LR-Cal LDW-H Deadweight Tester0 pages
Deadweight Tester / Pressure Balance
Hydraulic, Accuracy up to ±0.006% MV
LDW-H
Rel. 20120920
ApplicaƟons:
• Primary standard for dening the pressure scale in a
range up to 1,400 bar, hydraulic
• Reference instrument for factory and calibraƟon
laboratories for the tesƟng, adjustment and
calibraƟon of pressure measuring devices.
• Complete, stand-alone system, also suitable for
on-site use
Special features:
• Total measurement uncertainty to 0.006% MV
(of measured value)
• Dual-range piston-cylinder system with fully
automated changing between ranges
• Factory calibraƟon includes traceability to naƟonal
standards as standard. OpƟonal with UKAS- or
DKD-/DAkkS calibraƟon
• High long-term stability with recommended
recalibraƟon cycle every ve years
• Fast and safe replacement of the piston-cylinder
system with quick-release system as an opƟon
DescripƟon:
Proven primary standard
Deadweight tester / Pressure balances are the most
accurate instruments available on the market for the
calibraƟon of electronic or mechanical pressure
measuring instruments. The direct measurement of
the pressure (p = F/A), as well as the use of highquality materials enable a very small measurement
uncertainty, in conjuncƟon with an excellent longterm stability of ve years (recommended in
accordance with the German CalibraƟon Service
DKD/DAkkS).
The pressure balance has therefore been used for
years in factory and calibraƟon laboratories in
industry, naƟonal insƟtutes and research laboratories.
Basic principle
Pressure is dened as the quoƟent of force and area.
The core component of the LR-Cal LDW-H is therefore
a very precisely manufactured piston-cylinder system,
which is loaded with masses in order to generate the
individual test points.
The masses applied are proporƟonal to the target
pressure and this is achieved through opƟmally
graduated masses. As standard, these masses are
manufactured to the standard gravity (9.80665 m/s²),
though the can be adjusted to a specic locaƟon and
also UKAS or DKD/DAkkS calibrated.
Stand-alone operaƟon
Due to its integrated pressure generaƟon and the
pure mechanical measuring principle, the Deadweight
Tester LR-Cal LDW-H is ideal for on-site use for
maintenance and service.
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
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