SUNNY HENGPING MP51001 Precision Electronic Balance with Square Pan

Overview

The SUNNY HENGPING MP51001 is a general-purpose precision electronic balance engineered for consistent, reliable mass measurement in routine laboratory, educational, and light industrial environments. Based on electromagnetic force compensation (EMFC) transduction technology, the MP51001 delivers stable readings under variable ambient conditions by actively maintaining equilibrium between the electromagnetic restoring force and gravitational load on the square weighing pan. Its 5100 g maximum capacity and 0.1 g readability make it suitable for applications requiring moderate resolution without ultra-micro sensitivity—such as sample preparation, reagent dispensing, formulation checks, and quality control inspections where trace-level accuracy is not mandated but reproducibility and operational robustness are critical. Designed and manufactured in Shanghai, the unit complies with fundamental metrological requirements outlined in OIML R76-1 (2017) for non-automatic weighing instruments of Class III accuracy, and supports traceable calibration via external standard weights.

Key Features

• Electromagnetic force compensation (EMFC) sensor architecture ensures high long-term stability and minimal drift across temperature gradients (5–40 °C operating range).
• Square stainless-steel weighing pan (180 × 156 mm) optimized for uniform load distribution and compatibility with standard lab containers, beakers, and weighing boats.
• Nine-step adjustable weighing speed — enabling operator selection between rapid stabilization (<1.5 s) for gross weighing and enhanced filtering for vibration-sensitive environments.
• Adjustable auto-zero tracking function mitigates minor air current or thermal effects without compromising measurement integrity.
• Integrated bubble level and adjustable feet ensure mechanical leveling prior to operation—a prerequisite for achieving stated repeatability (±0.1 g) and linearity (±0.2 g).
• Four-stage anti-vibration design absorbs low-frequency floor-borne disturbances typical in shared lab spaces or near centrifuges and HVAC systems.
• Full-range tare functionality permits subtraction of container mass up to 5100 g, supporting sequential multi-sample weighing protocols.
• RS232 serial interface enables direct data logging to PCs or LIMS platforms; compatible with standard terminal emulation software and basic ASCII data capture scripts.
• Dual power operation: mains-powered (AC adapter included) or battery-operated (rechargeable polymer lithium cell, >20 h continuous use per charge).

Sample Compatibility & Compliance

The MP51001 accommodates solid, granular, and powdered samples within its 5100 g limit and square pan geometry. It is not intended for volatile, corrosive, or hygroscopic substances without appropriate containment (e.g., sealed vessels or desiccators). The balance meets structural and performance criteria defined in ISO 9001-aligned manufacturing processes and conforms to CE marking directives for electrical safety (2014/35/EU) and electromagnetic compatibility (2014/30/EU). While not certified to GLP/GMP Annex 11 or FDA 21 CFR Part 11 out-of-the-box, its RS232 output supports integration into validated systems when paired with compliant data acquisition software featuring audit trail, user authentication, and electronic signature capabilities.

Software & Data Management

No proprietary software is bundled with the MP51001; however, its RS232 interface outputs ASCII-formatted weight data at 9600 baud (8N1), including timestamped values, unit identifiers, and stable-read status flags. This facilitates seamless ingestion into third-party platforms such as LabWare LIMS, Thermo Fisher SampleManager, or custom Python/Excel-based logging tools. For regulatory environments, users may implement middleware solutions that enforce data integrity controls—including immutable storage, user access logs, and checksum validation—thereby satisfying ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).

Applications

• Routine QC testing in food, pharmaceutical, and chemical manufacturing (e.g., batch ingredient verification, packaging net weight checks).
• University teaching labs for stoichiometric experiments, density determinations, and gravimetric analysis fundamentals.
• Environmental testing labs performing soil/sediment subsampling and filter weighing prior to extraction.
• Workshop and maintenance settings for tool inventory, component counting (piece mode), and consumables reconciliation.
• Field-deployable operations where portability, battery autonomy, and ruggedized housing enhance usability beyond fixed lab benches.

FAQ

Is internal calibration available on the MP51001?
No—the MP51001 uses external calibration only, requiring certified test weights traceable to national standards (e.g., NIST, PTB). Internal calibration is not supported.
What does “Level 4 anti-vibration” mean in practice?
It indicates mechanical damping tuned to suppress resonance frequencies below 10 Hz—sufficient for most benchtop installations but not for environments adjacent to heavy machinery or seismic activity.
Can the balance store measurement history locally?
No—internal memory is limited to configuration settings (e.g., unit preference, zero tracking threshold); all data must be captured externally via RS232.
Is the lithium battery replaceable by the end user?
Yes—the battery compartment is serviceable using standard Torx tools; replacement cells meet IEC 62133 safety specifications for portable lithium-ion packs.
Does the MP51001 support dynamic weighing (e.g., animal or moving-load modes)?
No—it is designed exclusively for static mass measurement; no motion-compensation algorithms or real-time averaging for unstable loads are implemented.