Fluke Calibration P3124-PSI Oil Operated Dual Range Deadweight Tester, 10,000 PSI

Product Highlights

• Pressure ranges to 20 000 psi (1 400 bar)
• Accuracy better than 0.015 % of reading (Increased accuracy option of 0.008 %)
• Mineral oil and distilled water models
• Dual piston models allow calibration over a wide range
• Psi, bar, kgf/cm2, kPa and MPa ranges available
• Dual piston models for calibration over a wide pressure range
• Built-in lever style hand pump now standard on all hydraulic models
• Mounted spirit level and adjustable feet
• High quality screw press for fine pressure control
• Test station design with O-rings eliminates the need for PTFE tape or wrenches
• Acrylic reservoir provides visibility of fluid level and quality
• Improved case with springloaded latches for hood
• Built-in drain plug to remove old fluid
• Sturdy weight box with hinged lid and side handles for easy transport

Operating principle

Deadweight testers are the high performance pressure standards 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.