DH-Budenberg

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DH-Budenberg provides special deadweight tester oil with their equipment but other hydraulic fluids such as distilled water can be used as long as certain guidelines are followed.
DH-Budenberg supplies a software package with all deadweight testers to compensate for environmental effects.
Weight sets can be adjusted for local gravity as an option.

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The DH-Budenberg 580L hydraulic deadweight tester consists of a 1/16 in²low-pressure piston-cylinder assembly and a standardized 580 series base.

Standard range: 10 – 1600 psig.
Metric range: 1 – 120 bar.
Total Uncertainty: 150 ppm
Optional Class A UKAS  Uncertainty: 60 ppm

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The DH-Budenberg 580M hydraulic deadweight tester consists of a 1/40 in²medium-pressure piston-cylinder assembly and a standardized 580 series base.

Standard range: 30 – 4000 psig.
Metric option: 2 – 300 bar.
Total Uncertainty: 150 ppm
Optional Class A UKAS  Uncertainty: 60 ppm

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The DH-Budenberg 580 DX hydraulic deadweight tester has a patented dual-range piston system which allows low-pressure and high-pressure calibrations to be performed without changing pistons or weight sets.

This system incorporates a 1/80 in² piston inside a 1/8 in² piston contained within the same cylinder. This assembly is made from high quality, fully stabilized tungsten-carbide.

Standard ranges: 10 – 800 psig and 100 – 10,000 psig.
Metric ranges: 1 – 60 bar and 10 – 700 bar.
Total Uncertainty: 150 ppm
Optional Class A UKAS Uncertainty: 60 ppm

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The DH-Budenberg 580 HX hydraulic deadweight tester uses the same dual-range piston system as the 580 DX.

This system incorporates a 1/160 in² and 1/8 in² combination piston cylinder assembly.

Standard ranges: 10 – 800 psig and 200 – 16,000 psig.
Metric ranges: 1 – 60 bar and 20 – 1200 bar.
Total Uncertainty: 150 ppm
Optional Class A UKAS Uncertainty: 70 ppm

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

The piston areas for this model are 1/160 in² and 1/8 in².

Standard ranges: 10 – 600 psig and 200 – 40,000 psig.
Metric ranges: 1 – 50 bar and 20 – 2600 bar.
Total Uncertainty: 200 ppm
Optional Class A UKAS Uncertainty: 80 ppm

DH-Budenberg supplies a software package with all deadweight testers to compensate for environmental effects.

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The DH-Budenberg 551 pneumatic deadweight tester consists of an aluminum 1/2 in² piston cylinder assembly and a 550 series base.
This tester is available with a somewhat unique vacuum attachment which inverts the PCA for vacuum calibration.

Standard range: 5 – 400 in H₂O (approx. 0.18-14.4 psig)
Metric range: 15 – 1000 mbar
Optional Range: -5 – -400 in H₂O
Total Uncertainty: 150 ppm
Optional Class A UKAS  Uncertainty: 60 ppm

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The DH-Budenberg 552 pneumatic deadweight tester consists of a chrome steel 1/2 in² piston cylinder assembly and standardized 550 series base.

Standard range: 1 – 100 psig
Metric range: 0.1 – 7 bar
Total Uncertainty: 150 ppm
Optional Class A UKAS  Uncertainty: 60 ppm

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The DH-Budenberg 554 pneumatic deadweight tester consists of a tungsten carbide 1/8 in² piston cylinder assembly and standardized 550 series base.

Standard range: 3 – 400 psig
Metric range: 0.2 – 25 bar
Total Uncertainty: 150 ppm
Optional Class A UKAS  Uncertainty: 60 ppm

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The DH-Budenberg 556 pneumatic deadweight tester consists of a re-entrant type chrome steel 1/16 in²piston cylinder assembly and standardized 550 series base.

Standard range: 15 – 1000 psig
Metric range: 1 – 70 bar
Total Uncertainty: 200 ppm
Optional Class A UKAS  Uncertainty: 65 ppm

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The DH-Budenberg 558 pneumatic deadweight tester consists of a tool steel 1/16 in²piston cylinder assembly and standardized 550 series base.

Standard range: 10 – 1600 psig
Metric range: 1 – 120 bar
Total Uncertainty: 150 ppm
Optional Class A UKAS  Uncertainty: 60 ppm

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The DH-Budenberg DPG10 is the world’s most accurate digital pressure indicator, combining a high-end piston-cylinder assembly with a high accuracy load cell.
With a Total Uncertainty to 20 ppm of reading the DPG10 actually out-performs most traditional deadweight testers with all the functionality of a digital transfer standard.

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 on clean dry gas.
Adding a Mensor controller or a 550C gauge comparator  results in an extremely fast and stable calibration system.

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DH-Budenberg manufactures both automated and manual primary standards for national laboratories, precision manufacturers, and high-end metrology labs.

Pressure ranges to 116,000 psi (8000 bar) are common with Total Uncertainties less than 7 ppm of reading. Absolute, Gauge, Differential, and Custom models are available.

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DH-Budenberg manufactures a number of accessories for their deadweight testers such as high pressure fittings and test stands with quick disconnects.

Hydraulic and Pneumatic Gauge Comparators, Zero Volume Valves, Priming Pumps, Screw Pumps, and Media Isolators are also available.

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Total Uncertainty takes into account all factors which could effect the pressure reading. Total Uncertainty is usually expressed in parts per million of reading.
200 ppm is 0.020%.
Total Uncertainty is the most comprehensive statement of a device’s performance.

DH-Budenberg guarantees the total uncertainty of their industrial units for readings above 10% of the unit’s total range after correction had been made with their software compensation program.

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 Contact Us for details.