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Fluke P3123-XXX Oil Hydraulic Deadweight Tester – Dual Pump

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Fluke P3123-XXX
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The Fluke P3123-XXX Oil Hydraulic Deadweight Tester – Dual Pump can be used to calibrate a wide variety of pressure sensing instruments, including transducers, transmitters, gauges and pressure switches. This instrument has been designed with versatility in mind and as such includes two pumps allowing the four variations below to span as wide a pressure range as possible. The four models available vary in regards to their pressure ranges and measurement units, the table beneath highlights the differences between these testers.

Product Code Product Name  Pressure Range Maximum Vacuum Range 
P3123-BAR Fluke P3123-BAR Oil Hydraulic Deadweight Tester, Dual Range - 350 bar 1 to 350 bar 0.1 bar
P3123-KGCM2 Fluke P3123-KGCM2 Oil Hydraulic Deadweight Tester, Dual Range - 350 kgf/cm2 1 to 350 kgf/cm2 0.1 kgf/cm2
P3123-PSI Fluke P3123-PSI Oil Hydraulic Deadweight Tester, Dual Range - 5000 psi 10 to 5000 psi 1 psi
P3123-MPA Fluke P3123-MPA Oil Hydraulic Deadweight Tester, Dual Range - 35 MPa 0.1 to 35 MPa 0.01 MPA

 

For a quick introduction to these testers, please see the video below.

Measuring Pressure with a Deadweight Tester

The integrated hand-pump may be utilised to prime the deadweight tester before it is used. It also facilitates the Fluke P3123-XXX Oil Hydraulic Deadweight Tester’s ability to accommodate large volume requirements. Like the single pump models, the Fluke P3123-XXX Oil Hydraulic Deadweight Tester uses mineral oil in order to create hydraulic pressure; this pressure is created using the high-quality screw press which also facilitates fine pressure adjustments. During calibration, the user is able to monitor the level and quality of the oil as the reservoir is constructed from clear acrylic. Once a calibration has been completed, the remaining mineral oil may be drained quickly and easily via the built-in drain plug.

With the creation of hydraulic pressure, the piston will rise in the cylinder, this upward force is balanced using accurately calibrated weight masses. These weight masses are marked with the instrument’s serial number and the nominal pressure values relative to high- or low-pressure pistons. The final pressure value is calculated by adding together the relevant nominal pressure values on each of the weight masses placed on the piston. For further information regarding this method, please see the video below.

P3100 Series Hydraulic Deadweight Tester - Video Demo

Weight masses are constructed from series 3, non-magnetic, austenitic, stainless steel and may be stored in a robust weight box with a self-locking mechanism, ensuring that they can be safely and securely transported between worksites.  

Adding to this product’s ease of operation is its removable lid which allows the tester to be easily transported to, across and between worksites. Furthermore, the inclusion of adjustable feet and a mounted spirit level ensures that the operator is able to set up the Fluke P3123-XXX Oil Hydraulic Deadweight Tester accurately in a variety of environments. In addition to this, its test-station design with O-rings and the inclusion of 1/8 inch, 1/4 inch, 3/8 inch and 1/2 inch NPT or BSP female adaptors removes the need for PTFE tape and/or wrenches when attaching additional instruments.

As well as its practicality and ease-of-use, the Fluke P3123-XXX Oil Hydraulic Deadweight Tester has also been optimised for accuracy and as such includes a piston and cylinder assembly with floatation indicator that has been constructed in accordance with the highest standards. It has been designed to reduce the effects of distortion and thermal coefficients whilst maintaining the Fluke P3123-XXX’s stability and durability. Furthermore, the piston and cylinder assembly includes certified accuracies traceable to international standards laboratories, such as NIST (National Institute of Standards and Technology). 

In addition to this, the Fluke P3123-XXX Oil Hydraulic Deadweight Tester is supplied with a traceable certificate of accuracy. It is also calibrated to standard gravity (980.665cm/s²). These features give the instrument a standard accuracy of 0.015% which may be improved to 0.008% via adjusting the set-up of the deadweight tester, for instance by calibrating it to the user’s local gravity.

The wide measurement range, accuracy and practical, easy-to-use design of the Fluke P3123-XXX Oil Hydraulic Deadweight Tester makes it suitable for calibrating an eclectic variety of pressure sensing instruments.

Fluke P3123-XXX Oil Hydraulic Deadweight Tester – Dual Pump Key Features

  • Calibrate pressure sensing instruments such as transducers, transmitters, gauges and pressure switches
  • Includes two pumps facilitating wide pressure ranges
  • Available in four models with various pressure ranges and measurement units
  • Integrated hand-pump for priming the system and accommodating large volume requirements
  • Operates using mineral oil
  • High-quality screw press can be used to create hydraulic pressure and make fine pressure adjustments
  • Clear, acrylic reservoir
  • Built-in drain plug
  • When hydraulic pressure is created the piston is forced upwards in its cylinder
  • To balance this upwards force, weight masses are added to the piston
  • Weight masses are accurately calibrated and include the nominal pressure values relative to high- or low-pressure pistons
  • Weight masses also include the instrument’s serial number
  • The final pressure value is determined via adding together the relevant pressure values marked on each of the weight masses placed on the piston
  • Weight masses are made of series 3, non-magnetic, austenitic, stainless steel
  • Weight masses can be stored in a robust weight box with a self-locking mechanism
  • Removable lid
  • 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 and spare seals
  • Removes the need for PTFE tape and/or wrenches when attaching additional instruments
  • Piston and cylinder assembly with floatation indicator constructed in accordance with the highest standards
  • Assembly reduces the effects of distortion and thermal coefficients while maintaining stability and durability
  • Assembly includes certified accuracies traceable to international standard laboratories (NIST)
  • Supplied with a traceable certificate of accuracy
  • Calibrated to standard gravity (980.665cm/s²)
  • Standard accuracy of 0.015% may be improved to 0.008%
  • Can be calibrated to the user’s local gravity
  • A versatile instrument suitable for calibrating an eclectic array of pressure sensing instruments

What’s Included?

  • Your Choice of Fluke P3123-XXX Oil Hydraulic Deadweight Tester – Dual Pump
  • Traceable Certificate of Accuracy
  • Weight Masses
  • Removable Lid
  • 1/8 inch, 1/4 inch, 3/8 inch and 1/2 inch NPT or BSP female adaptors
  • Spare Seals
  • Operating Fluid (where applicable)

Fluke P3123-XXX Oil Deadweight Tester – Dual Pump Technical Specifications

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 
Thermal coefficients of expansion Oil piston/cylinder 16.5 ppm/°C
General Specifications 
Test port adaptors 1/8, 1/4, 3/8 and ½ NPT or BSP
Instrument weight 36 lbs (16 kg)
Instrument size 17.5 W x 12 D x 8.5 H
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 Fluid
Mineral oil Shell spindle oil 22, our reference 55-655, viscosity 40 cs@ 20°C

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Additional Information
SKU Fluke P3123-XXX
Manufacturer Part Code 4185196

Made to Order item: This item is made-to-order with a lead time once the order is placed. Once an order is placed it cannot be cancelled or returned unless the unit is found to be faulty.

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