OHAUS Defender 3000 i-D33XW Waterproof Platform Scale

Overview

The OHAUS Defender 3000 i-D33XW is an industrial-grade waterproof platform scale engineered for reliability and operational continuity in demanding production, packaging, and quality control environments where moisture, frequent cleaning, or dust exposure is routine. Built on a robust mechanical architecture grounded in OHAUS’ long-standing expertise in precision weighing instrumentation, the i-D33XW employs a dual-layer protection strategy: its load cell is rated to IP67—ensuring full submersion resistance up to 1 meter for 30 minutes—while the indicator unit achieves IP66, safeguarding against powerful water jets and dust ingress. The scale operates on the principle of electromagnetic force compensation (EMFC) for high linearity and repeatability across its rated capacity range, delivering stable readings even under thermal fluctuation or mechanical vibration common in factory-floor installations.

Key Features

• Full 304 stainless steel construction—including indicator housing, pan, frame, and internal structural components—provides corrosion resistance and compatibility with aggressive cleaning agents (e.g., sodium hypochlorite, peracetic acid) used in food, pharmaceutical, and chemical manufacturing.
• Tri-color backlight LCD display with 45 mm digit height ensures immediate visual feedback during checkweighing operations; green indicates “in tolerance,” yellow signals “warning range,” and red denotes “out-of-spec” — eliminating reliance on operator interpretation and reducing human error in high-throughput lines.
• Dual power architecture supports uninterrupted operation: integrated sealed lead-acid battery enables portable or backup use (typical runtime >20 hours), while universal AC input (110–240 VAC, 50/60 Hz) allows global deployment without voltage conversion hardware.
• Four preconfigured application modes—Standard Weighing, Piece Counting, Checkweighing, and Accumulation—are accessible via tactile membrane keys designed for gloved-hand operation and resistant to repeated sanitation cycles.
• Modular connectivity options include standard RS232 for legacy label printers and PLC integration; optional USB (HID or virtual COM) and Ethernet (TCP/IP) interfaces support modern MES/SCADA data capture, enabling real-time weight logging and traceability alignment with Industry 4.0 infrastructure.

Sample Compatibility & Compliance

The i-D33XW is validated for use with solid, semi-solid, and packaged goods across temperature ranges from 10 °C to 40 °C and relative humidity up to 90 % RH (non-condensing). Its stainless-steel pan geometry accommodates irregularly shaped items, nested containers, and tote bins up to 150 kg (model-specific capacity). From a regulatory standpoint, the scale meets the mechanical and metrological requirements of OIML R76-1 (2021) for non-automatic weighing instruments, and its design supports compliance with hygiene-critical standards including EHEDG Doc. 8 (for equipment surface finish), ISO 22000:2018 (food safety management), and FDA 21 CFR Part 11 when paired with validated data acquisition software. Optional calibration certificate traceable to NIST or BIPM standards is available upon request.

Software & Data Management

While the i-D33XW operates as a standalone instrument, its serial and network interfaces enable seamless integration with third-party laboratory information management systems (LIMS), enterprise resource planning (ERP), and electronic batch record (EBR) platforms. When connected via RS232 or Ethernet, the scale transmits ASCII-formatted weight strings—including timestamp, mode identifier, gross/net/tare values, and pass/fail status—compatible with most industrial SCADA protocols (e.g., Modbus RTU/TCP). Audit trail functionality is maintained externally through host-system logging; for GLP/GMP environments, OHAUS recommends pairing the scale with certified middleware (e.g., OHAUS SmartLink or LabX-compatible drivers) to enforce user authentication, electronic signatures, and 21 CFR Part 11-compliant data integrity controls.

Applications

• Food & Beverage: In-line checkweighing of filled pouches, trays, and cases prior to metal detection or case packing; portion control verification in ready-meal assembly; ingredient batching in wet-process mixing stations.
• Pharmaceuticals: Weighing of primary packaging components (vials, syringes, blister cards) in Grade C/D cleanrooms; raw material receipt inspection under cGMP Annex 1 guidelines.
• Chemicals & Plastics: Dispensing of polymer pellets, catalyst powders, or liquid additives into reaction vessels; drum-filling verification with overfill/underfill alarms.
• Logistics & Warehousing: Pallet accumulation and outbound shipment verification; returnable container reconciliation in closed-loop supply chains.

FAQ

What is the maximum permissible error (MPE) for this scale under OIML R76?
The MPE complies with Class III accuracy per OIML R76-1: ±0.5e for loads ≤50 % of Max, and ±1.0e for loads >50 % of Max, where “e” is the verification scale interval.
Can the tri-color backlight be customized for specific tolerance bands?
Yes—tolerance thresholds and associated color mapping (red/yellow/green) are fully programmable via the front-panel menu or remote configuration using OHAUS Scale Setup Utility.
Is the load cell replaceable in-field without recalibration?
No—the IP67-rated load cell is hermetically sealed and calibrated at the factory; replacement requires return-to-factory service and full recalibration with certified test weights.
Does the scale support dynamic weighing or animal weighing mode?
No—this model does not include motion compensation algorithms or stabilization logic required for live-animal or conveyor-based dynamic weighing applications.
What is the expected service life of the integrated lead-acid battery?
Under typical charge/discharge cycling (1x daily), the battery maintains ≥80 % capacity for ≥3 years; OHAUS recommends annual capacity verification and replacement per preventive maintenance schedule.