KC Wire Strain Gages

Featuring a longer gage length, the KC series gages are wire strain gages suitable for mean strain measurement of concrete under test. Usually, a model with the gage length over 3 times longer than the maximum diameter of the aggregate (gravel, sand, etc.) is selected for the purpose.

Description

Major Properties
Materials Resistive element CuNi alloy wire
Materials Base Paper base + phenol-epoxy
Operating temperature in combination with major adhesives after curing (°C) EP-340: -55 to 150℃
CC-35: -30 to 120ºC
Operating temperature in combination with major leadwire cables (°C) Vinyl-coated flat cable (L-6, L-7): -10 to 80ºC
Self-temperature-compensation (°C) 10 to 60ºC
Applicable linear expansion coefficients (×10-6/℃) 11
Strain limits at normal temp. (approx. %) 1.8
Fatigue lives at normal temp. (times) 1.5 x 105 (±1500μm/m)
Types, lengths and codes of lead-wire cables pre-attached to KC
Model Vinyl-coated flat 2-wire cables Vinyl-coated flat 3-wire cables
Gage Pattern A1
15 cm L15C2R L15C3R
30 cm L30C2R L30C3R
1 m L1M2R L1M3R
3 m L3M2R L3M3R
5 m L5M2R L5M3R
Operating Temperature -10 to 80℃ -10 to 80℃
Remarks L-6, L-9 for ≥ 6 m L-7, L-10 for ≥ 6 m

*For other lead-wire cable lengths, contact us.

How to order

When ordering, suffix the lead-wire cable code to the model number with a space in between.

E.g.
For the gage with a vinyl-coated flat 2-wire cable 5 m long
→ KC-120-120-A1-11 L5M2R

If no lead-wire cable code is suffixed, the gage is delivered with gage leads only.
(Silver-covered copper wires 30 mm long)