OHAUS Defender® 6000 Washdown Stainless Steel IP69K Scale
| Brand | OHAUS |
|---|---|
| Model | i-D61XWE300K1V8ZH |
| Protection Rating | IP68 & IP69K |
| Construction | 316 Stainless Steel (indicator housing, pan, frame, column except 300 kg/600 kg models), Hermetically Sealed Welded Load Cell |
| Certifications | NSF Certified for Food Equipment |
| Display | 6-digit, 20 mm high white LED (7-segment) |
| Weighing Modes | Standard Weighing, Parts Counting (APW-optimized), Percentage Weighing, Checkweighing, Piece Counting, Dynamic Weighing / Hold, Filling |
| Connectivity | Standard RS232, USB Host |
| Power | 100–240 VAC, 50/60 Hz Switching Power Supply |
| Overload Protection | 150% of capacity |
| Checkweighing Display | Tri-color LED matrix (8×16 pixels) |
| Features | GLP/GMP-compliant real-time clock, User-defined print templates, Keypad/menu lock, Adjustable environmental filtering, Auto-print trigger, Stability indicator, Underload/overload alerts, Auto-off timer, Auto-tare, Non-slip adjustable rubber feet |
Overview
The OHAUS Defender® 6000 Washdown Scale is an industrial-grade, hygienic weighing platform engineered for continuous operation in demanding wet, corrosive, and regulated production environments. Built upon Couette-flow load cell architecture with hermetically sealed, welded 316 stainless steel sensing elements, it delivers long-term metrological stability under repeated high-pressure washdown cycles. Its dual IP68 and IP69K ingress protection ratings—validated per DIN EN 60529 and ISO 20653—ensure full resistance to dust, steam, chemical disinfectants, and high-temperature, high-pressure water jets (up to 100 bar, 85 °C). Designed explicitly for compliance-driven sectors—including food processing, pharmaceutical manufacturing, and fine chemical synthesis—the scale meets NSF/ANSI 173 Class I requirements for food equipment and supports HACCP-based hygiene protocols through fully traceable, corrosion-resistant construction.
Key Features
- Hygienic 316 stainless steel construction: Indicator housing, U-shaped support frame, weighing pan, and vertical column (excluding 300 kg and 600 kg variants) are machined from electropolished 316 SS to inhibit microbial adhesion and resist chloride-induced pitting.
- IP69K-rated hermetic sensor assembly: Load cells are laser-welded into stainless steel housings with zero gasket interfaces, eliminating crevices where moisture or residue may accumulate.
- 6-digit, 20 mm white LED display with high-contrast 7-segment digits—optimized for visibility under ambient lighting up to 50,000 lux and across wide viewing angles (±60° horizontal, ±30° vertical).
- Tri-color LED checkweighing matrix (8×16 pixel): Provides intuitive visual feedback (green/yellow/red) aligned with user-defined tolerance bands, supporting dynamic line-speed verification without operator interpretation delay.
- Comprehensive overload protection: Mechanical and electronic safeguards limit stress on the load cell at 150% of rated capacity, preserving calibration integrity during accidental overloading.
- Configurable environmental filtering: Adaptive digital signal processing compensates for vibration, air currents, and thermal drift—critical in HVAC-unstable production zones or near packaging machinery.
- Full GLP/GMP audit trail capability: Real-time clock with battery-backed memory logs date/time stamps for all critical events—including tare, zero, calibration, print, and mode changes—meeting FDA 21 CFR Part 11 data integrity expectations when paired with compliant software.
Sample Compatibility & Compliance
The Defender 6000 Washdown accommodates bulk solids, pre-packaged goods, intermediate containers (e.g., IBCs, tote bins), and process vessels within its specified capacity range. Its smooth, crevice-free surface geometry complies with EHEDG Doc. 8 (2022) and EC 1935/2004 requirements for materials in contact with food. The absence of threaded fasteners, recessed screws, or non-integrated cable glands eliminates harborage points for biofilm formation. All electrical interfaces—including optional Ethernet and Wi-Fi modules—are housed behind IP69K-rated conduit entries, ensuring seamless integration into ISA-88/ISA-95 automation architectures. NSF certification confirms conformance with Section 4.2.1 (material safety), Section 5.1 (cleanability), and Section 6.3 (electrical safety) of NSF/ANSI 173.
Software & Data Management
The scale supports native ASCII protocol via RS232 and USB host for direct connection to label printers (Zebra, Sato), PLCs (Siemens S7, Rockwell ControlLogix), and MES systems (SAP ME, Werum PAS-X). Optional Ethernet/Wi-Fi enables OPC UA server functionality for secure, encrypted data exchange with SCADA platforms. Print templates are programmable via OHAUS ScaleMate™ configuration utility—supporting variable fields (batch ID, operator code, timestamp, tolerance status) and barcode symbologies (Code 128, GS1-128). All communication logs, calibration records, and user activity timestamps are exportable as CSV or XML for external LIMS or QMS ingestion. Audit trails retain 10,000+ events with tamper-evident hashing, satisfying ALCOA+ principles for data reliability.
Applications
- Food & Beverage: In-line checkweighing of baked goods, meat trays, and dairy products post-wash; ingredient batching in wet-mix areas; yield reconciliation at loading docks.
- Pharmaceuticals: Weighing of active pharmaceutical ingredients (APIs) in containment suites; formulation verification prior to granulation; tote-to-batch transfer validation under cGMP Annex 1.
- Chemicals: Corrosive liquid additive dispensing in catalyst synthesis lines; drum-filling verification for hazardous materials (UN-certified workflows); inventory reconciliation in solvent storage zones.
- Contract Manufacturing: Multi-client environment support via user-role access control (administrator/operator/auditor), enabling shared infrastructure without cross-contamination of calibration or configuration data.
FAQ
What certifications does the Defender 6000 Washdown hold for food-grade use?
It carries NSF/ANSI 173 Class I certification for food equipment, confirming compliance with material safety, cleanability, and structural integrity requirements under repeated sanitation cycles.
Can the scale be integrated into a validated manufacturing execution system (MES)?
Yes—via optional Ethernet or RS485 with Modbus TCP/RTU, and supported by OHAUS’ validation documentation package (IQ/OQ protocols, traceable firmware versioning, and electronic signature-ready audit logs).
Is the internal real-time clock battery-backed for power failure resilience?
Yes—the RTC retains time/date accuracy for ≥72 hours during AC power loss, ensuring uninterrupted GLP/GMP event timestamping.
Does the IP69K rating apply to the entire assembled unit—including cables and connectors?
Yes—when used with OHAUS-certified IP69K-rated cable glands and M12 or PG13.5 connectors, the full system maintains IP69K compliance per ISO 20653 testing protocols.
How is calibration traceability maintained across shifts and operators?
Each calibration event is logged with operator ID (if enabled), timestamp, reference weight value, deviation, and pass/fail status—exportable for regulatory review or internal quality audits.
