Defender® 6000 Washdown Scale – i-D61PW
| Brand | OHAUS |
|---|---|
| Origin | Jiangsu, China |
| Manufacturer Type | Direct Manufacturer |
| Regional Classification | Domestic (China) |
| Model | i-D61PW30K1R6ZH |
| Pricing | Upon Request |
Overview
The Defender® 6000 Washdown Scale – i-D61PW is an industrial-grade, high-protection weighing platform engineered for rigorous hygienic environments. Designed according to the principles of load cell-based force measurement, it employs hermetically sealed, welded 316 stainless steel strain-gauge sensors operating under the fundamental physics of Hooke’s Law—where applied mass induces proportional deformation in the sensing element, converted into a calibrated digital signal. Its dual IP68 and IP69K ingress protection ratings validate its operational integrity under continuous submersion (up to 1 m for 30 min) and high-pressure, high-temperature washdown cycles (80 °C, 100 bar, 15 s spray duration), making it compliant with EU Machinery Directive 2006/42/EC and suitable for integration into validated manufacturing systems governed by FDA 21 CFR Part 11, ISO 22000, and HACCP food safety protocols.
Key Features
- Hygienic construction: Food-grade polycarbonate indicator housing; U-frame and column structure fabricated from electropolished 316 stainless steel (excluding 300 kg and 600 kg variants); fully welded, IP69K-rated load cells with zero crevices or threaded joints
- NSF/ANSI Standard 173 certified for food equipment—verified for material compatibility, surface finish (Ra ≤ 0.8 µm), and resistance to common sanitizers (e.g., peracetic acid, sodium hypochlorite)
- 6-digit, 7-segment white-backlit LCD display with 45 mm character height for high-visibility operation under ambient lighting or PPE-equipped conditions
- Triple-color LED checkweighing bar (red/yellow/green) with configurable tolerance thresholds and real-time visual feedback
- 150% overload protection; auto-zero tracking; automatic tare; programmable auto-off and low-battery alert; key lockout and environmental filtering (adjustable damping)
- GLP/GMP-compliant real-time clock with timestamped data logging capability (when paired with optional RS-232 or USB interface)
Sample Compatibility & Compliance
The i-D61PW supports static and dynamic weighing of bulk solids, packaged goods, containers, and intermediate bulk containers (IBCs) across wet, corrosive, or temperature-fluctuating production zones. Its 316 stainless steel load-bearing surfaces resist pitting and chloride-induced stress corrosion cracking—critical in seafood processing, dairy blending, or API synthesis environments. The scale meets NSF/ANSI 173 Section 5.2 for structural integrity, Section 6.1 for electrical safety, and Section 7.1 for sanitation validation. It is also designed to support audit-ready documentation per ISO/IEC 17025 calibration traceability requirements when serviced by an accredited laboratory.
Software & Data Management
While the base unit operates as a standalone instrument, the i-D61PW supports bidirectional serial communication via RS-232 (standard) or optional USB-to-serial adapter. When connected to host systems, it transmits weight data with ASCII protocol formatting—including gross/net/tare values, stability status, and time stamps. Optional infrared magnetic coupling enables contactless data transfer without breaching the IP69K seal. Firmware supports GLP/GMP audit trails: all parameter changes (e.g., calibration, tare, filter settings) are logged with user ID, timestamp, and pre-/post-value entries—enabling full 21 CFR Part 11 compliance when deployed with validated LIMS or MES platforms.
Applications
- Food & beverage: In-line checkweighing of filled pouches, trays, and cartons; batch ingredient dosing verification; yield reconciliation at receiving and dispatch docks
- Pharmaceutical manufacturing: Weighing of excipients and intermediates in cleanroom-adjacent staging areas; container tare-and-fill operations under cGMP Annex 1 hygiene controls
- Chemical processing: Corrosive liquid drum filling verification; catalyst charge validation prior to reactor charging
- Logistics & warehousing: Palletized goods verification before cold-chain shipment; returnable packaging accountability in reusable container programs
FAQ
What certifications does the i-D61PW hold for food industry use?
NSF/ANSI Standard 173 certification for food equipment, confirming compliance with material safety, surface hygiene, and structural durability requirements.
Can the scale be calibrated in situ without disassembly?
Yes—internal calibration is supported via external weights conforming to OIML R 76 Class III or ASTM E74 standards; calibration logs are retained in non-volatile memory.
Is the indicator compatible with Ethernet or wireless networks?
No native Ethernet or Wi-Fi; however, third-party serial-to-Ethernet converters (e.g., Moxa NPort) may be integrated with validation support.
What is the maximum recommended ambient temperature during IP69K washdown?
80 °C for up to 15 seconds per cycle—consistent with EN 60529 and DIN 40050-9 test parameters.
Does the scale support multi-language UI or custom label printing?
The firmware supports English and Spanish language selection; label printing requires external thermal printers configured via RS-232 ASCII command sets.
