OHAUS Defender 3000 i-D33XW Waterproof Floor Scale

Overview

The OHAUS Defender 3000 i-D33XW is an industrial-grade waterproof floor scale engineered for reliability and operational continuity in demanding wet, washdown, or high-hygiene environments. Built upon OHAUS’ legacy of precision weighing instrumentation, this model employs a robust load cell architecture compliant with ISO 7500-1 Class III accuracy requirements and integrates a fully sealed indicator unit rated to IP66—ensuring resistance against powerful water jets and dust ingress. The scale operates on the principle of strain-gauge-based force transduction, where mechanical load deformation is converted into proportional electrical signals, conditioned and digitized by a 24-bit ADC for stable, repeatable readings under dynamic industrial conditions. Its design targets continuous-duty applications in food processing, pharmaceutical manufacturing, chemical handling, and logistics—where regulatory compliance, cleanability, and long-term stability are non-negotiable.

Key Features

• Full 304 stainless steel construction—including indicator housing, pan, frame, and internal structural components—enabling compatibility with caustic cleaning agents and repeated high-pressure washdown cycles.
• IP67-rated stainless steel load cell, hermetically sealed against moisture penetration and corrosion, validated per IEC 60529 standards.
• 6-digit, 7-segment multicolor backlit LCD display with 45 mm character height; optimized for visibility under low-light, steam-filled, or brightly lit production floors.
• Tri-color checkweighing feedback (red/yellow/green) provides immediate visual pass/fail status without operator interpretation—reducing human error and accelerating throughput in QC inspection lanes.
• Dual power operation: integrated rechargeable lead-acid battery (up to 100 hours runtime) and universal AC input (110–240 VAC, 50/60 Hz), supporting uninterrupted operation during facility power fluctuations or mobile deployment.
• Ergonomic tactile membrane keypad with reinforced actuation life (>1 million cycles), designed for gloved-hand operation in cold storage or PPE-restricted zones.
• Modular mounting system featuring adjustable stainless steel U-bracket, allowing wall, pedestal, or recessed installation per ANSI/ISA-71.04 G2 environmental classification guidelines.

Sample Compatibility & Compliance

The i-D33XW accommodates bulk solids, packaged goods, totes, drums, and palletized loads up to its maximum capacity (model-specific; consult datasheet for exact range). Its smooth, crevice-free stainless steel surface meets FDA 21 CFR Part 110 hygiene requirements for food contact zones and supports validation under EU GMP Annex 11 for electronic records. The scale complies with international metrological standards including OIML R76-1 (non-automatic weighing instruments), NTEP Certificate of Conformance (for US commercial use), and CE marking per MID 2014/32/EU. All firmware and calibration procedures are traceable to NIST-traceable reference masses and support GLP/GMP audit trails when paired with compliant data management software.

Software & Data Management

The embedded firmware supports real-time data streaming via RS232 (ASCII protocol, configurable baud rates) to label printers, PLCs, or MES systems. Optional USB or Ethernet interfaces enable integration with laboratory information management systems (LIMS) or enterprise resource planning (ERP) platforms using standard TCP/IP or HID protocols. OHAUS SmartConnect™ software (sold separately) provides secure, time-stamped data logging, user access control (role-based permissions), and electronic signature capability compliant with FDA 21 CFR Part 11. Audit logs record all critical events—including calibration, zeroing, mode changes, and parameter edits—with immutable timestamps and operator IDs.

Applications

• Food & Beverage: In-line checkweighing of prepackaged products (e.g., meat trays, dairy tubs, frozen meals) prior to case packing; batch weighing of raw ingredients in wet processing areas.
• Pharmaceuticals: Weighing of intermediate containers during API synthesis; verification of tablet blister pack fill weights in humidity-controlled cleanrooms.
• Chemicals & Plastics: Dispensing of liquid additives or polymer pellets in corrosive ambient conditions; drum filling verification with tare memory and gross/net switching.
• Logistics & Warehousing: Pallet accumulation for outbound shipment reconciliation; dimensional weight calculation when integrated with optional height sensors.
• Recycling & Waste Management: Load verification of compacted waste bales under outdoor exposure; durability validated per ISO 14001 environmental management system requirements.

FAQ

What is the ingress protection rating of the indicator and load cell?
The indicator is rated IP66 (dust-tight and protected against powerful water jets); the load cell is rated IP67 (dust-tight and protected against immersion in water up to 1 m for 30 minutes).
Can the scale be calibrated internally without external weights?
Yes—it supports internal calibration via built-in reference mass compensation, reducing downtime during routine maintenance.
Is the battery replaceable by the end user?
The sealed lead-acid battery is field-replaceable using standard service tools; replacement kits include updated firmware patches for seamless integration.
Does the scale support dynamic weighing or motion tolerance?
No—this model is designed for static load measurement only; it does not incorporate motion compensation algorithms.
Are calibration certificates available with NIST traceability?
Yes—factory calibration reports with NIST-traceable documentation are provided upon request and comply with ISO/IEC 17025 requirements when performed by accredited service centers.