails), facilitating validation in regulated GMP environments.

Applications

• Production line checkweighing: Real-time verification of filled containers against upper/lower mass limits prior to case packing;
• Inventory reconciliation: High-speed counting of uniform parts using built-in piece-weight averaging algorithms;
• Shipping & receiving: Gross/net/tare weight capture for freight documentation and dimensional weight calculation;
• Quality assurance sampling: Batch acceptance testing per ISO 2859-1 AQL plans with automated pass/fail flagging;
• Work-in-process tracking: Accumulation of material usage weights across shift-based operations with time-stamped batch totals.

FAQ

Is the i-D33P certified for trade use in the United States?

The i-D33P model is designed to meet NTEP Class III requirements; however, final certification depends on regional approval by the National Type Evaluation Program and subsequent state-level registration.
Can the scale be calibrated internally without external weights?

Yes — it supports internal calibration via built-in reference mass and auto-zero tracking, though external verification with traceable standards is recommended per ISO/IEC 17025 and internal QA procedures.
What environmental conditions limit its operational use?

It is rated for dry industrial environments only (no condensation, no direct washdown). Ambient temperature must remain between 10 °C and 40 °C, with relative humidity ≤80 % non-condensing.
Does the battery support hot-swapping during operation?

No — the lead-acid battery requires shutdown for replacement; however, the dual-power system ensures continuous operation when AC power is available during charging.
How is firmware updated?

Firmware updates are performed via RS232 or optional USB using OHAUS-provided utilities and require administrator-level access through ScaleConnect software.