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.
| 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)