LR-Cal LDW-P Deadweight Tester / Pressure Balance0 pages

Deadweight Tester / Pressure Balance
PneumaƟc, Accuracy up to ±0.008% o.r.

LDW-P
Rel. 20120927

ApplicaƟons:
• Primary standard for dening the pressure scale in a
range up to 100 bar, pneumaƟc.
• Reference instrument for tesƟng, adjusƟng and
calibraƟng pressure measuring instruments in
factories and calibraƟon laboratories.
• Self-contained, complete system also suitable for
on-site measurements/calibraƟons.

Special features:
• Total uncertainty of measurement down to
±0.008% of reading.
• Factory calibraƟon cerƟcate as standard,
traceable to NaƟonal Standards, DKD-/DAkks
calibraƟon cerƟcate available as an opƟon.
• High long-term stability with a recommended
recalibraƟon cycle of 5 years.
• Masses manufactured from stainless steel and
aluminium, local gravity adjustment possible
at not addiƟonal charge.
• OpƟonal a quick-change system for piston-cylinder
unit available, enables fast and secure exchange of
the piston-cylinder system in order to change the
measuring range.

DescripƟon:
Proven primary standard
Pressure balances are the most accurate instruments
for the calibraƟon of electronic or mechanical
pressure measuring instruments. The direct
measurement of pressure (P = F/A) and the use of
high-quality materials, result in small measurement
uncertainƟes and an excellent long-term stability of
ve years (RecommendaƟon in accordance with the
German CalibraƟon Service DKD/DAkkS).
For these reasons pressure balances / deadweight
testers have already been used in the calibraƟon
laboratories of industry, naƟonal insƟtutes and
research laboratories for many years.

Basic principle
Pressure is dened as the quoƟent of force and area.
Correspondignly, the core of the LR-Cal LDW-P
deadweight tester is a very precisely-manufactured
piston-cylinder system, which is loaded with masses in
order to generate the individual test points.
The weight applied is proporƟonal to the desired
pressure and accomplished by using opƟmally
graduated weights. These weights are manufactured
to standard gravity (9.80665 m/s²) although, for xed
locaƟon usage, they can be adjusted to a customerspecied local gravity.

Self-contained operaƟon
Due to the integrated pressure generaƟon (for ranges
up to 10 bar) and the purely mechanical measuring
principle, the LR-Cal LDW-P deadweight tester is
ideally suited to on-site use as well as service and
maintenance purposes.

DRUCK & TEMPERATUR Leitenberger GmbH • Bahnhofstr. 33 • D-72138 Kirchentellinsfurt • GERMANY
Tel. +49 (0) 7121-90920-0 • Fax +49 (0) 7121-90920-99 • DT-Info@Leitenberger.de • www.LR-Cal.de • www.druck-temperatur.de

1