Home » Deadweight testers » LR-Cal LDW-HK Hydraulic deadweight tester/pressure balance

LR-Cal LDW-HK Hydraulic deadweight tester/pressure balance

Hydraulic, compact design
Pressure ranges from 1…120 bar to 10…1,200 bar and from 10…1,600 psi to 100…16,000 psi
Accuracy ±0.025% or ±0.05% of measured value

			int(26333)
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Made in Germany. brand Leitenberger, model LDW-HK

International delivery to United Arab Emirates, Kuwait, Qatar, Saudi Arabia, Saudi Arabia, Bahrain, Oman and other Middle Eastern countries.
Our warehouses are located in UAE. Delivery to other countries (Europe, North and South America, Asia, Africa) is discussed individually.

Retail price from $5 700

Available

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Supply to United Arab Emirates, Kuwait, Qatar, Saudi Arabia, Bahrain, Oman and other countries

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Description of LR-Cal LDW-HK

Proven primary standard
Pressure balances / deadweight tester are the most accurate devices available on the market for the calibration of electronic or mechanical pressure measuring instruments. The direct measurement of the pressure (p = F/A), as well as the use of high quality materials allow a very small measurement uncertainty in combination with an excellent long-term stability of 5 years (recommendation according to the German Calibration Service (DAkkS). Deadweight tester have been used for years in factory and calibration laboratories of industry, national institutes and research institutes.

Autarkic operation
Due to the integrated pressure generation as well as the purely mechanical measuring principle, the LR-Cal LDW-HK pressure balance is also ideally suited for on-site use, maintenance and service.

Basic principle
Pressure is defined as the quotient of force and area. Accordingly, the heart of the LR-Cal LDW-HK pressure balance is a very precisely manufactured piston/cylinder system that is loaded with mass supports to generate the individual test points.

The mass support is proportional to the target pressure and is achieved by optimally graduated disc weights. These disc weights are manufactured as standard to the standard acceleration of gravity of 9.80665 m/s², but can also be optionally adapted to their specific location of use and also DAkkS-calibrated.

Simple operation
The integrated dual-range spindle pump enables rapid filling of the test system and trouble-free pressure buildup up to 1200 bar (16000 psi). At the same time, the precisely adjustable spindle pump also serves for fine pressure adjustment. An operating diagram for pressure generation to facilitate quick and easy operation is located on the top of the device.

As soon as the measuring system is then in a floating state, there is a balance of forces between the pressure and the mass supports. Due to the excellent workmanship of the system, this pressure remains stable for several minutes, so that the pressure values for comparative measurement or even more extensive adjustment work on the test specimen can be carried out without any problems.

Compact device design
The LR-Cal LDW-HK deadweight tester is also characterized by its compact dimensions, which do not change even during operation due to the rotary spindle running only inside the pump body.
With its compact dimensions, the extremely robust ABS plastic housing and the associated low weight, the LR-Cal LDW-HK pressure balance is also particularly suitable for on-site applications.

Special features:

Total measurement uncertainty up to ±0.025% of measured value
With traceable factory calibration certificate as standard (option: DAkkS calibration certificate)
Very high long-term stability, recommended recalibration only every 5 years
Mass disks made of stainless steel, optional adaptation to local gravitational acceleration of the place of use possible
Compact dimensions

Applications:

Primary standard for the measurand pressure, up to max. 1,200 bar (16,000 psi), hydraulic
Reference instrument for factory and calibration laboratories for testing, adjusting and calibrating pressure measuring instruments of all types
Self-sufficient complete system, also suitable for on-site use.

Technical specifications of LR-Cal LDW-HK

Pressure range “bar” 1)	[bar]	1…120	2.5…300	5…700	10…1,200
Required masses	[kg]	41	50	58	50
Smallest step 2) standard mass set	[bar]	1	2,5	5	10
Nominal cross-sectional area of the piston	[in²]	1/16	1/40	1/80	1/160
Pressure range “psi” 1)	[psi]	10…1,600	25…4,000	50…10,000	100…16,000
Erforderliche Massen	[kg]	38	47	58	47
Smallest step 2) standard mass set	[psi]	10	25	50	100
Nominal cross-sectional area of the piston	[in²]	1/16	1/40	1/80	1/160
Accuracy
Standard 3)	[% of measured value]	0,05
Option 3)	[% of measured value]	0,025
Pressure transmission medium	Hydraulic fluid based on VG22 mineral oil (0.5 l included in scope of delivery)
Material
Piston	Tungsten carbide
Cylinder	Tungsten carbide
Set of masses	Stainless steel, non-magnetic
Weight
Piston-cylinder system	[kg]	2.4
“bar”-mass set, incl. bell jar	[kg]	41.5	50.5	58.5	50.5
“psi”-mass set, incl. bell jar	[kg]	47.5	47.5	58.5	47.5
Optional carrying case for set of masses (2 pcs. required)	[kg]	5.8
Dimensions
Optional carrying case for set of masses (2 pcs. required)	[mm]	W 400 x D 310 x H 310

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1) Theoretical starting value; corresponds to the pressure value generated by the piston or the piston and its make-up weights (bei their own weight). To optimise the operating characteristics more weights should be loaded.
2) The smallest pressure change value that can be achieved based on the standard weight set. To reduce this, a set of trim masses is also available, see Accessories.
3) The accuracy from 10% of the measuring range is based on the measured value. In the lower range, a fixed error based on 10% of the range applies.
4) Measuring uncertainty assuming reference conditions (ambient temperature 20°C, air pressure 1,013 mbar, relative humidity 40%). Corrections mus be made if required.

LR-Cal LDW-HK base unit

Description:	Unit:	Data:
Connection for piston-cylinder system:		3/4″ BSP male
Test item connection:		1/2″ BSP female thread, free-running, incl. adapter set to 1/4″ BSP and 3/8″ BSP female threads
Wetted parts:		Austenitic stainless steel, high tensile brass, nitrile rubber
Pressure transmission medium:		Hydraulic fluid based on VG22 mineral oil (0.5 l included in scope of delivery)
Reservoir volume:	[cm³]	170
Weight instrument base:	[kg]	13.5
Weight optional storage case for the base:	[kg]	8.5
Permissible operating temperature:	[°C]	18…28
Dimensions of the base:	[mm]	W 401 x D 397 x H 155

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Accessories for

Photo	Model	Description
	LDW-HK-KOFFER-SET	Set of cases 1 case for base unit 1 case for mass set
	LDW-HK-KOFFER-BM	1 case for base unit
	LDW-HK-KOFFER-MS	1 case for mass set
	LDW-FMS-F1	Fine incremental mass set class F1 1 mg to 50 g
	LDW-FMS-M1	Fine incremental mass set class M1 1 mg to 50 g
	LDW-ADAPTER-BSP	BSP adapter set for test item port
	LDW-ADAPTER-NPT	NPT adapter set for test item port
	LDW-ADAPTER-M	Metric adapter set for test item port
	CPB5000-WA90	90° elbow connector e.g. for connecting pressure gauges with rear pressure connection to the test connection of the device
	LDW-TV-0700	Separator, max. 700 bar
	LDW-TV-1200	Separator, max. 1.200 bar
	CPB5000-FLUID	Operating fluid - special hydraulic oil on mineral oil basis Suitable up to max. 4,000 bar Bottle with 1 l content

Prices for

Model	Description	Availability	Price	Qty
LDW-HK-B00120-G050	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.050% of measured value; Range: 1…120 bar	Delivery time from 12 weeks	from 5 700$	- +
LDW-HK-B00300-G050	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.050% of measured value; Range: 2,5…300 bar	Delivery time from 12 weeks	from 5 900$	- +
LDW-HK-B00700-G050	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.050% of measured value; Range: 5…700 bar	Delivery time from 12 weeks	from 6 200$	- +
LDW-HK-B01200-G050	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.050% of measured value; Range: 10…1200 bar	Delivery time from 12 weeks	from 6 800$	- +
LDW-HK-P01600-G050	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.050% of measured value; Range: 10…1600 psi	Delivery time from 12 weeks	from 5 700$	- +
LDW-HK-P04000-G050	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.050% of measured value; Range: 25…4000 psi	Delivery time from 12 weeks	from 5 900$	- +
LDW-HK-P10000-G050	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.050% of measured value; Range: 50…10000 psi	Delivery time from 12 weeks	from 6 200$	- +
LDW-HK-P16000-G050	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.050% of measured value; Range: 100…16000 psi	Delivery time from 12 weeks	from 6 800$	- +
LDW-HK-B00120-G025	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.025% of measured value; Range: 1…120 bar	Delivery time from 12 weeks	from 6 000$	- +
LDW-HK-B00300-G025	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.025% of measured value; Range: 2,5…300 bar	Delivery time from 12 weeks	from 6 300$	- +
LDW-HK-B00700-G025	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.025% of measured value; Range: 5…700 bar	Delivery time from 12 weeks	from 6 500$	- +
LDW-HK-B01200-G025	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.025% of measured value; Range: 10…1200 bar	Delivery time from 12 weeks	from 7 200$	- +
LDW-HK-P01600-G025	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.025% of measured value; Range: 10…1600 psi	Delivery time from 12 weeks	from 6 000$	- +
LDW-HK-P04000-G025	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.025% of measured value; Range: 25…4000 psi	Delivery time from 12 weeks	from 6 300$	- +
LDW-HK-P10000-G025	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.025% of measured value; Range: 50…10000 psi	Delivery time from 12 weeks	from 6 500$	- +
LDW-HK-P16000-G025	LR-Cal LDW-HK - hydraulic, compact design. Uncertainty ±0.025% of measured value; Range: 100…16000 psi	Delivery time from 12 weeks	from 7 200$	- +
LDW-HK-KOFFER-BM	Zylinder-System 1 Case for LDW-HK unit incl. piston-/cylinder system	Delivery time from 12 weeks	from 460$	- +
LDW-HK-KOFFER-MS	2 wooden cases for LDW-HK mass set	Delivery time from 12 weeks	from 580$	- +
LDW-HK-KOFFER-SET	Set of 3 cases: 1 case for LDW-HK unit incl. piston-/cylinder-system and 2 cases for LDW-HK mass set	Delivery time from 12 weeks	from 1 046$	- +
LDW-FMS-F1	Set of trim masses (1 mg up to 50 g) class F1	Delivery time from 12 weeks	from 1 480$	- +
LDW-FMS-M1	Set of trim masses (1 mg up to 50 g) class M1	Delivery time from 12 weeks	from 462$	- +
LDW-ADAPTER-BSP	Set of BSP adapters for test item port (1/8" BSP, 1/4" BSP, 3/8" BSP, 1/2" BSP)	Delivery time from 12 weeks	from 392$	- +
LDW-ADAPTER-NPT	Set of NPT adapters for test item port (1/8" NPT, 1/4" NPT, 3/8" NPT, 1/2" NPT)	Delivery time from 12 weeks	from 392$	- +
LDW-ADAPTER-M	Set of metric adapters for test item port (M12 x 1.5 and M20 x 1.5)	Delivery time from 12 weeks	from 392$	- +
LDW-PAS-G12	Test item connection 3/4" BSP female to 1/2" BSP female, rotating	Delivery time from 12 weeks	from 267$	- +
CPB5000-WA90	90° angle connection, for test items with back mounting connection	Delivery time from 12 weeks	from 410$	- +
LDW-TV-M-0700	Separator (to separate 2 liquid media by diaphragm) max. 700 bar	Delivery time from 12 weeks	from 1 900$	- +
LDW-TV-M-1200	Separator (to separate 2 liquid media by diaphragm) max. 1200 bar	Delivery time from 12 weeks	from 2 200$	- +
CPB5000-FLUID	operating fluid (oil) - 1 л (Pmax 4000 bar)	Delivery time from 12 weeks	from 68$	- +
LDW-HK-R-SET	Set of seals for piston/cylinder- and test item connections	Delivery time from 12 weeks	from 130$	- +
LDW-HK-W-SET	Spare: tool set consists of open-ended spanner, BSP adapter, replacement seals, pointer removal device and pointer press-on tool	Delivery time from 12 weeks	from 860$	- +

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User Guide and Instruction manual for Leitenberger LDW-HK

You can request the necessary certificates, documentation, instructions and user guide for Leitenberger LDW-HK using the special form.

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You can buy Leitenberger LDW-HK in UAE at a price starting from 5700 $ in «Texair FZCO» by leaving a request on the website, by phone +441225535040 or by email rop@texairmeasure.ae. Leitenberger LDW-HK price are subject to change depending on exchange rates. We deliver instruments by transport companies in United Arab Emirates, Kuwait, Qatar, Saudi Arabia, Saudi Arabia, Bahrain and other Middle Eastern countries.