Hengping JY1002 Precision Electronic Balance
| Brand | Hengping |
|---|---|
| Origin | Shanghai, China |
| Model | JY1002 |
| Instrument Type | Precision Balance |
| Maximum Capacity | 100 g |
| Readability | 0.01 g |
| Calibration Method | External |
| Repeatability | ≤ ±0.01 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 |
Overview
The Hengping JY1002 Precision Electronic Balance is a compact, cost-effective laboratory balance engineered for routine mass measurement tasks requiring 0.01 g readability and reliable repeatability. Built upon a strain-gauge transducer architecture integrated with an embedded microprocessor control system, the JY1002 delivers stable, drift-compensated weighing results under standard ambient laboratory conditions (20–25 °C, <70% RH, minimal air currents). Its design adheres to fundamental metrological principles defined in OIML R76-1 and ISO/IEC 17025–compliant weighing practices, making it suitable for non-regulated quality control, educational demonstrations, and preparatory sample handling workflows. While not certified for Class I or II legal-for-trade applications, the JY1002 meets functional performance expectations for general-purpose precision balances used in academic teaching labs, vocational training centers, and light industrial process support.
Key Features
- Strain-gauge load cell with temperature-compensated signal conditioning for consistent linearity across the full 0–100 g range
- Automatic tare function with full-scale tare memory—retains zero offset after power cycle
- Unit conversion capability: supports g, oz, ct, and pcs (piece counting mode with user-defined reference weight)
- External calibration compatibility using certified Class M2 or better weights (e.g., 100 g standard)
- Compact footprint (225 × 185 × 55 mm) and low power consumption (3 VA), enabling deployment on shared benchtops or mobile carts
- Backlit LCD display with 18-mm digit height for clear visibility under varied lighting conditions
- Stainless steel weighing pan (Φ110 mm) with removable draft shield-compatible geometry
Sample Compatibility & Compliance
The JY1002 accommodates solid, granular, and low-viscosity liquid samples placed directly on its stainless steel pan or within compatible disposable containers (e.g., weighing boats, vials, crucibles). It is not intended for volatile solvents, corrosive substances, or high-moisture-content materials without appropriate containment. The balance complies with electromagnetic compatibility requirements per GB/T 18268.1–2010 (equivalent to IEC 61326-1) and basic safety standards per GB 4793.1–2007 (IEC 61010-1). While it does not carry CE marking for EU market placement or NIST-traceable factory certification, its performance aligns with ASTM E1223–22 guidelines for selecting and verifying balances in non-critical analytical contexts.
Software & Data Management
The JY1002 operates as a standalone instrument without proprietary software or USB/RS232 connectivity. All operations—including tare, unit switch, counting initialization, and external calibration—are executed via front-panel membrane keys. No audit trail, electronic signature, or data export functionality is provided; therefore, it is not compliant with FDA 21 CFR Part 11 or GLP/GMP data integrity requirements. Users must manually record measurements in bound lab notebooks or validated LIMS entries. For environments requiring traceable digital records, integration with third-party serial-to-USB adapters and generic terminal emulators is possible but unsupported by Hengping and introduces unvalidated data pathways.
Applications
- Student laboratories: quantitative chemistry experiments, molar mass calculations, reagent dispensing verification
- Vocational education: metrology fundamentals, calibration technique training, tolerance analysis exercises
- Quality assurance in small-scale manufacturing: incoming raw material checks, batch sampling, packaging weight spot-checks
- Agricultural extension services: seed count verification, fertilizer blend proportioning
- Pharmaceutical pre-formulation: excipient weighing prior to high-precision analytical balance use
- Maintenance workshops: tool inventory reconciliation, component weight logging
FAQ
What is the recommended calibration frequency for the JY1002?
Calibration should be performed before first use, following any significant environmental shift (e.g., >5 °C temperature change), and at least once per shift when used in production environments. External calibration with traceable weights is mandatory.
Can the JY1002 be used in a fume hood?
Yes—provided the unit is mounted on a vibration-isolated surface and airflow across the pan is minimized. Draft shields are not included but may be retrofitted using standard acrylic enclosures.
Does the balance support internal calibration?
No. The JY1002 requires external calibration only; no motorized or built-in calibration mass is present.
Is the display readable in low-light conditions?
Yes—the backlit LCD remains legible under typical laboratory lighting and provides adequate contrast in dimmed settings.
What maintenance is required to ensure long-term accuracy?
Regular cleaning of the pan and housing with isopropyl alcohol; periodic inspection of leveling feet and shock-absorbing feet for wear; avoidance of overloading beyond 100 g.
