OHAUS Navigator NVT6200ZH Portable Balance
| Brand | OHAUS |
|---|---|
| Origin | Shanghai, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic (China-manufactured) |
| Model | NVT6200ZH |
| Instrument Type | General-Purpose Portable Balance |
| Maximum Capacity | 6200 g |
| Readability | 1 g |
| Repeatability | ±1 g |
| Calibration Method | External |
| Overload Protection | Up to 400% of rated capacity |
| Transport Lock | Integrated mechanical sensor lock |
| Compliance | Designed to meet ISO 9001 manufacturing standards and supports GLP/GMP documentation workflows |
Overview
The OHAUS Navigator NVT6200ZH is a robust, general-purpose portable balance engineered for reliability and operational efficiency in non-regulated and light-regulated environments. Based on electromagnetic force compensation (EMFC) transduction technology, it delivers stable, drift-resistant weighing results under variable ambient conditions—including moderate temperature fluctuations, air currents typical of workshop or field settings, and minor vibration. With a 6200 g maximum capacity and 1 g readability, the NVT6200ZH serves as a primary weighing instrument for bulk material handling, raw material receipt inspection, packaging verification, educational demonstrations, and preparatory lab tasks where high-resolution microgram-level precision is not required. Its compact footprint, integrated carrying handle, and battery-powered operation (optional AC adapter support) enable seamless deployment across laboratory benches, production lines, warehouse docks, and mobile quality control stations.
Key Features
- Fourfold Overload Protection: Mechanical impact resistance up to 400% of full scale (24.8 kg) safeguards the load cell from accidental overloading during rapid material dumping or pallet-scale transfers—significantly extending service life without recalibration.
- Integrated Transport Lock: A dedicated mechanical locking mechanism immobilizes the weighing sensor during transit, preventing damage to the EMFC system and preserving factory calibration integrity upon installation.
- Rapid Stabilization: Achieves stable readout in ≤1 second under standard environmental conditions (20–25°C, <60% RH), minimizing operator wait time and supporting high-throughput batch verification workflows.
- User-Centric Interface: Large, backlit LCD display with intuitive soft-key navigation; unit switching (g, oz, ct, lb:oz) and simple tare/zero functions accessible without menu diving.
- Dual Power Flexibility: Operates on rechargeable Ni-MH batteries (up to 120 hours continuous use) or optional 12 V DC adapter—ideal for locations lacking consistent AC access.
- IP42-rated Housing: Dust- and splash-resistant enclosure protects internal electronics from incidental exposure during industrial or educational use.
Sample Compatibility & Compliance
The NVT6200ZH accommodates samples up to 6200 g in mass and up to 220 mm × 220 mm in base dimension, compatible with standard weigh boats, beakers, trays, and tote containers. While not certified for Class I or II metrological applications per OIML R76 or NIST Handbook 44, its performance aligns with ASTM E1223-22 guidelines for “standard reference balances used in non-critical comparative weighing.” It supports basic traceability through external calibration using Class M2 or better weights (calibration certificate recommended). The device includes configurable print output (via optional RS-232 or USB-to-serial interface) compatible with legacy label printers and LIMS data capture systems—facilitating alignment with internal QA documentation requirements under ISO/IEC 17025 or GxP-aligned SOPs.
Software & Data Management
The NVT6200ZH operates as a standalone instrument with no embedded firmware-based data logging. However, its serial communication interface (RS-232 standard, 9600 baud, ASCII protocol) enables direct integration with third-party data acquisition software (e.g., LabX Lite, Datalogic WinWedge, or custom Python/Excel VBA scripts). All transmitted data include timestamp (if host-synchronized), gross/net/tare identifiers, unit code, and stability flag—supporting audit-ready records for internal process validation. Optional OHAUS AC-USB cable provides plug-and-play connectivity to Windows/macOS workstations. No FDA 21 CFR Part 11 compliance features (e.g., electronic signatures, audit trails) are included, consistent with its classification as a non-critical utility balance.
Applications
- Raw material intake verification in food, chemical, and pharmaceutical contract manufacturing facilities
- Batch component dispensing and formulation pre-checks in R&D labs
- Inventory reconciliation and warehouse stock auditing
- Student laboratory exercises in physics, chemistry, and materials science curricula
- Field-based agricultural yield sampling and feedlot ration monitoring
- Pre-shipment weight validation for e-commerce fulfillment centers
FAQ
What calibration weights are recommended for routine verification?
Class M2 stainless steel weights (±30 mg tolerance at 6200 g) conforming to ISO 9001 calibration intervals are advised. Annual third-party calibration is recommended for GxP-adjacent use.
Can this balance be used in a humid environment?
Yes—the IP42 rating provides protection against vertically falling water droplets and limited dust ingress. Avoid prolonged exposure to condensation or direct spray.
Is internal calibration available?
No—this model supports external calibration only, requiring user-provided certified weights.
Does it meet any international metrological standards?
It complies with manufacturer specifications per ISO 9001:2015 design and production controls but is not type-approved per OIML R76 or NIST Handbook 44 for legal-for-trade applications.
How is transport damage prevented?
The built-in mechanical transport lock physically decouples the load cell from the pan assembly—engaged before shipment and disengaged only after final placement on a level surface.
