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  • Master Catalogue 2025

List of products by brand KERN & SOHN GmbH

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KERN & SOHN GmbH Jewellery microscope KERN OZG 493

The specialist for jewellers and the gem industry

Optical systemGreenough
Tube typeBinocular
Ocular magnifications10 x
Ocular visual field20 mm
Magnification ratio5,1:1
Zoom [Min]0,7 x
Zoom [Max]3,6 x
IlluminanceReflected light, Transmitted light
Illumination type transmitted lightHalogen
Illumination type incident lightHalogen
Illumination intensity incident light10 W
Focusing mechanismcoarse drive
Working distance86 mm
Stand typepillar
Dimension (W×D×H)310×170×350 mm
€549.00 Regular price €610.00
KERN & SOHN GmbH KERN EWJ 300-3H Precision balance 1 mg

High-quality precision balance with automatic internal adjustment

TECHNICAL DATA

Weighing capacity [Max]300 g
Readability [d]1 mg
Linearity± 5 mg
Reproducibility2 mg
Stabilization time3 s
InterfacesRS-232 standard, USB-Device
Adjustment optionsInternal calibration (automatic)
Ambient temperature15 °C – 35 °C
Dimensions weighing surface (Ø)80 mm
Material draught shieldplastic, glass
Material housingplastic
Dimension housing (W×D×H)220×340×321 mm
Material weighing platestainless steel
Net weight approx.3,6 kg
Construction type of the scaleSingle-range balance
€558.00 Regular price €620.00