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Fluke Calibration P3100 Series:
P3111, P3112, P3113, P3114, P3115, and P3116 Hydraulic Deadweight Testers, Oil Operated, single PCU

  • Pressure ranges to 20,000 psi (1,400 bar)
  • Accuracy better than 0.015 % of reading (Increased accuracy option of 0.008 % with PressCal Software)
  • Mineral oil and distilled water models
  • Dual piston models allow calibration over a wide range
  • Psi, bar, kgf/cm2, kPa and MPa ranges available
  • Dual piston models for calibration over a wide pressure range
  • Built-in lever style hand pump now standard on all hydraulic models
  • Mounted spirit level and adjustable feet
  • High quality screw press for fine pressure control
  • Test station design with O-rings eliminates the need for PTFE tape or wrenches
  • Acrylic reservoir provides visibility of fluid level and quality
  • Improved case with spring-loaded latches for hood
  • Built-in drain plug to remove old fluid
  • Sturdy weight box with hinged lid and side han-dles for easy transport
Fluke Calibration P3000Click for larger image
Fluke Calibration P3100 Series Shown
Product Information
Datasheet 2.06 MB PDF
Manual 1.64 MB PDF
PDF HelpPDF Help

The Fluke Calibration P3100 Models are available in single or dual piston formats for increased operating ranges. Units can be supplied in psi, bar, kgf/cm2, and MPa. The Fluke Calibration P3100 are robust instruments are highly accurate, quick and easy to use. Units feature a built-in priming pump for large volume applications, piston flotation indicators and a high quality screw press for fine pressure control.

The Fluke Calibration P3100 Series is the culmination of over 50 years of experience in the production and design of high performance pressure standards. With features designed to improve accuracy and performance, increase reliability and simplify operation these deadweight testers can be used to calibrate virtually any pressure sensing device, including transducers, transmitters, gauges or pressure switches.

The Fluke Calibration P3100 instrument is supplied with a detachable lid which makes it neat, compact and easily portable. The weight masses are stored in a high-quality case with a self locking mechanism to protect them during transit. All Fluke Calibration P3100 units are provided with a traceable certificate of accuracy, weight mass details, 1/8 inch, 1/4 inch, 3/8 inch and 1/2 inch NPT or BSP female adaptors, operating fluid (where applicable) and spare seals. The piston/cylinder assemblies are manufactured to the very highest standards with certified accuracies traceable to international standards laboratories such as the National Institute of Standards and Technology (NIST).

Operating principle
Deadweight testers are the primary standard for pressure measurement. Utilizing the well proven piston-gauge system consisting of a vertically mounted, precision lapped piston and cylinder assembly, accurately calibrated weight masses (Force) are loaded on the piston (Area), which rises freely within its cylinder. These weights balance the upward force created by the pres-sure within the system.The pressure is measured when placed on a correctly spinning and floating piston. The total pressure measured is the summation of the weights plus the piston weight carrier assembly.

Instrument base
There are three basic variations in the hydraulic offering; single low pressure, single high pressure and dual piston models. Pressure is generated and controlled by means of a high quality screw press located on the front of the tester. A built-in hand pump is included as standard for all hydraulic models to prime the system and accommodate large volume requirements.

Piston/cylinder assemblies
The piston/cylinder assembly is the heart of each deadweight tester. They are manufactured from materials that provide stability, durability, and low thermal coefἀcients and distortion. Our experience and knowledge of piston/cylinder production and calibration ensure the precision and performance required for today’s demanding calibration requirements.

Weight Masses
Standard weight masses are series 3 non-magnetic austenitic stainless steel. Each mass is marked with the serial number of the instru-ment and the nominal pressure value relative to the high or low-pressure piston, when applicable. Optional fractional weights are stainless steel and/or solution heat treated aluminum.

Gravity correction
Gravity varies significantly with geographical location and this variation has a direct effect on the force of the weights and the accuracy of the deadweight tester. Each instrument can be calibrated to local gravity at no extra cost. If unspecified, instruments will be calibrated to Standard Gravity at 980.665 cm/s2.

Pressure ranges
Oil operated Ranges to 20,000 psi (1,400 bar)
Distilled water operated Ranges to 10,000 psi (700 bar)
Accuracy ± 0.015 % of reading (± 0.008 % optional with PressCal Software)
Note: 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
Density: 7.8 g/cm3
Optional fractional weights Solution heat treated aluminum
Density: 2.7 g/cm3
Piston material Tungsten carbide with nickel binder
Density: 15.0 g/cm3
Cylinder material Hardened martensitic steel
Tungsten carbide (water above 500 psi, 35 bar)
Thermal coefficients of expansion Oil piston/cylinder 16.5 ppm/°C
Water (above 500 psi, 35 bar) 11 ppm/°C
General Specifications
Test port adaptors M14 X 1.5, M20 X 1.5, 1/8 in, 1/4 in, 3/8 in and 1/2 in NPT and BSP
Weight 16 kg (36 lb)
Dimensions (W x D x H) 440 mm x 300 mm x 215 mm (17.5 in x 12 in x 8.5 in)
Mass set weight (typical) 36 kg (80 lb)
Reservoir volume 150 cm3 (9.2 in3)
Screw press displacement 5.5 cm3 (0.34 in3)
Pump displacement 4.7 cm3 (0.29 in3) per stroke
O-ring seal materials Viton
Weight increments
Minimum standard weight increments
Up to 500 psi (35 bar) 1 psi (0.1 bar)
500 psi to 5 000 psi (35 bar to 350 bar) 10 psi (1 bar)
5 000 psi to 20 000 psi (350 bar to 1 400 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 psi to 5 000 psi (35 bar to 350 bar) 1 psi (0.1 bar)
5 000 psi to 20 000 psi (350 bar to 1 400 bar) 2 psi (0.2 bar)
Operating fluids
Mineral oil Shell spindle oil 22, our reference 55-655, viscosity 40 cs@ 20°C (68°F)
Distilled or deionized water
Ordering Information
Model Description Buy Online Price
MFR ID: 4184880 
Fluke Calibration P3111-BAR Oil Deadweight Tester, 35 Bar Buy Now $9,340.00
MFR ID: 4184898 
Fluke Calibration P3111-KGCM2 Oil Deadweight Tester, 35 Kgf/Cm2 Buy Now $9,340.00
MFR ID: 4184914 
Fluke Calibration P3111-KPA Oil Deadweight Tester, 3500 Kpa Buy Now $9,340.00
MFR ID: 4184923 
Fluke Calibration P3111-MPA Oil Deadweight Tester, 3.5 Mpa Buy Now $9,340.00
MFR ID: 4184906 
Fluke Calibration P3111-PSI Oil Deadweight Tester, 500 Psi Buy Now $9,340.00
MFR ID: 4184945 
Fluke Calibration P3112-BAR Oil Deadweight Tester, 140 Bar Buy Now $9,470.00
MFR ID: 4184950 
Fluke Calibration P3112-KGCM2 Oil Deadweight Tester, 140 Kgf/Cm2 Buy Now $9,470.00
MFR ID: 4184977 
Fluke Calibration P3112-MPA Oil Deadweight Tester, 14 Mpa Buy Now $9,470.00
MFR ID: 4184961 
Fluke Calibration P3112-PSI Oil Deadweight Tester, 2000 Psi Buy Now $9,470.00
MFR ID: 4184992 
Fluke Calibration P3113-BAR Oil Deadweight Tester, 350 Bar Buy Now $8,810.00
MFR ID: 4185007 
Fluke Calibration P3113-KGCM2 Oil Deadweight Tester, 350 Kgf/Cm2 Buy Now $8,810.00
MFR ID: 4185029 
Fluke Calibration P3113-MPA Oil Deadweight Tester, 35 Mpa Buy Now $8,810.00
MFR ID: 4185018 
Fluke Calibration P3113-PSI Oil Deadweight Tester, 5000 Psi Buy Now $8,810.00
MFR ID: 4185041 
Fluke Calibration P3114-BAR Oil Deadweight Tester, 700 Bar Buy Now $8,810.00
MFR ID: 4185052 
Fluke Calibration P3114-KGCM2 Oil Deadweight Tester, 700 Kgf/Cm2 Buy Now $8,810.00
MFR ID: 4185076 
Fluke Calibration P3114-MPA Oil Deadweight Tester, 70 Mpa Buy Now $8,810.00
MFR ID: 4185065 
Fluke Calibration P3114-PSI Oil Deadweight Tester, 10K Psi Buy Now $8,810.00
MFR ID: 4185090 
Fluke Calibration P3115-BAR Oil Deadweight Tester, 1100 Bar Buy Now $11,100.00
MFR ID: 4185104 
Fluke Calibration P3115-KGCM2 Oil Deadweight Tester, 1100 Kgf/Cm2 Buy Now $11,100.00
MFR ID: 4185128 
Fluke Calibration P3115-MPA Oil Deadweight Tester, 110 Mpa Buy Now $11,100.00
MFR ID: 4185119 
Fluke Calibration P3115-PSI Oil Deadweight Tester, 16000 Psi Buy Now $11,100.00
MFR ID: 4185143 
Fluke Calibration P3116-BAR Oil Deadweight Tester, 1400 Bar Buy Now $13,100.00
MFR ID: 4185155 
Fluke Calibration P3116-KGCM2 Oil Deadweight Tester, 1400 Kgf/Cm2 Buy Now $13,100.00
MFR ID: 4185170 
Fluke Calibration P3116-MPA Oil Deadweight Tester, 140 Mpa Buy Now $13,100.00
MFR ID: 4185162 
Fluke Calibration P3116-PSI Oil Deadweight Tester, 20K Psi Buy Now $13,100.00
Optional Accessories
MFR ID: 3905893
Fluke Calibration 55-655 St-55 Operating Fluid, 1 Qt for 6531, 6532, P5514, P5515 Or P31Xx Buy Now Sale $62.10
(Reg. $69.00)
MFR ID: 4185767
Fluke Calibration P5544-STD Two Gauge Stand, Up To 70 Mpa (10K Psi )for all Pressurements Mainframes Buy Now $1,020.00
MFR ID: 4185771
Fluke Calibration PRESSCAL Presscal Software (Improved Accuracy)(Specify Instrument Serial Number) Buy Now $1,130.00
Conversion Weight Sets for the P3111
MFR ID: 4202193
Fluke Calibration CWS3111-BAR Conversion Weight Set for P3111/P3211 Bar Buy Now $3,190.00
MFR ID: 4202204
Fluke Calibration CWS3111-KGCM2 Conversion Weight Set for P3111/P3211 Kg/Cm2 Buy Now $3,190.00
MFR ID: 4202228
Fluke Calibration CWS3111-KPA Conversion Weight Set for P3111/P3211 Kpa Buy Now $3,190.00
MFR ID: 4202237
Fluke Calibration CWS3111-MPA Conversion Weight Set for P3111/P3211 Mpa Buy Now $3,190.00
MFR ID: 4202219
Fluke Calibration CWS3111-PSI Conversion Weight Set for P3111/P3211 Psi Buy Now $3,190.00
Conversion Weight Sets for the P3112
MFR ID: 4202243
Fluke Calibration CWS3112-BAR Conversion Weight Set for P3112 Bar Buy Now $3,190.00
MFR ID: 4202255
Fluke Calibration CWS3112-KGCM2 Conversion Weight Set for P3112 Kgcm2 Buy Now $3,190.00
MFR ID: 4202270
Fluke Calibration CWS3112-MPA Conversion Weight Set for P3112 Mpa Buy Now $3,190.00
MFR ID: 4202262
Fluke Calibration CWS3112-PSI Conversion Weight Set for P3112 Psi Buy Now $3,190.00
Conversion Weight Sets for the P3113/P3114/P3213/P3214
MFR ID: 4202281
Fluke Calibration CWS3113-BAR Conversion Weight Set for P3113/P3114/P3213/P3214 Bar Buy Now $3,190.00
MFR ID: 4202296
Fluke Calibration CWS3113-KGCM2 Conversion Weight Set for P3113/P3114/P3213/P3214 Kgcm2 Buy Now $3,190.00
MFR ID: 4202313
Fluke Calibration CWS3113-MPA Conversion Weight Set for P3113/P3114/P3213/P3214 Mpa Buy Now $3,190.00
MFR ID: 4202308
Fluke Calibration CWS3113-PSI Conversion Weight Set for P3113/P3114/P3213/P3214 Psi Buy Now $3,190.00
Conversion Weight Sets for the P3115
MFR ID: 4202324
Fluke Calibration CWS3115-BAR Conversion Weight Set for P3115 Bar Buy Now $4,180.00
MFR ID: 4202336
Fluke Calibration CWS3115-KGCM2 Conversion Weight Set for P3115 Kgcm2 Buy Now $4,180.00
MFR ID: 4202351
Fluke Calibration CWS3115-MPA Conversion Weight Set for P3115 Mpa Buy Now $4,180.00
MFR ID: 4202349
Fluke Calibration CWS3115-PSI Conversion Weight Set for P3115 Psi Buy Now $4,180.00
Conversion Weight Sets for the P3116
MFR ID: 4202360
Fluke Calibration CWS3116-BAR Conversion Weight Set for P3116 Bar Buy Now $4,240.00
MFR ID: 4202360
Fluke Calibration CWS3116-BAR Conversion Weight Set for P3116 Bar Buy Now $4,240.00
MFR ID: 4202372
Fluke Calibration CWS3116-KGCM2 Conversion Weight Set for P3116 Kgcm2 Buy Now $4,240.00
MFR ID: 4202397
Fluke Calibration CWS3116-MPA Conversion Weight Set for P3116 Mpa Buy Now $4,240.00
MFR ID: 4202385
Fluke Calibration CWS3116-PSI Conversion Weight Set for P3116 Psi Buy Now $4,240.00