PWC124 / PWC184 / PWC214 / PWC254 Series Precision Analytical Balances (Imported, UK-Made)

Overview

The PWC124, PWC184, PWC214, and PWC254 Series are high-precision analytical balances engineered for laboratory environments requiring consistent sub-milligram resolution and metrological reliability. Designed and manufactured in the United Kingdom, these balances operate on electromagnetic force compensation (EMFC) principles—ensuring stable, drift-free measurement performance across variable ambient conditions. With a fixed readability of 0.0001 g (0.1 mg) across all models, they meet the technical requirements for Class I analytical applications per OIML R 76 and ASTM E898-22. The series supports critical workflows in pharmaceutical QC, academic research, materials science, and regulatory-compliant manufacturing where traceable mass measurement is foundational to data integrity.

Key Features

• Electromagnetic force compensation sensor architecture delivering high reproducibility and minimal thermal drift.
• Internal motorized auto-calibration system triggered by time intervals or temperature fluctuations (±1.0 °C threshold), eliminating manual recalibration dependency while maintaining traceability.
• Dual-line backlit LCD display with real-time range tracking—visually indicating remaining capacity relative to current load, reducing overloading risk and supporting intuitive operation.
• Full tare range across all capacities, enabling sequential weighing of multiple samples without manual zero-resetting.
• Multi-unit support including g, mg, ct, oz, dwt, ozt, GN, N, TL.H, TL.S, TL.T, ti, MM, and others—facilitating cross-regional sample reporting and precious metals analysis.
• Programmable user access control with password protection and optional hardware lock interface for connected PCs—supporting audit trail requirements under GLP and GMP frameworks.
• Integrated application modes: parts counting, percentage weighing, dynamic/animal weighing, density determination (for solids and liquids), and custom-defined weighing protocols.

Sample Compatibility & Compliance

These balances accommodate standard laboratory vessels—including crucibles, weighing boats, and vials—within the 90 mm diameter stainless-steel pan. The included draft shield (202 × 158 × 215 mm) conforms to ISO 17025 environmental specifications for vibration- and airflow-sensitive measurements. All units are assembled under ISO 9001-certified production processes and undergo factory verification against national standards (UKAS-traceable). They support compliance with USP , EP 2.1.6, and JP 2.03 for analytical balance qualification. Optional IQ/OQ documentation packages and 21 CFR Part 11-compliant software modules are available for regulated environments requiring electronic signature and audit trail functionality.

Software & Data Management

Equipped with a standard RS-232 bidirectional serial interface, each balance integrates seamlessly with LIMS, ELN, and statistical process control systems. Data output formats include ASCII text with configurable delimiters and timestamping. Optional Windows-based PC software enables automated data logging, trend analysis, calibration history archiving, and PDF report generation—including uncertainty estimation per EURACHEM/CITAC guidelines. All firmware updates are delivered via secure USB or serial channel, preserving configuration integrity during maintenance cycles.

Applications

• Pharmaceutical formulation and content uniformity testing per USP .
• Reference standard preparation and assay dilution in QC laboratories.
• Gravimetric analysis in inorganic and analytical chemistry labs.
• Precious metal and gemstone valuation using carat and troy ounce units.
• Research-scale catalyst loading and nanomaterial dosing where mass accuracy directly impacts reaction stoichiometry.
• Teaching laboratories requiring robust, intuitive instrumentation for undergraduate metrology training.

FAQ

What calibration standards are supported?
The PWC series accepts external calibration weights certified to ISO/IEC 17025 and includes internal calibration mass traceable to UKAS-accredited references.
Is GLP-compliant data export possible?
Yes—when paired with optional compliant software, the balance generates timestamped, user-identified records with full audit trail, electronic signatures, and change history per FDA 21 CFR Part 11 Annex 11 requirements.
Can the balance operate on battery power?
No—the unit requires continuous 15 VDC input; no internal rechargeable battery is integrated.
What is the warranty coverage?
All models include a 36-month limited warranty covering parts and labor for defects in materials and workmanship under normal laboratory use.
Are service and calibration certificates available post-installation?
Yes—on-site or depot-based calibration services with ISO/IEC 17025-certified certificates are offered globally through authorized service partners.