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P3200 Hydraulic Deadweight Tester

P3200 Hydraulic Deadweight Tester
P3200 Hydraulic Deadweight Tester
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  • Highlights
  • Description
  • Specifications
  • Models and Accessories
  • Knowledge and Information
  • Pressure ranges to 10,000 psi (700 bar)
  • 0.015% of reading accuracy standard (0.008% optional)
  • Single or dual piston formats
  • Built-in hand pumps standard
  • Mounted spirit level with adjustable feet
  • Units can be trimmed to local gravity FOC

The P3200 Models are available in single or dual piston formats for increased operating ranges. Units can be supplied in psi, bar, kgf/cm², and MPa. These robust instruments are highly accurate, quick and easy to use. Units feature a built-in priming pump for large volume applications, piston flotation indicators and a high quality screw press for fine pressure control.

Optional PressCal software is available for pressure calculations and certificate generation.

The P3200 Series is the culmination of over 50 years of experience in the production and design of high performance pressure standards. With features designed to improve accuracy and performance, increase reliability and simplify operation these deadweight testers can be used to calibrate virtually any pressure sensing device, including transducers, transmitters, gauges or pressure switches. 
Each instrument is supplied with a detachable lid which makes it neat, compact and easily portable. The weight masses are stored in a high-quality case with a self locking mechanism to protect them during transit. 
All units are provided with a traceable certificate of accuracy, weight mass details, 1/8 inch, 1/4 inch, 3/8 inch and 1/2 inch NPT or BSP female adaptors, operating fluid (where applicable) and spare seals. 
The piston/cylinder assemblies are manufactured to the very highest standards with certified accuracies traceable to international standards laboratories such as the National Institute of Standards and Technology (NIST). 

Operating principle 
Deadweight testers are the high performance pressure standard for pressure measurement. Utilizing the well proven piston-gauge system consisting of a vertically mounted, precision lapped piston and cylinder assembly, accurately calibrated weight masses (Force) are loaded on the piston (Area), which rises freely within its cylinder. These weights balance the upward force created by the pressure within the system. The pressure is measured when placed on a correctly spinning and floating piston. The total pressure measured is the summation of the weights plus the piston weight carrier assembly.

Instrument base 
There are three basic variations in the hydraulic offering; single low pressure, single high pressure and dual piston models. Pressure is generated and controlled by means of a high quality screw press located on the front of the tester. A built-in hand pump is included as standard for all hydraulic models to prime the system and accommodate large volume requirements. 
Piston/cylinder assemblies 
The piston/cylinder assembly is the heart of each deadweight tester. They are manufactured from materials that provide stability, durability, and low thermal coefficients and distortion. Our experience and knowledge of piston/cylinder production and calibration ensure the precision and performance required for today’s demanding calibration requirements. 
Weight masses 
Standard weight masses are series 3 nonmagnetic austenitic stainless steel. Each mass is marked with the serial number of the instrument and the nominal pressure value relative to the high or low-pressure piston, when applicable. Optional fractional weights are stainless steel and/or solution heat treated aluminum. 
Gravity correction 
Gravity varies significantly with geographical location and this variation has a direct effect on the force of the weights and the accuracy of the deadweight tester. Each instrument can be calibrated to local gravity at no extra cost. If unspecified, instruments will be calibrated to Standard Gravity at 980.665 cm/s2.   

Pressure Ranges

Distilled water operated Ranges to 10,000 psi (700 bar)

Accuracy

Accuracy ±0.015% of reading (±0.008% optional)

*Accuracy based on % of reading from 10% to 100% of the piston range when used in accordance with the corrections found on the calibration certificate. Below 10% ± (accuracy class) x 10% of the piston range.

Materials of Construction

Standard weight material Series 3 non-magnetic austenitic stainless steel
Weight density 7.8 g/cm³
Optional fractional weights Solution heat treated aluminum
Weight density 2.7 g/cm³
Piston material Tungsten carbide with nickel binder
Density- 15.0 g/cm³
Cylinder material Hardened martensitic steel
Tungsten carbide (water above 500 psi, 35 bar)
Thermal coefficients of expansion Oil piston/cylinder 16.5 ppm/°C
Water (above 500 psi, 35 bar) 11 ppm/°C

General

Test port adaptors 1/8, 1/4, 3/8 and 1/2
NPT or BSP
Instrument weight 36 lbs (16 kg)
Instrument size (W x D x H) 17.5 in x 12 in x 8.5 in (440 mm x 300 mm x 215 mm)
Mass set weight (typical) 80 lbs (36 kg)
Reservoir volume 150 cc
Screw press displacement 5.5 cc
Pump displacement 4.7 cc per stroke
O-ring seal materials Buna N as standard, Viton and EPDM available

Weight Increments

Minimum Standard Weight Increments Up to 500 psi (35 bar): 1 psi (0.1 bar)
500 to 5000 psi (35 to 350 bar): 10 psi (1 bar)
5000 to 20,000 psi (350 to 1400 bar): 20 psi (2 bar)
Model P3112: 1 psi (0.1 bar)
Optional Fractional Weights Up to 500 psi (35 bar): 0.1 psi (0.01 bar)
500 to 5000 psi (35 to 350 bar): 1 psi (0.1 bar)
5000 to 20,000 psi (350 to 1400 bar): 2 psi (0.2 bar)

Operating Fluids

Operating Fluids Distilled or deionized water

Options

PressCal Software Windows-based software program that allows users to easily apply all necessary corrections to enhance the deadweight tester performance. Calibration details are then stored and/or used to automatically create a calibration certificate. PressCal is provided as standard with all 0.008% instruments
Fluids Instruments can be supplied for use with Skydrol or brake fluids. Due to the aggressive nature of these fluids the standard nitrile seals and the acrylic reservoir tube will be replaced by either Viton or EPDM seals (as applicable) and an aluminum reservoir tube. For these or any other specialty fluid applications, please consult the factory.
Model Name Description
P3211-BAR

Hydraulic Deadweight Tester
Water Operated – Single PCU
Pressure Range 1 to 35 bar

P3211-KGCM2

Hydraulic Deadweight Tester
Water Operated – Single PCU
Pressure Range 1 to 35 kgf/cm²

P3211-PSI

Hydraulic Deadweight Tester
Water Operated – Single PCU
Pressure Range 10 to 500 psi

P3211-KPA

Hydraulic Deadweight Tester
Water Operated – Single PCU
Pressure Range 100 to 3,500 kPa

P3211-MPA

Hydraulic Deadweight Tester
Water Operated – Single PCU
Pressure Range 0.1 to 3.5 MPa

P3213-BAR

Hydraulic Deadweight Tester
Water Operated – Single PCU
Pressure Range 10 to 350 bar

P3213-KGCM2

Hydraulic Deadweight Tester
Water Operated – Single PCU
Pressure Range 10 to 350 kgf/cm²

P3213-PSI

Hydraulic Deadweight Tester
Water Operated – Single PCU
Pressure Range 100 to 5,000 psi

P3213-MPA

Hydraulic Deadweight Tester
Water Operated – Single PCU
Pressure Range 1 to 35 MPa

P3214-BAR

Hydraulic Deadweight Tester
Water Operated – Single PCU
Pressure Range 20 to 700 bar

P3214-KGCM2

Hydraulic Deadweight Tester
Water Operated – Single PCU
Pressure Range 20 to 700 kgf/cm²

P3214-PSI

Hydraulic Deadweight Tester
Water Operated – Single PCU
Pressure Range 200 to 10,000 psi

P3214-MPA

Hydraulic Deadweight Tester
Water Operated – Single PCU
Pressure Range 2 to 70 MPa

P3223-BAR

Hydraulic Deadweight Tester
Water Operated – Dual PCU
Pressure Range 1 to 350 bar

P3223-KGCM2

Hydraulic Deadweight Tester
Water Operated – Dual PCU
Pressure Range 1 to 350 kgf/cm²

P3223-PSI

Hydraulic Deadweight Tester
Water Operated – Dual PCU
Pressure Range 10 to 5,000 psi

P3223-MPA

Hydraulic Deadweight Tester
Water Operated – Dual PCU
Pressure Range 0.1 to 35 MPa

P3224-BAR

Hydraulic Deadweight Tester
Water Operated – Dual PCU
Pressure Range 1 to 700 bar

P3224-KGCM2

Hydraulic Deadweight Tester
Water Operated – Dual PCU
Pressure Range 1 to 700 kgf/cm²

P3224-PSI

Hydraulic Deadweight Tester
Water Operated – Dual PCU
Pressure Range 10 to 10,000 psi

P3224-MPA

Hydraulic Deadweight Tester
Water Operated – Dual PCU
Pressure Range 0.1 to 70 MPa

Accessories common to all models:

Accessory Description
P5521 and P5522 Liquid-to-Liquid Separators

These liquid-to-liquid separators connect directly to the test port of a hydraulic deadweight tester or comparison test pump. A flexible diaphragm separates the fluids, protecting the calibrator from contamination, and allows calibration of the device in its specific working fluid.

P5523 Liquid-to-Gas Media Separator

Pressure range 0 to 3,000 psi (210 bar)

For high pressure pneumatic calibrations this unit interfaces with hydraulic deadweight testers providing a rateless liquid-to-gas separation. Driven by a pneumatic pressure source (nitrogen bottle) and controlled by needle valves, high pressure gas is balanced against the liquid in a hydraulic deadweight tester through a series of fluid traps.

* Note---since fluid mist may be transferred during operation we do not recommend this device for oxygen safe instruments using an oil operated deadweight tester.

 

P5543 Angle Adapter

To calibrate gauges with the pressure connection on the rear (for example, panel mount gauges) in their correct operating position, an angle adaptor should be used. The angle adapter uses the standard gauge adapters and positions the gauges at 90º. The maximum working pressure of this unit is 10,000 psi (700 bar).

P5544 Two Gauge Stand

This adapter mounts directly to the test port of the calibrator and allows for the calibration of two instruments at the same time, or the connection of a reference test instrument. Maximum working pressure is 10,000 psi (700 bar).

P5551 Pointer Remover / Punch

This tool is designed to quickly remove and consistently refit the pointer of a pressure gauge.

Product Manuals
application/pdf icon P3100 & P3200 Users Manual (Eng) (1.58 MB)
application/pdf icon P3100 & P3200 Users Manual Supplement (277.22 KB)
application/pdf icon P3100 & P3200 取扱説明書 (日本語) (1.64 MB)
application/pdf icon P3100 & P3200 Users Manual (Ger) (1.5 MB)
application/pdf icon P3100 & P3200 Users Manual (Chi) (1.64 MB)
application/pdf icon P3100 & P3200 Users Manual (Por) (1.49 MB)
application/pdf icon P3100 & P3200 Users Manual (Rus) (1.67 MB)
application/pdf icon P3100 & P3200 Users Manual (Spa) (1.49 MB)
Brochures
application/pdf icon Hydraulic Pressure Calibrators Workload Matrix (467.75 KB)
application/pdf icon Pressure Calibration Applications and Solutions (7.34 MB)
application/pdf icon Druckkalibrierung Anwendungsgebiete und Lösungen (12.71 MB)
application/pdf icon Calibración de presión Aplicaciones y soluciones (12.79 MB)
application/pdf icon Étalonnage de pression Applications et solutions (12.49 MB)
application/pdf icon Drukkalibratie Toepassingen en oplossingen (12.54 MB)
application/pdf icon 圧力校正 用途とソリューション (12.67 MB)
application/pdf icon 압력 교정 응용 분야 및 해결 방법 (12.66 MB)
application/pdf icon Calibração de Pressão Causas e soluções (12.51 MB)
application/pdf icon Калибровка давления Сферы применения и решения (37.45 MB)
application/pdf icon 压力校准 应用和解决方案 (12.87 MB)
Application Notes
application/pdf icon Accounting for Gravity When Using a Deadweight Tester or Piston Gauge (2.87 MB)
application/pdf icon Guide for the uncertainty analysis in pressure when using P3000 Series Deadweight Testers (3.1 MB)
application/pdf icon Performing Precise Pressure Calibrations May Cost Less Than You Think (2.49 MB)
application/pdf icon Melakukan kalibrasi tekanan secara presisi yang lebih murah dari yang Anda kira (Indonesian Bahasa) (221.58 KB)
application/pdf icon Principles of Metrology (400.44 KB)
Data Sheets
application/pdf icon P3100 and P3200 Hydraulic Deadweight Testers Data Sheet (2.06 MB)
application/pdf icon P3100/P3200 Hydraulikdruck-Prüfstände (German) (409.71 KB)
application/pdf icon P3100/P3200 Balances hydrauliques à masses (French) (411.42 KB)
application/pdf icon P3100/P3200 Comprobadores hidráulicos de peso muerto (Spanish) (410.85 KB)
application/pdf icon Гидравлические грузопоршневые манометры Модели P3100 и P3200 (Russian) (538.06 KB)
application/pdf icon P3100/P3200 Testadores hidráulicos de peso morto (Portuguese) (405.62 KB)
application/pdf icon P3100/P3200液体圧重錘形圧力計データシート (1.36 MB)
application/pdf icon Weight increments for deadweight testers (860.71 KB)
Papers / Articles
application/pdf icon An Examination of the Uncertainty of Industrial Deadweight Testers Used for Pressure Calibrations in Different Environments (NCS (2.53 MB)
application/pdf icon 6003026b-en-w (1).pdf (2.44 MB)
Performing Precise Pressure Calibrations May Cost Less Than You Think
application/pdf icon The Impact of the New SI on Industry (948.69 KB)
Video
Video Tutorial: How to measure pressure with a deadweight tester?
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