OHAUS Defender 3000 i-D33P Industrial Platform Scale
| Brand | OHAUS |
|---|---|
| Model | i-D33P150B1X5ZH |
| Capacity | 150 kg |
| Readability | 5 g |
| Construction | Stainless Steel 304 Pan, Powder-Coated Carbon Steel Frame (Square Tube Design), IP65 Aluminum Load Cell |
| Display | 6-digit, 7-segment, Multi-Color Backlit LCD (45 mm digit height) |
| Power | AC Adapter (110–240 VAC) & Rechargeable Lead-Acid Battery |
| Interface | Standard RS232 |
| Optional | USB or Ethernet |
| Ingress Protection | IP65 (Sensor), IP54 (Indicator) |
| Operating Environment | Dry Industrial Environments |
| Compliance | CE, RoHS, ISO 9001 Manufacturing |
| Certifications | Verified per OIML R76 (Class III) and NTEP (for US commercial use where applicable) |
Overview
The OHAUS Defender 3000 i-D33P is a robust, Class III-certified industrial platform scale engineered for precision, durability, and operational flexibility in demanding production, warehousing, logistics, and quality control environments. Built upon OHAUS’ proven Defender platform architecture, the i-D33P integrates a high-stability aluminum load cell with IP65 protection, a corrosion-resistant 304 stainless steel weighing pan, and a rigid square-tube carbon steel frame with powder-coated finish—ensuring long-term mechanical integrity under repetitive loading and routine industrial handling. Its core measurement principle relies on electromagnetic force compensation (EMFC)-enhanced strain gauge technology, delivering consistent repeatability (±0.002% of full scale) and linearity across its 150 kg capacity range with 5 g readability. Designed for compliance with international metrological standards—including OIML R76 (Class III) and, where configured for U.S. markets, NTEP certification—the i-D33P meets statutory requirements for non-automatic weighing instruments used in trade, inventory management, and process control applications.
Key Features
- Multi-Color Backlit LCD Indicator: 6-digit, 7-segment display with 45 mm character height ensures legibility under low-light, high-glare, or dusty conditions typical of factory floors; dynamic color-coded backlighting (red/yellow/green) provides immediate visual feedback during checkweighing without requiring operator interpretation of numeric thresholds.
- Rugged Mechanical Architecture: Square-tube structural frame enhances torsional rigidity and minimizes deflection; 304 stainless steel pan resists chemical exposure and mechanical abrasion; IP65-rated aluminum load cell prevents ingress of dust and water jets; ABS polymer indicator housing with integrated metal U-bracket enables wall, bench, or pole mounting.
- Flexible Power & Connectivity: Dual-power operation supports continuous AC mains (110–240 VAC, 50/60 Hz) or autonomous battery-powered operation using an internal sealed lead-acid rechargeable unit (up to 80 hours runtime); standard RS232 interface allows direct connection to label printers, PLCs, or legacy MES systems; optional USB or Ethernet modules support modern data integration into ERP, LIMS, or Industry 4.0 infrastructure.
- Four Core Weighing Modes: Intuitive navigation between basic weighing, parts counting (with automatic average piece weight calculation), checkweighing (configurable high/middle/low zones), and accumulation—each mode accessible via tactile membrane keys optimized for gloved-hand operation.
Sample Compatibility & Compliance
The i-D33P is validated for use with solid, dry, non-hygroscopic samples within ambient temperature ranges of 10–40 °C and relative humidity ≤80% RH (non-condensing). Its IP54-rated indicator and IP65 load cell ensure reliable performance in controlled industrial settings—excluding washdown, explosive, or high-humidity environments. The scale conforms to ISO 9001-certified manufacturing processes at OHAUS’ Shanghai facility and carries CE marking for EMC and Low Voltage Directive compliance. For regulated industries, audit-ready functionality—including user-accessible calibration logs, date/time stamps on all weight records, and password-protected configuration menus—supports adherence to GLP, GMP, and FDA 21 CFR Part 11 principles when integrated with compliant data management systems.
Software & Data Management
While the i-D33P operates as a standalone instrument, its RS232 output transmits ASCII-formatted weight data in real time, enabling seamless integration with third-party software such as OHAUS Acquire™ (for Windows-based data capture), custom SCADA interfaces, or SQL-based warehouse management platforms. Optional USB or Ethernet modules extend compatibility with cloud-based analytics tools and allow firmware updates via secure HTTP(S) protocols. All communication protocols are documented in the publicly available OHAUS Communication Protocol Manual (Rev. 4.2), supporting deterministic response timing and error-checking (parity, stop bits, handshaking) to ensure data integrity in noisy electrical environments.
Applications
- Production line checkweighing of packaged goods (e.g., food trays, pharmaceutical blister packs, automotive components)
- Inventory reconciliation and cycle counting in distribution centers
- Raw material receipt verification and batch documentation
- Shipping manifest validation and parcel consolidation
- Parts counting for assembly line kitting and MRO stock control
- Accumulation of sequential weighments for bulk filling or batching operations
FAQ
Is the i-D33P certified for legal-for-trade use in the United States?
Yes—when ordered with NTEP certification (model suffix “-NTEP”), it is approved for commercial weighing applications subject to state weights and measures regulations.
Can the scale be calibrated internally without external weights?
No—internal calibration is not supported; full-scale calibration requires traceable test weights meeting ASTM E74 or ISO/IEC 17025 standards.
What is the warranty coverage for the i-D33P?
OHAUS provides a 3-year limited warranty covering parts and labor for defects in materials and workmanship under normal industrial use.
Does the device support multiple user profiles with role-based access?
No—the i-D33P does not include multi-user authentication; configuration changes require a master password, but no granular permission tiers are implemented.
Is the battery replaceable by the end user?
Yes—the sealed lead-acid battery is field-replaceable using standard service tools and OHAUS part number 82105012.

