Fluke P3125-PSI

Oil Deadweight Tester | 10 - 16,000 psi

The Fluke Calibration P3125 Hydraulic Deadweight Tester is a dual-piston primary pressure standard designed for calibrating pressure gauges, transmitters, transducers, and pressure switches. It provides an operating pressure range from 10 to 16,000 psi with an accuracy of ±0.015% of reading, optionally improved to ±0.008%. The P3125 features a built-in hand pump, precision screw press, and high-stability piston/cylinder assemblies for accurate and repeatable pressure generation. Additional features include tool-free test connections, an acrylic fluid reservoir, leveling feet, and a spirit level for simplified operation. Its wide calibration range and portable design make it well suited for calibration laboratories and industrial pressure calibration applications.

Product Info Related Products

Pressure Range	10 - 16,000 psi; 1 - 1,100 bar; 1 - 1,100 kgf/cm²; 0.1 - 110 MPa
Accuracy	±0.015% of reading; ±0.008% optional
Configuration	Dual piston/cylinder unit
Operating Fluid	Mineral oil, Shell Spindle Oil 22 or equivalent; viscosity 40 cSt at 20°C (68°F)
Standard Weight Material	Series 3 non-magnetic austenitic stainless steel
Standard Weight Density	7.8 g/cm³
Optional Fractional Weight Material	Solution heat-treated aluminum
Optional Fractional Weight Density	2.7 g/cm³
Piston Material	Tungsten carbide with nickel binder
Piston Density	15.0 g/cm³
Cylinder Material	Hardened martensitic steel
Thermal Coefficient of Expansion	16.5 ppm/°C
Test Port Adapters	M14 × 1.5, M20 × 1.5, and 1/8 in., 1/4 in., 3/8 in., and 1/2 in. NPT and BSP female adapters
Reservoir Volume	150 cm³ (9.2 in³)
Screw Press Displacement	5.5 cm³ (0.34 in³)
Pump Displacement	4.7 cm³ (0.29 in³) per stroke
O-Ring Seal Material	Viton®
Dimensions (W × D × H)	440 × 300 × 215 mm (17.5 × 12 × 8.5 in.)
Weight	16 kg (36 lb)
Typical Mass Set Weight	36 kg (80 lb)

Dual-piston design provides accurate calibration across a wide pressure range from 10 to 16,000 psi.
Delivers ±0.015% of reading accuracy with an optional ±0.008% high-accuracy upgrade.
Built-in lever-style hand pump simplifies system priming and large-volume pressure generation.
Precision screw press enables smooth, fine pressure control during calibration procedures.
Tool-free test station design with O-ring seals eliminates the need for PTFE tape or wrenches.
High-stability tungsten carbide piston/cylinder assemblies ensure repeatable, long-term performance.
Acrylic fluid reservoir allows easy monitoring of fluid level and condition.
Integrated spirit level and adjustable feet support proper setup and measurement accuracy.
Includes multiple NPT and BSP adapters for compatibility with a wide range of pressure instruments.
Portable design with a protective weight case and transport handles for laboratory and field applications.