WEIGHT SETS CLASS E 1 Ohaus (30390907)

WEIGHT SETS CLASS E 1 Ohaus (30390907)

The WEIGHT SETS CLASS E 1 Ohaus (30390907) is an ultra-high-capacity precision calibration weight set developed for the most demanding mass calibration and verification applications. Manufactured in accordance with OIML Class E1 requirements and supplied with an ISO/IEC 17025 accredited calibration certificate, this set delivers exceptional accuracy, traceability, and long-term stability for advanced metrology and regulated laboratory environments.

This comprehensive E1 weight set covers an extended mass range from 1 mg up to 20 kg, with a total set capacity of 40 kg, making it suitable for calibration of analytical balances, precision balances, high-capacity balances, and mass comparators. Each weight is manufactured using one-piece construction to minimize uncertainty and ensure mechanical robustness. The set is supplied in a heavy-duty protective case designed to safely store, organize, and transport the weights while protecting them from contamination and mechanical damage.

Key Features

• OIML Class E1 classification for ultra-high accuracy mass calibration

• Supplied with ISO/IEC 17025 accredited calibration certificate

• Extremely wide mass range for micro-weight to very high-capacity calibration

• One-piece construction for maximum stability and minimal uncertainty

• Robust protective case included for secure storage and transport

• Designed for professional metrology, calibration, and regulatory laboratories

• Manufactured in the USA for assured quality and traceability

Technical Specifications

• OIML class: E1

• Calibration certificate: ISO/IEC 17025 accredited

• Weight set range: 1 mg to 20 kg

• Total set capacity: 40 kg

• Total pieces: 30

• Construction: One-piece

• Protective case dimensions (L × H × W): 29.718 × 50.038 × 62.484 cm

• Protective case: Included

• Country of origin: USA

Applications

• Calibration and verification of analytical, precision, and high-capacity balances

• Mass comparator calibration and reference standards

• National, accredited, and industrial metrology laboratories

• Pharmaceutical, chemical, and industrial quality control

• Regulatory compliance, validation, and audit support