EWJ Precision Balance Series – High-Accuracy Laboratory & Jewellery Weighing

The EWJ Precision Balance Series by KERN offers high-quality, reliable, and high-accuracy weighing for laboratories, jewellery and gold trade, quality control, dental laboratories, and plastics technology. Designed with automatic internal adjustment, fast stabilisation, and versatile weighing functions, these balances ensure consistent precision for every application.

Built for repeatable, dependable results, the EWJ series supports checkweighing, statistical analysis, recipe formulation, and totalising functions, making it the ideal choice for laboratory and industrial weighing, as well as for precious metals and jewellery professionals.

Key Features

  • Automatic Internal Adjustment: Time-controlled every 2 hours, maintaining high accuracy independent of location

  • High-Resolution Weighing: Readability from 0.001 g to 0.1 g, depending on model

  • Tolerance Weighing (Checkweighing): Visual and audible signals for portioning, dispensing, or grading

  • USB and RS-232 Interfaces: Easy data transfer to PCs, printers, or lab software (optional Bluetooth available)

  • Capacity Display: The bar graph display shows the remaining weighing range

  • User-Friendly Operation: All primary functions have dedicated keys for intuitive control

  • Protective Draught Shield: Removable standard shields for stable measurements

  • Protective Working Cover: Included with all models for long-term durability

EWJ Precision Balance Models

EWJ 300-3

  • Weighing Capacity: 300 g | Readability: 0.001 g

  • Interfaces: RS-232, USB-Device, optional Bluetooth BTC/BLE

  • Weighing Space: W×D×H 134×128×80 mm

  • Applications: Jewellery and gold trade, laboratories, dental labs, plastics technology

EWJ 300-3H

  • Weighing Capacity: 300 g | Readability: 0.001 g

  • Large Glass Draught Shield: 3 sliding doors, W×D×H 155×175×217 mm

  • Applications: Jewellery, gold trade, quality control, laboratories, dental labs

EWJ 3000-2

  • Weighing Capacity: 3000 g | Readability: 0.01 g

  • Applications: Laboratory and industrial applications requiring higher capacity weighing

EWJ 600-1M / 600-2M / 600-2SM / 600-3

  • Weighing Capacity: 600 g | Readability: 0.001–0.01 g

  • Features: Optional verification for legal trade, high-resolution weighing for jewellery and laboratory applications

EWJ 6000-1M / 6000-1SM / 6000-2

  • Weighing Capacity: 6000 g | Readability: 0.01–0.1 g

  • High-Capacity Models: Suitable for industrial labs, quality control, and large-volume sample preparation

Typical Applications

  • Jewellery and gold trade

  • Laboratory weighing and analysis

  • Quality control in manufacturing

  • Dental laboratories

  • Plastics technology and material testing