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Pneumatic Deadweight Tester P3000

The P3000 Pneumatic Deadweight Tester.


Pneumatic Deadweight testers are the primary standards for pressure measurements.
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 pressure 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.

Pneumatic deadweight tester.

Model  Description 
P30XX-X  Pneumatic Deadweight Tester.

Pressure ranges from Vacuum through 2,000 psi (140 bar)
Accuracy better than 0.015% of reading. (Increased accuracy option of 0.008%.)
Gas operated with optional hand pumps
Dual vacuum/pressure models available
Psi, bar, kgf/cm², kPa and MPa ranges available

The Pneumatic Deadweight Tester, DWT can be leveled by means of four adjustable feet and a spirit
level.
The set of non-magnetic weights is conveniently stored on the case and the tester comes complete
with a set of "quick-fit" adaptors and seals for easy mounting of the items under test to the
Deadweight Tester.

Pneumatic Deadweight Testers Models
Air Operated - Single PCU
Model Pressure range Model Pressure range
P3012-4-P
P3012-6-P
P3012-7-P
1.5 to 100 kPa
15 to 1,000 mbar
5 to 400 inH2O
P3013-4-P
P3013-6-P
P3013-7-P
3 to 200 kPa
30 to 2,000 mbar
12 to 800 inH2O
     
P3014-1-P
P3014-2-P
P3014-3-P
P3014-4-P
P3014-5-P
0.2 to 10 bar
0.2 to 10 kgf/cm2
3 to 150 psi
20 to 1,000 kPA
0.02 to 1 MPa
P3015-1-P*
P3015-2-P*
P3015-3-P*
P3015-4-P*
P3015-5-P*
0.2 to 35 bar
0.2 to 35 kgf/cm2
3 to 500 psi
20 to 3,500 kPA
0.02 to 3.5 MPa
       
P3016-1-P
P3016-2-P
P3016-3-P
P3016-4-P
P3016-5-P
1 to 70 bar
1 to 70 kgf/cm2
10 to 1000 psi
100 to 7000 kPa
0.1 to 7 MPa
* -P indicates built-in pump optional
Vacuum Operated - Single PCU
Model Vacuum range
P3011-4-P*
P3011-6-P*
P3011-8-P*
P3011-9-P*
3 to 100 kPa
30 to 1,000 mbar
1 to 30 inHg
30 to 760 mmHg
* -P indicates built-in pump optional
Air Operated - Dual PCU   Vacuum/Pressure Models
Model Pressure range Vacuum range
P3022-4-P*
P3022-6-P*
P3022-7-P*
1.5 to 100 kPa
15 to 1,000 mbar
5 to 400 inH2O
3 to 100 kPa
30 to 1,000 mbar
1 to 30 inHg
   
P3023-4-P*
P3023-6-P*
P3023-7-P*
3 to 200 kPa
30 to 2,000 mbar
12 to 800 inH2O
3 to 100 kPa
30 to 1,000 mbar
1 to 30 inHg
   
P3025-1-P*
P3025-2-P*
P3025-3-P*
P3025-4-P*
P3025-5-P*
0.2 to 35 bar
0.2 to 35 kgf/cm
23 to 500 psi
20 to 3,500 kPa
0.02 to 3.5 MPa
30 to 1,000 mbar
30 to 760 mmHg
1 to 30 inHg
3 to 100 kPa
3 to 100 kPa
* -P indicates built-in pump optional
Liquid Lubricated Gas operated Models
Model Pressure range Model Pressure range
P3031-1
P3031-2
P3031-3
P3031-4
P3031-5
1 to 70 bar
1 to 70 kgf/cm
210 to 1,000 psi
100 to 7,000 kPa
0,1 to 7 MPa
P3032-1
P3032-2
P3032-3
P3032-4P3032-5
4 to 140 bar
4 to 140 kgf/cm
240 to 2,000 psi
400 to 14,000 kPa
0.4 to 14 MPa

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
Materials of Construction
Standard weight material
Weight density
Optional fractional weights
Weight density
Series 3 non-magnetic austenitic stainless steel
7.8 g/cm3
Solution heat treated aluminum
2.7 g/cm3
 
Material Piston Material Cylinder material Ceofficient of
Expansion
P3011, P3012, P3013
P3022, P3023, P3025(V) 
Ceramic  Martensitic steel  11 ppm/degC 
P3014, P3015, P3025 (P)
P3031, P3032 (P & V) 
Tungsten carbide  Martensitic steel  16.5 ppm/degC 
P3016  Tungsten carbide  Tungsten carbide  11 ppm/degC 
General
Test port adaptors 1/8, 1/4, 3/8 and 1/2 NPT or BSP
Instrument weight 24 lbs
Instrument size (W x D x H) 17.5 in x 12 in x 8,5 in
Mass set weight (typical) 65 lbs
Minimum Standard Weight
Increments
P3012, P3022 Pressure
P3013, P3023 Pressure
P3014, P3015, P3025 Pressure P3016, P3031, P3032
P3011, P3022, P3023
P3025 Vacuum
1 inH2O, (5 mbar)
2 inH2O, (10 mbar)
1 psi, (0.1 bar)
1 psi, (0.1 bar)
0.2 inHg, (10 mbar)
0.2 inHg, (10 mbar)
Optional Fractional weights
P3014, P3015, P3025 Pressure 0.1 psi (0.01 bar)  

Built-in Hand Pumps

Pressure mode: max pressure 300 psi (20 bar)

Vacuum mode: to 90% vacuum

 

Operating Fluid for Liquid Lubricated Models

55-655 mineral oil (standard)

Krytox, for oxygen-safe applications (optional)