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Fluke P3112 Oil Hydraulic Deadweight Test
The Fluke P3112 Oil Hydraulic Deadweight Tester can be used to create hydraulic pressure for the purpose of calibrating pressure sensing instruments such as transducers, transmitters, gauges and pressure switches. It is available in four models which vary with regards to their pressure ranges and measurement units. For further information regarding these models please see the table below, and for a quick introduction to these instruments please view the video beneath the table.
| Product Code | Product Name | Pressure Range |
| P3112-BAR | Fluke P3112-BAR Oil Hydraulic Deadweight Tester - 140 bar | 4 to 140 bar |
| P3112-KGCM2 | Fluke P3112-KGCM2 Oil Hydraulic Deadweight Tester - 140 kgf/cm2 | 4 to 140 kgf/cm |
| P3112-PSI | Fluke P3112-PSI Oil Hydraulic Deadweight Tester - 2000 psi | 40 to 2000 psi |
| P3112-MPA | Fluke P3112-MPA Oil Hydraulic Deadweight Tester - 14 MPa | 0.4 to 14 MPa |
Measuring Pressure with a Deadweight Tester
These models operate using mineral oil, the level and quality of this oil are viewable via the clear, acrylic reservoir. Additionally, oil can be easily drained via the integrated drain plug. The built-in hand pump can be used to prime the Fluke P3112 Oil Hydraulic Deadweight Tester and may be used to accommodate large volume requirements, whilst its high-quality screw press facilitates the creation and fine adjustment of hydraulic pressure.
With the creation of hydraulic pressure, the piston is forced to rise within its cylinder. To counteract this upward force accurately calibrated weight masses are added to the piston. Each weight mass is marked with nominal pressure values, relative to the high- or low-pressure piston, as well as the instrument’s serial number. In order to determine the final pressure, the nominal values marked on the weight masses that have been placed on the piston are added together; please see the video below for further information regarding this process.
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, keeping them safe and secure during transit.
The detachable lid supplied with the Fluke P3112 Oil Hydraulic Deadweight Tester also works to ensure the safe and secure transportation of the apparatus. Other practical features present on the Fluke P3112 Oil Hydraulic Deadweight Tester are:
- A test station design with O-rings – this design combined with the 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 additional instruments.
- Adjustable feet and a mounted spirit level – ensures the instrument can be set-up accurately even on unlevel surfaces.
In addition to practicality, the Fluke P3112 Oil Hydraulic Deadweight Tester has been optimised for accuracy and to this end is supplied with a traceable certificate of accuracy. The piston and cylinder assembly with floatation indicator includes certified accuracies that are traceable to international standards laboratories, such as NIST (National Institute of Standards and Technology). The sophisticated construction of the piston and cylinder assembly works to maintain this product’s stability and durability while limiting the effects of thermal coefficients and distortion.
Moreover, the Fluke P3112 Oil Hydraulic Deadweight Tester is calibrated to standard gravity (980.665cm/s²) and has a standard accuracy of 0.015%. However, it is possible to improve the accuracy of this instrument to 0.008% by, for instance, calibrating it to the user’s local gravity.
The Fluke P3112 Oil Hydraulic Deadweight Tester is optimised for accuracy, repeatability and efficiency, it is ideal for calibrating multiple pressure sensing instruments.
Fluke P3112 Oil Hydraulic Deadweight Tester Key Features
- Create hydraulic pressure in order to calibrate pressure sensing instruments
- Calibrate transducers, transmitters, gauges and pressure switches
- Available in four models with various pressure ranges and measurement units
- Operates using mineral oil
- Clear, acrylic reservoir
- Integrated drain plug
- Built-in hand-pump for priming the system
- Built-in hand-pump accommodates large volume requirements
- High-quality screw press facilitates the creation and fine adjustment of hydraulic pressure
- When pressure is created the piston rises in the cylinder
- To balance this upward force, accurately calibrated weight masses are added to the piston
- Weight masses are marked with nominal pressure values relative to the high- or low-pressure piston
- To determine the final pressure the nominal values marked on each of the weight masses that have been placed on the piston are added together
- Weight masses are marked with the instrument’s serial number
- Weight masses are constructed from series 3, non-magnetic, austenitic, stainless steel
- Weight masses can be stored in a robust weight box with a self-locking mechanism
- Detachable lid
- Test-station design with O-rings
- Supplied with spare seals
- Supplied with 1/8 inch, 1/4 inch, 3/8 inch and 1/2 inch NPT or BSP female adaptors
- No need for PTFE tape or wrenches when attaching additional instruments
- Traceable certificate of accuracy
- Piston and cylinder assembly with floatation indicator includes certified accuracies traceable to international standards laboratories, such as NIST
- Piston and cylinder assembly works to maintain stability and durability whilst reducing the effects of distortion and thermal coefficients
- Calibrated to standard gravity (980.665cm/s²)
- Standard accuracy of 0.015%
- Can be calibrated to local gravity
- Accuracy can be improved to 0.008%
- Optimised for accurately, reliably and efficiently calibrating multiple pressure sensing instruments
What’s Included?
- Your Choice of Fluke P3112 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)
Fluke P3112 Oil Hydraulic Deadweight Test 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 |
Reviews
Additional Information
| SKU | FLK-P3112 |
|---|---|
| Manufacturer Part Code | 4184945 |
