Precisa XS1220M Precision Analytical Balance

Overview

The Precisa XS1220M is a high-precision analytical balance engineered for laboratories requiring consistent mass measurement performance under variable environmental conditions. Utilizing electromagnetic force compensation (EMFC) technology, the XS1220M delivers stable and traceable results across its full 1220 g capacity range with 1 mg readability. Its robust metal housing eliminates electrostatic interference—a critical advantage in low-humidity environments or when handling insulating samples. The instrument operates on the principle of restoring force equilibrium, where the current required to maintain the load pan at null position is directly proportional to sample mass, enabling high reproducibility and long-term calibration stability. Designed and manufactured in Switzerland, the XS1220M meets international metrological requirements for Class I (or “Analytical”) balances per OIML R 76-1 and EU Directive 2014/31/EU.

Key Features

• Adjustable stabilization time settings (0.04 s, 0.08 s, 0.16 s, or 0.32 s) allow optimization for dynamic weighing tasks without compromising accuracy.
• Electromagnetically shielded nickel-chromium alloy weighing pan (135 × 135 mm) ensures thermal and mechanical stability during extended use.
• Integrated draft shield (180 × 180 × 60 mm) provides effective airflow isolation while maintaining ergonomic access and visual clarity.
• Configurable auto-power-off function (5, 10, or 30 minutes of inactivity) extends battery life when operating on optional rechargeable power modules.
• RS232 serial interface supports bidirectional communication at baud rates from 300 to 19,200 bps, transmitting ≥20 data points per second for real-time integration with LIMS or QC software.
• Internal firmware supports over-the-air updates via direct download from Precisa’s official support portal—reducing downtime and ensuring alignment with latest regulatory firmware revisions.
• GLP-compliant data output includes operator ID, sample name, gross/net weight, balance model, and serial number—fully traceable for audit readiness.

Sample Compatibility & Compliance

The XS1220M accommodates a broad spectrum of solid and powdered samples typical in pharmaceutical QC, academic research, and materials science workflows. Its 1220 g capacity and 1 mg resolution make it suitable for formulation checks, reagent dispensing, and reference standard preparation. The balance complies with ISO/IEC 17025 requirements for calibration traceability and supports full documentation of calibration events—including external weight value entry during adjustment. All printed reports adhere to GLP principles, incorporating mandatory metadata fields for regulatory submissions. While not intrinsically rated for hazardous environments, its sealed metal enclosure and static-dissipative construction meet general laboratory safety expectations per IEC 61010-1.

Software & Data Management

Data integrity is maintained through configurable RS232 protocols and standardized ASCII output formatting. When connected to compatible printers or PCs, the XS1220M generates timestamped records containing user-defined identifiers, weight values, and instrument metadata—enabling seamless alignment with 21 CFR Part 11 compliant systems when paired with validated third-party software. Firmware updates are delivered via secure HTTPS channels from Precisa’s authorized server, preserving cryptographic authenticity and version control. Internal memory retains calibration logs and operational history, accessible via service mode for internal quality review.

Applications

• Pharmaceutical tablet weight uniformity testing per USP and
• Gravimetric preparation of standard solutions in analytical chemistry labs
• Quality control of active pharmaceutical ingredients (APIs) and excipients
• Research-scale synthesis monitoring requiring precise mass increments
• Calibration verification of lower-capacity balances using certified reference weights
• Inventory management and piece-counting operations (up to 9999 units per batch)

FAQ

Does the XS1220M support internal calibration?

No—the XS1220M requires external calibration using certified weights; however, it allows manual input of nominal weight values during calibration to accommodate non-standard or custom-certified masses.
Is the balance compliant with FDA 21 CFR Part 11?

The hardware itself does not provide electronic signature or audit trail functionality—but its deterministic data output and GLP-ready reporting structure enable full Part 11 compliance when integrated into validated software environments with appropriate access controls and electronic record management.
Can the display be operated in low-light conditions?

Yes—the high-brightness fluorescent display ensures legibility in ambient light ranging from 100 to 1000 lux; an optional LCD variant is available for environments sensitive to electromagnetic emissions or requiring reduced power consumption.
What is the temperature coefficient specification?

The balance exhibits a temperature-induced drift of ±2 ppm/°C across its operational range of +10 °C to +40 °C, supporting reliable use in climate-controlled laboratories without frequent recalibration.
How is traceability maintained during routine operation?

Each calibration event is logged with date/time stamp, operator ID, and applied weight value; these records are retained in non-volatile memory and exportable via RS232 for inclusion in laboratory quality documentation systems.