Precisa XS3250C Precision Laboratory Balance
| Brand | Precisa |
|---|---|
| Model | XS3250C |
| Weighing Range | 3250 g |
| Readability | 10 mg |
| Taring Range | 3250 g |
| Reproducibility | ≤10 mg |
| Linearity Error | ±15 mg |
| Response Time | 2–3 s |
| Stability Setting | 3-step adjustable |
| Operating Temperature | 0–40 °C |
| Sensitivity Drift | ±2 ppm/°C (10–30 °C) |
| Supply Voltage | 115/230 V AC |
| Voltage Tolerance | +15% / −20% |
| Frequency | 50–60 Hz |
| Power Consumption | 6 VA |
| Display | Optional fluorescent display |
| Dimensions (L×W×H) | 210 × 340 × 89 mm |
| Pan Size | 170 × 170 mm (chrome-nickel steel) |
| Net Weight | 4.5 kg |
Overview
The Precisa XS3250C is a high-performance, entry-level precision laboratory balance engineered for routine weighing tasks in quality control laboratories, educational institutions, and industrial preparation areas. Based on electromagnetic force compensation (EMFC) technology, it delivers stable, drift-resistant measurements under variable ambient conditions. Its 3250 g capacity and 10 mg readability meet the requirements of general analytical workflows—including sample preparation, formulation checks, and bulk material verification—where high throughput and operational robustness are prioritized over microgram-level resolution. The balance complies with international metrological standards for non-automatic weighing instruments (OIML R76-1, EN 45501), and its design reflects Precisa’s Swiss engineering heritage in mechanical stability, thermal compensation, and long-term calibration integrity.
Key Features
- Three-step adjustable stability setting allows users to optimize response time versus display settling behavior—critical when weighing volatile or vibration-sensitive samples.
- Optional fluorescent display ensures legibility under low-light, high-glare, or oblique viewing conditions—eliminating parallax errors common in standard LCD interfaces.
- Internal self-calibration routine supports user-defined external weight calibration at any point within the weighing range, reducing dependency on certified mass standards and lowering long-term metrological maintenance costs.
- Auto-power-on functionality resumes operation after power interruption without manual reset—ensuring continuity in production-critical environments.
- Programmable auto-off delay minimizes energy consumption while preserving readiness; configurable timeout intervals align with ISO/IEC 17025-compliant lab SOPs for instrument idle-state management.
- Chrome-nickel steel weighing pan (170 × 170 mm) offers corrosion resistance and mechanical durability for repeated handling of abrasive or chemically active substances.
Sample Compatibility & Compliance
The XS3250C accommodates a broad spectrum of sample types—from powders and granules to packaged components and small assemblies—within its 3250 g load limit. Its wide operating temperature range (0–40 °C) enables deployment in non-climate-controlled settings such as warehouse QC labs or field service vehicles. The balance meets OIML R76-1 Class II accuracy requirements for non-automatic instruments and is suitable for applications governed by ISO 9001, ISO/IEC 17025, and GMP Annex 11 documentation practices. While not inherently 21 CFR Part 11 compliant out-of-the-box, its deterministic output behavior and traceable calibration history support integration into validated systems when paired with audit-trail-capable data acquisition software.
Software & Data Management
The XS3250C features an RS-232 interface for bidirectional communication with PCs or LIMS platforms. It supports ASCII-based data streaming with configurable delimiters and optional prefix/suffix identifiers—enabling seamless import into Excel, LabWare, or custom SQL databases. Firmware permits user-defined print formats for GLP-compliant record generation (e.g., timestamped weight + tare ID + operator code). Though no proprietary software is bundled, Precisa provides open protocol documentation to facilitate third-party driver development and integration into enterprise-wide instrument management systems.
Applications
- Raw material receipt inspection in pharmaceutical and food manufacturing facilities
- Weighing of reagents and standards during analytical method development and validation
- Batch reconciliation and packaging line checkweighing
- Student laboratory exercises requiring reliable, intuitive mass measurement
- Field-based environmental sampling where portability and low power draw are essential
FAQ
What calibration weights are required for routine verification?
A single Class M2 or better certified weight covering ≥20% of full scale (e.g., 1000 g) is sufficient for daily performance checks per EURAMET cg-18 guidelines.
Can the XS3250C be used in humid or dusty environments?
Its IP32-rated housing provides protection against vertically falling drops and limited dust ingress; however, continuous operation above 80% RH or in ATEX-classified zones is not recommended.
Is internal recalibration traceable to national standards?
Yes—the built-in calibration function references the instrument’s factory-established EMFC transfer curve, which is traceable to METAS (Swiss Federal Institute of Metrology) via Precisa’s accredited calibration certificate issued at time of manufacture.
Does the balance support unit conversion (e.g., g → oz, carat)?
Yes—seven selectable units are available: g, kg, lb, oz, ct, dwt, and grain—all applied consistently across net, gross, and tare modes.
How often should professional recalibration be scheduled?
Annual recalibration is advised for ISO/IEC 17025-accredited labs; frequency may increase based on usage intensity, environmental fluctuations, or internal risk assessment per Clause 6.5 of ISO/IEC 17025:2017.
