A given force is Applied over a given of a millimeter and expressed as penetration.
It consists of a head support mounted on a vertical rod which can be adjusted for height.
A rack and pinion and pointer assembly provides fine adjustment of a needle tip to sample and incorporates a slipping clutch mechanism which make reading of Penetration and subsequent resetting of a sample and accurate operation.
The dial is graduated from 0-400 in on tenth millimeter Sub Division.
The instrument is supplied with two samples containers made of aluminum.
The penetration is the distance in millimeter that a standard needle penetrates vertically into a sample of the material under fixed conditions of loading time and temperature.
This instrument measures the reading on round dial fitted on a Aluminum Painted stand having adjustable penetration needle, holder sample container and transfer dish.