Youke YP1002 Precision Laboratory Balance (0.01 g Readability)
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | YP1002 |
| Capacity | 0–100 g |
| Readability | 10 mg |
| Pan Diameter | 130 mm |
| Dimensions (W×D×H) | 320 × 280 × 150 mm |
| Power Supply | AC/DC dual-mode |
| Interface | RS232C serial output |
Overview
The Youke YP1002 is a precision laboratory balance engineered for routine weighing tasks in educational labs, quality control environments, and light industrial applications. Utilizing electromagnetic force restoration (EMFR) sensing technology, the YP1002 delivers stable, repeatable measurements with 10 mg readability across its 100 g capacity range. Its design emphasizes operational robustness under variable ambient conditions—including minor air currents, temperature fluctuations, and low-level mechanical vibration—without requiring active draft shielding or external calibration weights for daily use. The balance conforms to fundamental metrological principles defined in OIML R76-1 (International Organization of Legal Metrology) for non-automatic weighing instruments, supporting Class II accuracy per ISO 9001-aligned internal calibration protocols.
Key Features
- Electromagnetic force compensation sensor architecture ensures high linearity and long-term stability without mechanical wear.
- Integrated metal base and reinforced chassis minimize resonance effects and improve resistance to floor-borne vibrations.
- Fast stabilization time (< 2 seconds typical) enabled by adaptive digital filtering and real-time drift compensation algorithms.
- Multi-unit conversion capability: g, oz, ct, dwt, grain, and tael—configurable via front-panel keypad.
- Application modes include piece counting (with sample count input), animal/dynamic weighing (with averaging over 3–10 seconds), and percent weighing relative to a reference mass.
- RS232C interface supports bidirectional communication with PCs, LIMS, or Excel-based data logging systems; compatible with standard terminal emulators and custom scripts using ASCII command protocol.
- AC/DC dual-power operation enables uninterrupted use during power transitions or field deployments with optional rechargeable battery packs (sold separately).
Sample Compatibility & Compliance
The YP1002 accommodates a wide range of solid and granular samples on its 130 mm stainless-steel weighing pan. Its open-top design permits direct placement of beakers, crucibles, petri dishes, and small containers up to 120 mm in height. While not rated for hazardous or corrosive substances without protective liners, the pan surface is chemically resistant to common solvents and cleaning agents. The device meets CE marking requirements for EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU. It supports GLP-compliant workflows through user-defined ID entry, timestamped weight records, and audit-ready data export—though full 21 CFR Part 11 compliance requires third-party software integration for electronic signatures and access controls.
Software & Data Management
Raw weight data is transmitted via ASCII-formatted RS232C packets at 9600 baud, 8N1 configuration. No proprietary drivers are required; standard COM port utilities (e.g., PuTTY, Tera Term) enable immediate capture. For automated reporting, users may implement Python, LabVIEW, or MATLAB scripts to parse incoming values and append metadata (operator ID, sample ID, location). Optional Youke-provided Windows utility offers basic charting, statistical summary (mean, SD, CV%), and CSV export. All firmware updates are delivered as signed HEX files via USB-to-serial adapter—no cloud dependency or online registration.
Applications
- Educational laboratories: Stoichiometric reagent preparation, density determination, and gravimetric analysis exercises.
- Pharmaceutical QC labs: Excipient batch verification, tablet weight uniformity checks (per USP <905>), and capsule filling validation.
- Food processing facilities: Portion control auditing, ingredient batching, and moisture loss tracking during drying trials.
- Materials testing: Powder flow characterization (via mass change monitoring), additive manufacturing feedstock verification, and catalyst loading consistency assessment.
- Environmental labs: Filter paper weighing pre/post-extraction in particulate matter (PM10/PM2.5) analysis per EPA Method 201A.
FAQ
Is the YP1002 suitable for ISO/IEC 17025-accredited testing?
It can serve as a secondary reference balance for non-critical tasks, but accredited labs must verify traceability to national standards (e.g., NIST SRM) and document uncertainty budgets per ISO/IEC 17025:2017 Clause 6.4. Internal calibration alone does not satisfy this requirement.
Does the balance support automatic internal calibration?
No—the YP1002 relies on external calibration weights (Class M2 or better) and manual calibration procedure initiated via front-panel menu.
Can the RS232C interface connect directly to a modern laptop without legacy ports?
Yes—using a certified USB-to-RS232 adapter (FTDI chipset recommended) and appropriate COM port configuration in host software.
What is the recommended recalibration frequency?
Daily before first use when employed in regulated environments; weekly in general lab settings—always after relocation, temperature shift >5°C, or mechanical shock.
Is the pan removable for cleaning?
Yes—the stainless-steel pan is secured by three screws and may be detached without tools; avoid submersion or ultrasonic cleaning to preserve load cell integrity.
