OHAUS RC2000 Portable Counting Scale

Overview

The OHAUS RC2000 Portable Counting Scale is an industrial-grade counting and weighing instrument engineered for high-reproducibility piece-counting applications in manufacturing, warehousing, quality control, and inventory management environments. Utilizing advanced load cell technology and dynamic averaging algorithms, the RC2000 delivers rapid, stable weight readings—typically within one second—enabling efficient batch verification, component reconciliation, and parts-per-batch validation. Its portable architecture, integrated rechargeable power system, and ruggedized ABS housing with 304 stainless steel–laminated pan ensure operational reliability across factory floors, cleanrooms (non-sterile), and mobile inspection stations. Designed to meet metrological requirements for legal-for-trade applications in multiple jurisdictions, the RC2000 complies with OIML R76 (Class F2) and ASTM E74 Class 4 standards for verification scale intervals (e), supporting traceable calibration protocols aligned with ISO/IEC 17025–accredited laboratories.

Key Features

• Triple backlit LCD display: Dedicated count, gross weight, and status panels for simultaneous real-time monitoring without menu navigation interruption.
• Intelligent auto-optimization: Automatically calculates and refines unit weight (UW) based on sample size and statistical variance—reducing human error in UW entry and enhancing counting accuracy across heterogeneous batches.
• 30-user-configurable memory slots: Store part numbers, nominal unit weights, tolerance thresholds, and custom presets for rapid recall during multi-SKU operations.
• Visual and audible verification: Tri-color (red/yellow/green) status indicator with programmable buzzer alerts for underweight, overweight, or in-tolerance conditions—supporting inline QC pass/fail decision-making.
• Extended battery autonomy: Sealed lead-acid battery provides up to 210 hours of continuous operation on a single charge; includes low-battery warning and real-time charge-level indicator.
• Factory-ready ergonomics: Integrated carry handle, front-mounted spirit level, adjustable leveling feet, and configurable digital filtering (low/medium/high) for vibration-prone environments.
• Regulatory-ready functionality: Auto-tare, auto-zero tracking, auto-power-off (user-definable timeout), and password-protected menu lock to prevent unauthorized parameter changes—facilitating GLP-aligned documentation practices.

Sample Compatibility & Compliance

The RC2000 supports counting of discrete, uniform parts—including screws, washers, PCB components, medical device assemblies, and pharmaceutical packaging units—provided dimensional consistency meets ASTM E1089 criteria for counting-scale suitability. Its 300 × 225 mm pan accommodates trays, shallow bins, or nested fixtures. All models are certified to OIML R76-1 (2017) Class F2 and ASTM E74 Class 4 for verification scale interval (e), ensuring compliance with national weights and measures regulations in the U.S. (NIST Handbook 44), Canada (Measurement Canada), and EU member states. The IP42 ingress protection rating safeguards internal electronics against limited dust ingress and vertically falling water droplets—suitable for non-washdown industrial settings. Calibration verification is supported via external Class F1 or better test weights traceable to NIST or equivalent NMIs.

Software & Data Management

Data export is enabled via standard RS232 serial interface (no drivers required), compatible with industry-standard data acquisition software, MES platforms (e.g., Siemens Opcenter, Rockwell FactoryTalk), and Excel-based SPC tools. The RC2000 transmits ASCII-formatted strings containing count, weight, unit weight, deviation, and timestamp (when connected to a time-synchronized host). Optional OHAUS Logger Pro software (sold separately) enables automated logging, CSV export, audit trail generation, and basic statistical analysis (mean, SD, Cp/Cpk)—supporting FDA 21 CFR Part 11 compliance when deployed with electronic signature and audit trail configuration. Firmware updates are performed via RS232 using OHAUS-provided utilities; all configurations retain user-defined parameters after power cycle.

Applications

• Automotive and aerospace MRO: Fast verification of fastener kits, gasket sets, and sensor assemblies prior to line feed.
• Electronics manufacturing: High-speed counting of SMT components (resistors, capacitors, connectors) into reels or trays with ±0.1% counting repeatability.
• Pharmaceutical secondary packaging: Batch reconciliation of blister cards, vials, or syringes per carton—aligned with USP container closure integrity testing workflows.
• Distribution centers: Cross-dock verification of mixed-SKU pallets using stored part libraries and tolerance bands.
• Contract manufacturing: Audit-ready piece-count records for customer-facing QA documentation under ISO 9001:2015 Clause 8.5.2.

FAQ

What calibration standards are recommended for daily verification?
OHAUS recommends using Class F1 or better test weights traceable to NIST, PTB, or other signatory NMIs under the CIPM MRA. Daily zero and span checks should be performed before first use and after environmental shifts.
Can the RC2000 be integrated into a networked QA system?
Yes—via RS232, it interfaces with LabVantage, TrackWise, and custom Python/Node.js middleware using Modbus ASCII or proprietary ASCII protocols. Ethernet or Wi-Fi modules are not natively supported.
Does the RC2000 support dynamic weighing (e.g., in-motion counting)?
No—the RC2000 requires static loading for measurement integrity. Dynamic or conveyor-integrated counting requires OHAUS’s separate CS Series or Defender series with motion compensation firmware.
Is firmware update capability available in-field?
Yes—updates are delivered as .hex files via OHAUS Technical Support and applied using the included RS232 cable and OHAUS Firmware Utility (Windows only).
How is traceability maintained during regulatory audits?
All configuration changes, calibration events, and count logs (when exported) retain timestamps and operator IDs if paired with compliant host software. Internal event log stores last 500 operations with date/time stamps.