Hengping JY2001 Precision Electronic Balance
| Brand | Hengping |
|---|---|
| Origin | Shanghai, China |
| Model | JY2001 |
| Instrument Type | Precision Balance |
| Maximum Capacity | 200 g |
| Readability | 0.001 g (1 mg) |
| Calibration Method | External Calibration |
| Repeatability | ≤ ±0.001 g |
| Pan Diameter | Φ110 mm |
| Dimensions (L×W×H) | 225 × 185 × 55 mm |
| Power Supply | 220 V, 50 Hz, 3 VA |
| Net Weight | 2.0 kg |
| Compliance | Designed for general laboratory use per ISO 9001-aligned manufacturing practices |
| Software Interface | None (standalone operation) |
Overview
The Hengping JY2001 Precision Electronic Balance is a compact, cost-effective analytical-grade weighing instrument engineered for reliable mass measurement in routine laboratory, educational, and industrial quality control environments. Built around a high-stability strain-gauge load cell and integrated single-chip microprocessor architecture, the JY2001 delivers consistent 1 mg readability across its full 200 g capacity range. Its measurement principle relies on precise analog-to-digital conversion of mechanical deformation induced by sample mass, with real-time digital filtering to suppress environmental vibration and thermal drift effects. Unlike analytical balances requiring draft shields or active temperature compensation, the JY2001 is optimized for stable ambient conditions (20–25 °C, <70% RH, minimal air currents), making it suitable for benchtop deployment in teaching labs, production line QC stations, and field-deployable calibration workflows. The device meets fundamental metrological requirements for Class II precision balances per OIML R 76-1 guidelines and supports traceable external calibration using certified weights (e.g., ASTM E617 Class M2 or better).
Key Features
- 1 mg readability (0.001 g) with 200 g maximum capacity — optimized for medium-precision applications including reagent preparation, sample aliquoting, and small-part counting.
- Automatic tare function with full-scale memory retention — preserves zero point after repeated taring without recalibration.
- Integrated piece-counting mode — calculates quantity based on user-defined average piece weight; supports up to 99,999 units per batch.
- Multiple unit conversion — toggles between grams (g), carats (ct), ounces (oz), and pounds (lb) via front-panel controls.
- Compact footprint (225 × 185 × 55 mm) and low power consumption (3 VA) — enables flexible placement on crowded lab benches or mobile carts.
- Robust ABS housing with stainless-steel weighing pan (Φ110 mm) — resistant to corrosion from common solvents and particulate abrasion.
- External calibration compatibility — accepts standard calibration masses traceable to national metrology institutes (e.g., NIST, PTB, NIM).
Sample Compatibility & Compliance
The JY2001 accommodates solid, granular, and powdered samples within standard laboratory containers (e.g., weighing boats, glass vials, aluminum pans). It is not designed for volatile, hygroscopic, or magnetic materials without appropriate containment. While not certified for GLP/GMP-regulated environments requiring audit trails or 21 CFR Part 11 compliance, the balance conforms to general-purpose metrological standards referenced in ISO/IEC 17025:2017 (Clause 6.4.3 on equipment suitability) and supports documentation of calibration events via external logbooks. Its construction adheres to IEC 61010-1 safety requirements for electrical equipment used in laboratory settings.
Software & Data Management
The JY2001 operates as a standalone instrument with no embedded software stack, firmware updates, or digital connectivity (RS-232, USB, or Bluetooth). Data output is limited to real-time display only; no built-in memory or export capability is provided. For laboratories requiring electronic recordkeeping, third-party serial interface adapters may be used to capture weight values into spreadsheet or LIMS platforms — however, such integration falls outside factory validation and requires user-established verification protocols per ALCOA+ principles.
Applications
- Academic instruction: Quantitative chemistry labs, physics mass-energy experiments, and engineering material density determinations.
- Industrial QC: Incoming raw material verification, batch weight consistency checks, and packaging net-content audits.
- Pharmaceutical support: Non-GMP auxiliary weighing tasks such as excipient pre-weighing, tablet sampling, and stability study sample preparation.
- Agricultural testing: Soil sample mass normalization prior to nutrient analysis, seed count verification, and feed formulation.
- Maintenance and calibration labs: Secondary standard transfer, toolroom inventory weighing, and workshop component verification.
FAQ
What calibration weights are required for the JY2001?
A certified 100 g or 200 g Class M2 (or better) weight, traceable to a national metrology institute, is recommended for full-span external calibration.
Does the JY2001 support internal calibration?
No — it relies exclusively on external calibration; no motorized or temperature-compensated internal mass is present.
Can this balance be used in a fume hood?
Not recommended — airflow disrupts stability; use only in still-air environments with minimal thermal gradients.
Is the weighing pan removable for cleaning?
Yes — the stainless-steel pan is mechanically secured and can be detached using standard tools for solvent-based decontamination.
What is the warm-up time before first use?
Minimum 30 minutes at stable room temperature to ensure thermal equilibrium of the load cell and electronics.
