Page 25 - Energize April 2022
P. 25
NEWS
Hydraulic deadweight tester for calibrating
pressure measuring instruments
eadweight testers are accepted as the most accurate method for the calibration For fine adjustment, an adjustable
of electronic or mechanical pressure measuring devices. Instrotech is offering the volume with precision spindle is available.
DLR-Cal LDW series of deadweight testers, which are available in the ranges from 10 The weight applied is proportional to
bar to 1400 bar. the desired pressure and provided by
The direct measurement of pressure (according to its definition as a quotient of force using optimally graduated weights. As
and area) ensures high accuracies and long-term stability. These testers are used extensively soon as the measuring system reaches
in calibration laboratories in industry, standards institutes and research facilities. equilibrium, there is a balance of forces
The LDW series are ideally suited to on-site use as well as for service and maintenance between pressure and wheel weights.
purposes. The customized assembly allows set up of a complete, compact system consisting Due to the excellent quality of the system
of a universal basement and the measuring systems (piston/cylinder units). The high-quality this pressure remains stable over several
piston/cylinder units are manufactured from tungsten carbide which is known for its small minutes, so that, for instance, adjustments
temperature co-efficiency. Fast and uncomplicated changes of the measuring range are of the device under test can be carried out
possible using a flat spanner. without any problems.
In order to generate the individual test points, the piston/cylinder system is weighted For users who require a digital
with mass loads which are also calibrated and specially adapted to the required application. pressure display for connection to the
The basement is fitted with the corresponding system, depending on the measuring range of deadweight tester, Instrotech can supply
the device under test. The pressure is set via an integrated pump or, if an external pressure the Keller Leo2 that offers accuracies
supply is available, via control valves (pneumatic models). of 0,1%. An intrinsically safe version is
available.
Contact Instrotech, Phone 010 595-1831,
sales@instrotech.co.za
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Product: https://bit.ly/3zNwYKH
Hashtags: #pressurecalibration
#calibration #Instrotech
Bosch Rexroth Africa Development
appoints new manager
he Bosch Rexroth South Africa Development in extending the
Africa Group of Companies Group’s reach into emerging African
Thas appointed Petrus Viljoen markets. “We wish Petrus and his team
as Manager of Bosch Rexroth Africa all the best”, said Chris Riley, CEO,
Development, effective January 2022. Bosch Rexroth South Africa Group of
Viljoen has been part of the Companies.
Bosch Rexroth SA Group since 2013
where he played a significant role Contact Gillian Allin, Bosch Rexroth
in the development of the Group’s South Africa Group of Companies,
distribution network outside the Phone 011 979-4630,
borders of South Africa. In his new Gillian.Allin@boschrexroth.co.za,
role, Viljoen will lead Bosch Rexroth Petrus Viljoen www.boschrexroth.africa
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