Fluke P3125XT-XXX Oil Extended Range Deadweight Tester– Dual Pump
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The Fluke P3125XT-XXX Oil Extended Range Deadweight Tester– Dual Pump includes two internal pumps allowing it to span a wide pressure range. This makes it suitable for calibrating an extensive variety of pressure sensing instruments, such as transducers, transmitters, gauges and pressure switches.
The Fluke P3125XT-XXX Oil Extended Range Deadweight Tester– Dual Pump is available in three models with varying pressure ranges and measurement units. Each of these models improves upon the pressure range of their respective sister product, the Fluke P3125-XXX Oil Deadweight Tester, available here. For further information regarding the differences between the three available Fluke P3125XT-XXX Oil Extended Range Deadweight Tester– Dual Pump models, please see the table below.
| Product Code | Product Name | Pressure Range | Maximum Vacuum Range |
| P3125XT-BAR | Fluke P3125XT-BAR Oil Hydraulic Extended Range Deadweight Tester - Dual Pump 1200 bar | 1 to 1200 bar | 0.2 bar |
| P3125XT-KGCM2 | Fluke P3125XT-KGCM2 Oil Hydraulic Extended Range Deadweight Tester - Dual Pump 1200 kgf/cm2 | 1 to 1200 kgf/cm2 | 0.1 kgf/cm2 |
| P3125XT-MPA | Fluke P3125XT-MPA Oil Hydraulic Extended Range Deadweight Tester - Dual Pump 120 MPa | 0.1 to 120 MPa | 0.02 MPA |
The integrated hand pump allows the user to prime the system prior to performing calibrations and is able to accommodate large volume requirements. In order to generate hydraulic pressure, the Fluke P3125XT-XXX Oil Extended Range Deadweight Tester utilises mineral oil and includes a high-quality screw press which may be used to make fine pressure adjustments. During operation, the user can clearly view the oil level and quality through the clear, acrylic reservoir. Moreover, post-calibration he/she can drain the oil via the integrated drain plug quickly and easily.
As hydraulic pressure is created the piston will rise in the cylinder; to counterbalance this upward force accurately calibrated weight masses are added to the piston. Each of these weight masses is constructed from series 3, non-magnetic, austenitic, stainless steel and is marked with the instrument’s serial number and the nominal pressure values relative to high- and low-pressure pistons. In order to determine the final pressure, the relevant nominal values on each of the weight masses added to the piston are combined; please see the video below for further information regarding this method.
Weight masses can be stored in a robust weight case with a self-locking mechanism, keeping them safe and secure during transit.
The inclusion of a removable lid with the Fluke P3125XT-XXX Oil Extended Range Deadweight Tester also ensures that it can be transported between worksites easily. Its test-station design with O-rings, adjustable feet and mounted spirit level make accurately setting up the deadweight tester in a variety of environments quick and easy. Its design, as well as 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, again adding to the instrument’s convenience.
In addition to its versatility and practicality, the Fluke P3125XT-XXX Oil Extended Range Deadweight Tester is accurate. It has a standard accuracy of 0.015%, is supplied with a traceable certificate of accuracy and is calibrated to standard gravity (980.665cm/s²). Its piston and cylinder assembly with a floatation indicator also works to maintain this product’s accuracy; it too has certified accuracies traceable to international standards laboratories, such as NIST (National Institute of Standards and Technology), having been manufactured in accordance with the highest standards. The design of the piston and cylinder assembly reduces the effects of distortion and thermal coefficients, whilst maintaining the deadweight tester’s stability and durability.
Be that as it may, the accuracy of the Fluke P3125XT-XXX Oil Extended Range Deadweight Tester can be improved further to 0.008% via, for instance, calibrating it in accordance with the user’s local gravity, thereby accounting for the effect of this force on the weight masses.
For further information regarding deadweight testers, please watch the video below.
The Fluke P3125XT-XXX Oil Extended Range Deadweight Tester – Dual Pump is a sophisticated, accurate, versatile product optimised for calibrating pressure sensing instruments simply and efficiently.
Fluke P3125XT-XXX Oil Extended Range Deadweight Tester– Dual Pump Key Features
- Includes two internal pumps providing it with a wide pressure range
- Suitable for calibrating an extensive variety of pressure sensing instruments, including transducers, transmitters, gauges and pressure switches
- Available in three models with varying pressure ranges and measurement units
- Improves upon the pressure ranges found on its sister product the Fluke P3125-XXX Oil Deadweight Tester- Dual Pump
- Integrated hand pump for priming the system and accommodating large volume requirements
- Operates using mineral oil
- High-quality screw press for adjusting the pressure
- Clear, acrylic reservoir
- Integrated drain plug
- Accurately calibrated weight masses are added to the piston as it rises due to the creation of hydraulic pressure
- Weight masses are marked with the instrument’s serial number and the nominal pressure values relative to high- or low-pressure pistons
- The relevant nominal pressure values marked on the weight masses added to the cylinder are combined to determine the final pressure
- Weight masses are made from 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
- Adjustable feet
- Mounted spirit level
- 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 connecting additional instruments
- Provided with spare seals
- Standard accuracy of 0.015%
- Includes a traceable certificate of accuracy
- Calibrated to standard gravity (980.665cm/s²)
- Piston and cylinder assembly has certified accuracies traceable to international standards laboratories (NIST)
- Piston and cylinder assembly is constructed in accordance with the highest standards
- Piston and cylinder assembly includes a floatation indicator
- Piston and cylinder assembly is optimised for reducing the effects of distortion and thermal coefficients
- Standard accuracy can be improved to 0.008%
- Can be calibrated in accordance with the user’s local gravity
- Sophisticated, accurate, versatile instrument optimised for calibrating pressure sensing instruments quickly and simply
What’s Included?
- Your Choice of Fluke P3125XT-XXX Oil Extended Range Deadweight Tester– Dual Pump
- Traceable Certificate of Accuracy
- Weight Set
- 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 P3125XT-XXX Oil Extended Range 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 |
| SKU | Fluke P3125XT-XXX |
|---|---|
| Manufacturer Part Code | 4378330 |
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.
