MODERNER PH-5859 Swing bar Hardness Tester with Persoz pendulum

Methods The hardness is evaluated by measuring the decay time of the pendulum swing. The pendulum is supported on the paint surface by two small stainless steel balls. There is a physical relationship between the oscillation time, amplitude, and geometric dimensions of a pendulum. The elasticity of the paint determines the hardness of the paint.
When the pendulum is placed in motion, the ball rolls back and forth across the surface and exerts pressure on the paint surface. Depending on the elasticity of the paint, the oscillations will be stronger or weaker. If there is no elasticity, the pendulum will vibrate more strongly. Highly elastic surfaces lead to faster decay.

The test is based on two types of pendulum bars:

This is a simple laboratory instrument for hardness measurement according to the method of König and Persoz described previously.

■Automatic counting and accordingly an audible signal when the deflection is as low as 3° (König) or 4° (Persoz)

■Record deflection using two photosensitive probes

■Digital counter

■The third photosensitive probe converts the König to Persoz measurement method

■Select button can display seconds or number of swings

standard

ASTM D4366, DIN 1522

Swing rod hardness meter X1, protective shell X1, release cable X1, Glass plate X1, horizontal X1, power cord X1, tool X1, swing rod X1, manual X1

[Note] Because the manufacturer's packaging may be updated or upgraded, the detailed packaging list shall be subject to the latest standard configuration of the manufacturer.