Yoke YP50000 Heavy-Duty Precision Balance
| Brand | Yoke |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | YP50000 |
| Instrument Type | General-Purpose Laboratory & Industrial Balance |
| Maximum Capacity | 50 kg |
| Readability | 1 g |
| Pan Dimensions | 300 × 400 mm |
| Overall Dimensions (W×D×H) | 530 × 300 × 680 mm |
| Power Supply | DC input with RS-232 communication interface |
| Construction | Die-cast aluminum housing |
| Display | Bright LED |
| Compliance | Designed for ISO/IEC 17025-aligned weighing environments |
Overview
The Yoke YP50000 is a heavy-duty general-purpose precision balance engineered for consistent, reliable mass measurement in industrial quality control, warehouse logistics, educational laboratories, and routine production environments. It operates on electromagnetic force compensation principle—leveraging high-stability ceramic-gold-coated capacitive load cell technology—to deliver robust performance under variable ambient conditions. With a maximum capacity of 50 kg and readability of 1 g, the YP50000 bridges the functional gap between analytical balances and industrial floor scales, offering laboratory-grade repeatability without requiring climate-controlled installation. Its design prioritizes operational resilience: die-cast aluminum housing provides inherent resistance to corrosion, mechanical shock, and electromagnetic interference (EMI), while the sealed keypad and optional dust cover ensure long-term integrity in non-sterile or semi-dusty settings.
Key Features
- High-stability ceramic-gold capacitive load cell delivering consistent linearity and minimal drift across temperature fluctuations
- Six tactile membrane keys with sealed construction for enhanced dust and spill resistance
- Built-in percentage weighing mode: calculates sample mass as a percentage of a preset reference value—ideal for formulation, blending, and batch consistency verification
- Mass change monitoring function: records net weight variation over user-defined time intervals—useful for evaporation rate studies or drying process validation
- Multi-unit display support: grams (g), carats (ct), ounces (oz), and user-definable custom units via front-panel programming
- Integrated counting mode with automatic average piece weight calculation—supports inventory management and parts reconciliation
- Overload protection system rated up to 150% of full scale, preventing sensor damage during accidental overloading
- RS-232 serial interface compliant with standard ASCII protocol for seamless integration with LIMS, MES, or spreadsheet-based data logging systems
Sample Compatibility & Compliance
The YP50000 accommodates bulk solids, packaged goods, containers, and irregularly shaped objects within its 300 × 400 mm stainless-steel weighing pan. Its large platform geometry enables stable placement of buckets, trays, or intermediate bulk containers (IBCs) without edge-loading risk. While not certified for Class I or II metrological approval (e.g., OIML R76 or NIST Handbook 44), the instrument meets functional requirements for non-regulated mass determination under ISO 9001, ISO 14001, and internal QC protocols. Data output via RS-232 supports traceability in GLP- and GMP-aligned workflows when paired with validated software that implements audit trail, electronic signature, and user access controls per FDA 21 CFR Part 11 guidelines.
Software & Data Management
No proprietary software is bundled; however, the RS-232 interface is fully compatible with industry-standard terminal emulators (e.g., Tera Term, PuTTY) and third-party data acquisition platforms including LabVIEW, MATLAB, and Excel-based VBA macros. Output format is ASCII-delimited (tab or comma), enabling direct import into statistical process control (SPC) tools or ERP modules. Users may configure transmission parameters—including baud rate (9600 default), parity, stop bits, and auto-print trigger—via onboard menu navigation. All settings are retained after power cycling due to non-volatile memory architecture.
Applications
- Raw material receipt inspection in food, chemical, and pharmaceutical manufacturing
- Batch ingredient dispensing and formulation verification in pilot-scale production
- Inventory reconciliation and piece-counting in distribution centers
- Moisture loss monitoring during thermal treatment or desiccation trials
- Calibration verification of lower-capacity balances using calibrated weights
- Student experiments in physics and materials science laboratories requiring sub-gram resolution at multi-kilogram ranges
FAQ
What is the recommended calibration frequency for the YP50000?
Calibration should be performed before first use, after relocation, following any mechanical impact, and at intervals defined by internal SOPs—typically daily for critical applications or weekly for general-purpose use. External calibration with Class M2 or better weights is required.
Does the YP50000 support internal calibration?
No—it relies on external calibration weights. Internal motorized calibration is not implemented in this model.
Can the balance operate on battery power?
No—the unit requires a regulated DC power adapter (input specifications provided in manual); no onboard battery option is available.
Is the RS-232 interface optically isolated?
No—electrical isolation is not integrated; users deploying in electrically noisy environments should consider adding an external RS-232 isolator module.
What environmental conditions affect accuracy?
Drift may occur outside 10–30 °C ambient range or under >80% RH without condensation. Avoid placement near HVAC vents, vibrating machinery, or strong magnetic fields.
