Fluke P3111-XXX Oil Hydraulic Deadweight Tester

The Fluke P3111-XXX Oil Hydraulic Deadweight Tester can be used to calibrate pressure sensing equipment. For a quick introduction to this product, please see the video below.

This deadweight tester is available in five models with varying pressure ranges and measurement units. For further information regarding these models, please see the table below.

The Fluke P3111-XXX Oil Hydraulic Deadweight Tester is able to generate hydraulic pressure via a high-quality screw press. It also includes a hand-pump optimised to prime the system and accommodate large volume requirements. These features make it suitable for calibrating pressure sensing instruments such as transducers, transmitters, gauges and pressure switches.

As pressure is created the piston rises in the cylinder. Accurately calibrated weight masses are then added to the piston in order to balance this force. Each of the weight masses includes the instrument’s serial number and its nominal pressure value relative to a low- or high-pressure piston marked on its series 3, non-magnetic, austenitic, stainless steel body. In order to determine the final pressure, the pressure values marked on the weight masses added to the piston are combined. For further information, please see the video below.

The piston and cylinder assembly with floatation indicator has been constructed in accordance with the highest standards and as such features certified accuracies traceable to international standard laboratories, such as NIST (National Institute of Standards and Technology). This assembly has been designed to limit the effects of thermal coefficients and distortion, whilst maintaining stability and durability.

Furthermore, this tester is supplied with a traceable certificate of accuracy and is calibrated to standard gravity (980.665cm/s²), giving it a standard accuracy of 0.015%. However, it is possible to improve the accuracy of this instrument to 0.008% by making slight adjustments to its set-up, for instance by calibrating it to the user’s local gravity. In doing this, the localised, gravitational pull on the weight masses is accounted for, ensuring that the user is able to conduct more accurate measurements.

The design of the Fluke P3111-XXX Oil Hydraulic Deadweight Tester also adds to its precision. It includes adjustable feel and a mounted spirit level, ensuring that it can be accurately set-up in various rugged and/or uneven worksites. Furthermore, its test station design with O-rings and supplied 1/8 inch, 1/4 inch, 3/8 inch and 1/2 inch NPT or BSP female adaptors mean that PTFE tape and/or wrenches are not required when attaching most additional instruments. Adding to its ease-of-operation is its clear, acrylic reservoir, which allows the user to see the oil level and quality, and its built-in drain plug that facilitates the easy draining of the mineral oil.

The Fluke P3111-XXX's detachable lid allows the user to transport the deadweight tester easily between sites. In addition to this, weight masses can be stored in a secure weight box with a self-locking mechanism, ensuring that they may also be transported easily, as well as securely and safely.

The Fluke P3111-XXX Oil Hydraulic Deadweight Tester is a sophisticated product optimised for calibrating pressure sensing instruments, accurately, reliably and simply.

Fluke P3111-XXX Oil Hydraulic Deadweight Tester Key Features

• Ideal for calibrating pressure sensing equipment
• Available in five models with varying pressure ranges and measurement units
• Creates hydraulic pressure using mineral oil
• High-quality screw press allows the user to control pressure production and make fine pressure adjustments
• Integrated hand-pump optimised for priming the system and accommodating large volume requirements
• Ideal for calibrating pressure sensing instruments such as transmitters, transducers, gauges and pressure switches
• As pressure is created the piston rises in the cylinder due to the upward force
• Weight masses are added to balance this force
• Weight masses are inscribed with the instrument's serial number and the nominal pressure value relative to the high- or low-pressure piston
• Final pressure is determined by combining the nominal values on the weight masses added to the piston
• Piston and cylinder assembly includes a floatation indicator
• Piston and cylinder assembly is constructed in accordance with the highest standards
• Piston and cylinder assembly features certified accuracies traceable to international standard laboratories, such as NIST
• Piston and cylinder assembly has been designed to limit the effects of thermal coefficients and distortion whilst maintaining stability and durability
• Supplied with a traceable certificate of accuracy
• Calibrated to standard gravity
• Standard accuracy of 0.015% can be improved to 0.008%
• Can be calibrated to the user’s local gravity
• Adjustable feet
• Mounted spirit level
• Test-station design with O-rings
• Supplied with 1/8 inch, 1/4 inch, 3/8 inch and 1/2 inch NPT or BSP female adaptors
• PTFE tape and/or wrenches are not required when attaching additional instruments
• Clear, acrylic reservoir
• Built-in drain plug
• Detachable lid
• Weight masses can be stored in a secure weight box with an automatic locking mechanism
• Ideal for calibrating pressure sensing instruments accurately, reliably and simply.

What’s Included?

• Your Choice of Fluke P3111-XXX Oil Hydraulic Deadweight Tester
• Weight Masses
• Removable Lid
• Traceable Certificate of Accuracy
• 1/8 inch, 1/4 inch, 3/8 inch and 1/2 inch NPT or BSP female adaptors
• M20 and M14 Metric Adapters
• Spare Seals
• Operating Fluid (where applicable)