Hydraulic Dead Weight Testers | Pneumatic Dead Weight Testers | Metrological Equipment | Special Applications


DH-Budenberg (England) is a world-leading manufacturer Industrial Dead Weight Testers.
Desgranges et Hout (France) manufactures high-end metrological primary pressure standards.
DH piston and cylinder assemblies are used as primary standards in 41 of the 56 BIPM national standards laboratories including NRC and NIST.
www.dh-budenberginc.com

Industrial Hydraulic Dead Weight Testers

CPU5000

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CPU 6000 Calibration Unit

Provides critical on-line data to provide the best uncertainty value of the pressure balance.

Computes air density from ambient humidity/temperature/pressure

Measures piston temperature and floating position of the masses

Calculates Mass to Pressure and Pressure to Mass conversions

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CPB3800

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The DH-Budenberg CPB 3800 is a low cost industrial hydraulic deadweight tester.

Total Uncertainty +/- 0.005% of reading standard, +/-0.0025% of reading optional
Four single range pistons, max 16,000 PSI
5-year recalibration cycle

Traceable to National Standards

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CPB5800

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The DH-Budenberg CPB 5800 industrial hydraulic deadweight tester features a dual-range piston cylinder system.

Total Uncertainty +/-0.015% of reading or optional +/-0.006% of reading Class A UKAS
Four dual-range pistons, max 20,000 PSI
5-year recalibration cycle
Traceable to National Standards

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580EHX


DH-Budenberg 580EHX
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The DH-Budenberg 580 EHX hydraulic deadweight tester consists of a high-pressure base, overhang weight set, and a tungsten carbide dual-range piston cylinder system made for high pressure calibration.

Total Uncertainty: 200 ppm or optional 80 ppm Class A UKAS
Standard ranges: 10 – 600 psig and 200 – 40,000 psig
5-year recalibration cycle traceable to National Standards

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CPB5000-HP

Mensor CPB 5000-HPClick Here for datasheet

The DH-Budenberg CPB 5000-HP is a high pressure industrial hydraulic deadweight tester.

Total Uncertainty +/-0.025% of reading or optional +/-0.020% of reading Class A UKAS
Single Range 70,000 PSI
Dual Range 600/40,000 PSI
5-year recalibration cycle
Traceable to NIST

 

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Industrial Pnumatic Dead Weight Testers

550 Series

DH-Budenberg 550 series
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Differential Pressure Dead Weight TesterProvides a range of differential pressures at various static pressures.

Two pneumatic models: 1,500 and 5,000 psi static, differential + static pressure not to exceed max static pressure

Two hydraulic models: 14,500 and 23,000 psi static, differential + static pressure not to exceed max static pressure

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CPB5000

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The DH-Budenberg CPB 5000 is a pneumatic deadweight tester that can use the patented ConTect Quick-change Piston-Cylinder System.

Total Uncertainty +/-0.015% of reading or optional +/-0.006% of reading Class A UKAS
Six easily changed piston/cyclinders

Unique vacuum range -14 to 30 PSIG

Max range 1500 PSIG
5-year recalibration cycle

Traceable to NIST

 

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Metrological Equipment

CPB6000

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The Desgranges et Hout CPB 6000 (Formerly DH model 5000) is used world wide as a primary pressure standard.
Special spring-balanced low-volume valve assemblies with simple on/off indication provide extremely high levels of reliability and accuracy compared to standard soft-seat needle valves.
Piston float indicator allows optimal accuracy.

Offering Uncertainties as low as +/-0.002% of reading
Available Pneumatic ranges from 5 kPa to 100 MPa (14,500 psi)
Hydraulic ranges from 200 kPa to 500 MPa (72,500 psi)

Special models are available for differential testing and operation with special fluids such as water.

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CPD8000

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The DH CPD 8000 (Formerly known as the DPG10) a DWT uncertainty level digital pressure indicator, combining a high-end piston-cylinder assembly with a metrology grade load cell.
With a Total Uncertainty to +/-0.002% of reading.

One of the major advantages of the CPG 8000 is the independent vacuum reference, which allows multi-point absolute calibration without the need to break the reference vacuum, unlike a conventional bell-jar deadweight tester.

Available in multiple ranges from 0 – 7,250 psig to 0 – 725 psia.
Two-point Self-calibrations are carried out via an internal standard mass and can be started manually, remotely or pre-programmed to start automatically at a given interval.
External pressure generation is required and these units operate only with clean dry gas.
The CPG 8000 now interfaces directly with the Mensor CPC 8000 controller via RS-232. Alternatively, a 550C gauge comparator can be used to provide an extremely fast and stable calibration system.

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Metrology Equipment
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Desgranges et Hout manufactured the world absolute pressure standard which is housed within the French national laboratory, LNE. The APX50 automated primary standard boasts uncertainties approaching 2 ppm for clean dry gas applications.

Automated standards designed for industrial use are available in the range of 20 ppm total uncertainty and come equipped with automatic balances for unlimited spin and float times.

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Hydraulic Test Pump



DH-Budenberg Portable DWT
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Hydraulic Comparison Test Pump

Simple hydraulic test pressure generation on-site, in the laboratory or in the workshop

For the testing, adjustment and calibration of all types of pressure measuring instruments

Hydraulic pressure generation up to 1,200 bar

 

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Accuracy Statements

Total Uncertainty is the most comprehensive statement of a device’s performance.
Total Uncertainty takes into account all factors which could effect the pressure reading including mechanical tolerances, thermal expansion, buoyancy of masses in air and uncertainty of the reference calibration standard.
Total Uncertainty is usually expressed in parts per million of reading.
200 ppm is 0.020%.

DH-Budenberg guarantees the total uncertainty of their industrial units for readings above 10% of the range of the active piston, after correction had been made for ambient temperature, humidity, variation in local gravity, etc.

UKAS is an independant accreditation body in the UK and will certify individual pieces of DH-Budenberg equipment.
UKAS provides special calibration certificates and correction coefficients for greater traceable accuracy than DH-Budenberg can themselves provide.
An additional fee applies for this service please contact Us for details.