Digital Length Comparator

This equipment is designed for precise measurement of length variations in cement and mortar specimens of different sizes, commonly used for expansion, shrinkage, and deformation studies. Due to varying specimen lengths, reference rods are not supplied as standard and must be ordered separately. A detailed specification table is available to assist in selecting the appropriate reference rods quickly and accurately.

The apparatus features a rigid two-column steel frame that ensures excellent stability during measurements. An adjustable top anvil allows the instrument to accommodate specimens of varying lengths with ease.

A high-precision digital gauge (12.5 mm range × 0.001 mm resolution) provides accurate and repeatable readings. The compact and robust design makes it suitable for routine laboratory use.

Technical Specifications:

  • Frame: Two-column rigid steel structure
  • Top anvil: Adjustable to suit specimen length
  • Digital gauge range: 12.5 mm
  • Digital gauge resolution: 0.001 mm
  • Overall dimensions: 180 × 180 × 490 mm

Applicable Standards:

ASTM C490, UNI 8147, UNI 8148, UNI 8520:22, UNI 6687, EN 1367-4, EN 12617-4, EN 12808-4, EN 680 ASTM C151

Digital length Comparator

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