OHAUS Defender® DF52XW3000WVZH Heavy-Duty Platform Scale
| Brand | OHAUS |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Original Equipment Manufacturer (OEM) |
| Country of Origin | China |
| Model | DF52XW3000WVZH |
| Price Range | USD 1,400 – 4,200 |
| Max Capacity | 3,000 kg |
| Readability | 0.5 kg |
| Platform Size | 1,200 × 1,500 mm |
| Construction | Carbon Steel Frame with Textured Steel Deck / Optional Stainless Steel Version |
| Sensor Type | 4 × OIML R60–Certified Alloy Steel Load Cells (IP67) / Stainless Steel Welded Hermetic Sensors (IP68) |
| Enclosure Rating | IP65 Junction Box (Standard), IP67 Scale Body |
| Interface Options | RS232 (Standard), Optional Bluetooth/Wi-Fi, RS485/USB/Ethernet, 4–20 mA / 0–10 VDC Analog Outputs, 2-In/4-Out Digital I/O |
Overview
The OHAUS Defender® DF52XW3000WVZH is a high-capacity, industrial-grade platform scale engineered for precision static and dynamic weighing in demanding production, logistics, and quality control environments. Designed around the fundamental principle of strain-gauge load cell transduction—where mechanical deformation under load generates proportional electrical resistance changes—the DF52XW3000WVZH delivers consistent, traceable mass measurement up to 3,000 kg with 0.5 kg readability. Its structural architecture integrates mechanical robustness with metrological integrity: the low-profile 90 mm deck height minimizes loading effort while maintaining rigidity, and the dual-layer frame—comprising a 6 mm textured steel or stainless steel top plate and a 4 mm U-channel base—has undergone 500,000 full-scale fatigue cycles per OIML R60 compliance protocols. This ensures long-term repeatability and resistance to torsional stress, thermal drift, and floor vibration—critical for GLP-aligned weight verification in manufacturing QA/QC workflows.
Key Features
- Four OIML R60–certified alloy steel load cells (IP67 rated); stainless steel variant features hermetically welded IP68 sensors for washdown and corrosive environments
- Full stainless steel junction box (IP65) with sealed cable entries and redundant grounding paths for EMI resilience
- Low-clearance 90 mm deck height with reinforced U-channel subframe—optimized for forklift and pallet jack compatibility
- Textured steel deck (6 mm thickness standard; 8 mm for ≥5,000 kg models) prevents slippage and resists impact abrasion
- Modular interface architecture: RS232 standard; optional industrial-grade wireless (Bluetooth 5.0 or IEEE 802.11n), RS485/USB/Ethernet for SCADA integration, and analog/digital I/O for PLC interfacing
- Real-time firmware-upgradable microprocessor with dual ADC channels for noise rejection and temperature compensation
Sample Compatibility & Compliance
The DF52XW3000WVZH accommodates irregularly shaped, heavy-duty loads—including palletized goods, drums, castings, and agricultural bulk commodities—without compromising linearity or hysteresis performance. Its mechanical design conforms to OIML R76-1 (Non-Automatic Weighing Instruments) and meets NTEP Class III requirements for commercial applications in North America. For regulated industries, the scale supports audit-ready operation when paired with OHAUS SmartLink™ software: full 21 CFR Part 11–compliant electronic signatures, user-level access controls, and immutable audit trails for calibration events, zero adjustments, and weight data exports. Optional stainless steel construction satisfies FDA 21 CFR 110 and EHEDG Guideline No. 8 for food-grade environments.
Software & Data Management
OHAUS SmartLink™ software provides secure, encrypted bidirectional communication via RS232 or Ethernet. It enables automated data logging with time/date stamps, configurable CSV/Excel export templates, and batch-level metadata tagging (operator ID, lot number, location). The embedded real-time clock synchronizes with NTP servers for ISO/IEC 17025–aligned timestamp integrity. All firmware updates are digitally signed and validated prior to installation. Data export formats comply with ASTM E2500–22 for raw instrument data archival, and optional OPC UA server modules allow direct integration into MES or SAP EWM systems without middleware.
Applications
- Warehouse receiving and shipping verification—real-time gross/net/tare calculation with automatic label printing via ZPL-compatible printers
- In-line checkweighing in packaging lines with programmable upper/lower limits and pass/fail LED indicators
- Inventory management of raw materials (e.g., metal ingots, plastic pellets) using counting mode with statistical sample averaging
- Process batching in chemical and feed manufacturing—via 4–20 mA analog output to control volumetric feeders or solenoid valves
- Quality assurance audits requiring documented traceability per ISO 9001:2015 Clause 7.1.5 and ISO/IEC 17025:2017 Section 6.4
- Field-deployed weighing in agriculture—resistant to dust, moisture, and mechanical shock per IP67 ingress protection
FAQ
Is the DF52XW3000WVZH certified for trade use in the United States?
Yes—when configured with NTEP-approved firmware and calibrated by an NIST-traceable provider, it meets NTEP Class III requirements for commercial weighing.
Can the scale interface directly with a Siemens S7 PLC?
Yes—via optional RS485 Modbus RTU or Ethernet/IP protocol modules; configuration files and register maps are provided in the OHAUS Industrial Integration Kit.
What is the maximum allowable off-center loading error at full capacity?
Per OIML R76-1 Annex D, the scale maintains ≤0.5 e (e = 0.5 kg) eccentric load error across all four quadrants at 3,000 kg.
Does the stainless steel version support CIP/SIP cleaning cycles?
The IP68 sensor variant and fully welded stainless enclosure meet EHEDG EL Class A criteria for repeated caustic/acid wash cycles at 85°C.
How is calibration traceability maintained during field service?
Internal calibration memory stores last calibration date, technician ID, standard mass value, and deviation logs—exportable as PDF or XML for internal audit review.
