Add-on of the 2-MN force standard machine for testing load cells

Oliver Mack

Abstract

This paper presents a new temperature chamber in combination with the 2-MNdeadweight force standard machine (FSM) which allows testing and certification of load cells with nominal loads up to 2 MN (200 t) by the Physikalisch-Technische Bundesanstalt (PTB). This facility is unique in Europe; for the first time it offers manufacturers and customers the possibility to certify load cells with very high nominal loads as used in the heavy industry for instance.<br /> In spite of a small installation space for the temperature chamber which is limited by the construction of the FSM the temperature chamber permits measurements in a temperature range from -20°C to +55°C combined with small spatial and temporal temperature gradients of < 0.2 K per 100 mm and per hour. Thus it fulfils entirely the requirements for testing load cells as defined in the OIML-Recommendation R60.

Keywords

temperature chamber, load cell, OIML R60

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IMEKO-TC3-2007-056u.pdf

DOI

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IMEKO TC

TC3 - Measurement of Force, Mass, Torque, and Gravity

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