Meetinstrumenten – Bakeliet, Glas, Hout, Metaal, Leder – 1940-1950 – graanvochtmeter

Rare early Franz Pfeuffer electrical grain moisture meter, manufactured in Tiefenstockheim, Germany, dating from approximately 1947–1955.Franz Pfeuffer founded his specialist company for milling technology in Tiefenstockheim in 1947. The company became known for professional measuring and laboratory equipment used in the grain, milling and agricultural industries. This instrument represents a very early period of the manufacturer’s production.The apparatus was designed for determining the moisture content of grain, indicated on the large analogue scale as “Wassergehalt %”. Grain samples were placed in the substantial metal measuring/compression chamber in the centre of the instrument and measured according to the corresponding grain and temperature calibration scales.The instrument is housed in its original solid wooden carrying case, constructed with traditional dovetail joints. The interior retains the measuring apparatus as well as the original accessories and reference scales. Among the visible original components are the heavy metal measuring/compression chamber, two black-handled operating rods, metal clamping device, coloured control buttons and adjustment control.The original calibration/reference tables remain mounted inside the wooden case and include information for different types of grain and temperature corrections.The original manufacturer’s identification plate is still present:Franz PfeufferIng. für MühlentechnikTiefenstockheim, GermanySerial No. 1610220 V / 50 HzAn additional original German instruction label survives... lees verder bij Catawiki