Fluke P3031-XXX Gas Deadweight Tester – Liquid Lubricated

The Fluke P3031-XXX Gas Deadweight Tester – Liquid Lubricated can be used to calibrate pressure sensing instruments such as transmitters, transducers, gauges and pressure switches. It is available in five models with varying pressure ranges and measurement units. For further information, please see the table below.

The Fluke P3031-XXX Gas Deadweight Tester includes a /NPT female port to which a gas supply may be connected in order to create pneumatic pressure. The high-quality needle can be used to make minor adjustments to the pressure created.

In order to ensure that the gas supply is not contaminated, the Fluke P3031-XXX Gas Deadweight Tester includes an oil lubricated piston/cylinder assembly. The gas introduced to the piston/cylinder assembly acts directly on the surface of the oil; this ensures that there is a rate-less transfer of pressure within the tester. The design of this system works to prevent the over-filling of the chamber and the possibility of contamination within the gas system.

HOWEVER; there is a potential for ‘oil-mist’ transfer as there is no barrier between the gas and the oil, making it unsuitable for oxygen service. A version of this tester with an oxygen compatible fluid is available, please call for details.

As indicated above, maintaining the reliability and accuracy of this instrument is at the forefront of its design. To this end, its piston and cylinder assembly with floatation indicator has been optimised to maintain the deadweight tester’s durability and stability whilst minimising the effects of distortion and thermal coefficients. It has been manufactured 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 instrument has a standard accuracy of 0.015% and is supplied with an ISO 17025 accredited calibration certificate and is calibrated in accordance with standard gravity (980.665cm/s²). The standard accuracy can be improved to 0.008% by adjusting the set-up of the tester, for instance, it may be calibrated to the user’s local gravity, thereby accounting for the effect of this localised gravitational pull on the weight masses.

More practically this instrument includes adjustable feet and a mounted spirit level, ensuring that it can be set up in a variety of environments without compromising its accuracy.

In addition to this, the weight masses designed to be used with the Fluke P3031-XXX Gas Deadweight Tester have also been accurately calibrated and include inscribed nominal pressure values relative to the high- or low-pressure piston. These weight masses are also marked with the instrument’s serial number. As pneumatic pressure is created the piston will rise within the cylinder; to counterbalance this upwards force accurately calibrated weight masses are added to the piston. To determine the final pressure, the nominal values marked on each weight mass are added together. For further information regarding this method, please see the video below.

The weight masses used with this deadweight tester are made from series 3, non-magnetic, austenitic, stainless steel and may be stored in a rugged weight case with a secure locking mechanism, facilitating safe and secure transportation between worksites.

Also adding to the practicality of this instrument is its removable lid (which also ensures that the deadweight tester can be transported safely and securely between sites) and its test station design with O-rings. This design combined with the supplied 1/8, 1/4, 3/8, 1/2 NPT and BSP, and M20 and M14 metric adapters and spare seals, remove the need for PTFE tape or wrenches when attaching instruments-under-investigation.

The Fluke P3031-XXX Gas Deadweight Tester – Liquid Lubricated can be used to calibrate a wide range of pressure sensing instruments and may be used accurately in a variety of environments. It is an easy-to-use, reliable, versatile pressure calibrator.

Fluke P3031-XXX Gas Deadweight Tester – Liquid Lubricated Key Features

• Calibrate pressure sensing instruments such as transmitters, transducers, gauges and pressure switches
• Available in five models with varying pressure ranges and measurement units
• Attach a gas supply to the /NPT female port to create pneumatic pressure
• Use the high-quality needle to make fine pressure adjustments
• Oil lubricated piston/cylinder assembly to prevent the over-filling of the chamber and the contamination of the gas system
• NOT suitable for applications involving oxygen (oxygen compatible models are available, please call for details)
• Piston and cylinder assembly includes a floatation indicator
• Piston and cylinder assembly maintains the tester’s durability and stability whilst minimising the effects of distortion and thermal coefficients
• Piston and cylinder assembly is manufactured in accordance with the highest standards
• Piston and cylinder assembly has certified accuracies traceable to international standards laboratories (NIST)
• Standard accuracy of 0.015% may be improved to 0.008%
• Supplied with an ISO 17025 accredited calibration certificate
• Calibrated to standard gravity (980.665cm/s²)
• Option to calibrate the tester to the user’s local gravity
• Adjustable feet
• Mounted sprit level
• The instrument’s serial number is marked on the accurately calibrated weight masses
• The nominal pressure value relative to the high or low-pressure piston is also marked on the weight masses
• As pneumatic pressure is created the piston will rise in the cylinder
• Weight masses are added to counteract this upward force
• The nominal pressure values on each weight mass added to the piston are combined to determine the final pressure
• Weight masses are constructed from series 3, non-magnetic, austenitic, stainless steel
• Weight masses may be stored in a rugged weight case with secure locking mechanism
• Removable lid
• Test station design with O-rings
• Supplied with 1/8, 1/4, 3/8, 1/2 NPT and BSP, and M20 and M14 metric adapters and spare seals
• PTFE tape and wrenches are not required when attaching additional instruments
• Easy-to-use, reliable, versatile pressure calibrator

What’s Included?

• Your Choice of Fluke P3031-XXX Gas Deadweight Tester – Liquid Lubricated
• Weight Masses
• Removable Lid
• 1/8, 1/4, 3/8, 1/2 NPT and BSP adapters
• M20 and M14 metric adapters
• ISO 17025 Accredited Calibration Certificate
• Spare Seals