Yoke YP30002 Precision Electronic Balance
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Model | YP30002 |
| Type | Precision Laboratory Balance |
| Maximum Capacity | 3000 g |
| Readability | 10 mg |
| Calibration | Internal |
| Pan Diameter | 130 mm |
| Dimensions (W×D×H) | 270 × 190 × 110 mm |
| Power Supply | DC 6 V / 0.3 A (AC/DC adapter included |
Overview
The Yoke YP30002 is a high-stability precision electronic balance engineered for routine laboratory weighing tasks requiring consistent repeatability and reliable traceability in quality control, education, and general analytical environments. Operating on electromagnetic force compensation principle, the YP30002 delivers stable and drift-resistant measurements across its full 3000 g capacity range with 10 mg readability — meeting the performance criteria of Class II balances per OIML R76 and ISO 9001-compliant weighing processes. Its robust metal base and optimized mechanical architecture minimize vibration transmission and environmental interference, ensuring operational stability on standard lab benches without dedicated anti-vibration tables. Designed for daily use in regulated and non-regulated settings alike, the YP30002 supports foundational metrological integrity through internal calibration routines and intuitive operator interface.
Key Features
- Internal calibration system with one-touch activation, eliminating dependency on external weights and reducing calibration downtime.
- Electromagnetic force restoration sensor with temperature-compensated feedback loop for enhanced long-term stability and reduced zero drift.
- Stainless-steel weighing pan (Φ130 mm) mounted on a rigid die-cast aluminum base to resist torsional deformation and improve shock resistance.
- Multi-unit display capability: grams (g), carats (ct), ounces (oz), pounds (lb), and percent (%), supporting material density comparison and formulation workflows.
- Counting mode with automatic average piece weight calculation — ideal for inventory management and component verification in manufacturing QC labs.
- Dual-power operation: supplied with AC/DC adapter (6 V / 0.3 A); optional rechargeable battery enables portable deployment in field or mobile lab applications.
Sample Compatibility & Compliance
The YP30002 accommodates a broad spectrum of solid and granular samples, including powders, tablets, reagents, and small hardware components, within its 130 mm diameter pan. Its sealed sensor housing and IP42-rated enclosure provide protection against dust ingress and incidental splashes during routine handling. While not certified for hazardous area use, the balance conforms to CE marking requirements under the EU Measuring Instruments Directive (MID) for non-automatic weighing instruments. It supports GLP documentation practices via RS232 serial output (optional cable), enabling direct data capture into LIMS or Excel-based logbooks. Internal calibration traceability aligns with ISO/IEC 17025 clause 6.4.10 for equipment verification, and periodic verification can be performed using NIST-traceable Class M2 weights.
Software & Data Management
Data output is supported via standard RS232 interface (no proprietary drivers required), allowing seamless integration with third-party software including LabArchives, LabWare LIMS, and custom Python- or LabVIEW-based acquisition scripts. The balance transmits real-time weight values in ASCII format with configurable baud rates (9600–115200 bps) and optional time-stamp prefixing. Built-in memory retains last 99 weighing records locally, accessible via front-panel recall function. No embedded operating system or firmware update capability is provided — all configuration remains static post-manufacture to ensure deterministic behavior in audited environments. Audit trail functionality is not implemented onboard; however, timestamped data streams exported to external systems satisfy FDA 21 CFR Part 11 requirements when paired with validated acquisition software.
Applications
- Raw material receipt inspection in pharmaceutical excipient and nutraceutical manufacturing.
- Weighing of reference standards and working solutions in ISO/IEC 17025-accredited testing laboratories.
- Student experiments in university chemistry and physics teaching labs where cost-effective reliability is prioritized over ultra-high resolution.
- Batch record documentation in food processing facilities compliant with HACCP and BRCGS standards.
- Inventory reconciliation and component counting in electronics assembly and medical device production lines.
- Preparation of calibration standards for volumetric glassware verification (e.g., ASTM E542, ISO 4787).
FAQ
What is the recommended recalibration frequency for the YP30002?
Internal calibration should be performed at startup, after significant ambient temperature shifts (>5 °C), and before critical measurements. For GLP/GMP environments, a documented daily verification using a check weight is advised.
Does the YP30002 support external calibration with certified weights?
No — the YP30002 is equipped with internal calibration only. External calibration is not supported by design.
Can the balance be connected to a Windows PC without additional drivers?
Yes. When used with a standard RS232-to-USB adapter, the balance appears as a virtual COM port and communicates using standard ASCII protocols compatible with terminal emulators and spreadsheet macros.
Is the YP30002 suitable for weighing volatile solvents or low-mass samples below 100 mg?
Not recommended. With 10 mg readability and no draft shield, the YP30002 lacks the sensitivity and environmental isolation required for sub-100 mg measurements or highly volatile substances.
What is the warranty coverage and service support structure?
Yoke provides a 12-month limited warranty covering parts and labor. Technical documentation, including user manual and calibration certificate template, is available in English upon request from authorized distributors.
