<< Ametek Deadweight Testers
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- Accuracy on PK Model's up to ±0.015% of Indicated
- Reading (Depending on Model)
- Pressure Range 4" H2O to 30PSIG
- Economical Self-Regulating Pressure Standard
- Exceptional performance and safety built-in floating ball
operation, self regulating, rugged ceramic measuring ball,
non-ceramic measuring ball, non contaminating test fluid, closed
cover operation, ball valves for inlet and outlet,
interchangeable weights
- NIST Traceable
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Ametek PKII series Shown
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The PK II 304WC-SS tester is a floating ball type, pneumatic
deadweight tester. This model is engineered to offer user-friendly
features, safe operation,
and an optimal performance in the field or in the lab.
Self-regulating pressure standard
The AMETEK model PKII Pneumatic Deadweight Tester is a primary standard that
produces a pressure by applying force (weight set) over area (the
ceramic ball and nozzle). The PK II tester is NIST traceable and
accurate to ±0.015% using stainless steel weights calibrated to
International standard gravity at 9.80665 m/s2 or local gravity as
specified. The PKII-304WC-SS tester is self-regulating with accuracy independent
of the operator. The tester utilizes a virtually frictionless ceramic
ball floating on a layer of air within a stainless steel cylinder.
The PKII-304WC-SS tester is self-regulating with accuracy independent of the
operator. The tester utilizes a virtually frictionless ceramic ball
floating on a layer of air within a stainless steel cylinder.
The PKII tester features a quick-leveling system for field or lab setup.
The unit may also be mounted on an optional tripod for more convenient
setup. The tester may be operated with the cover opened or closed.
Weights are located in foam-protective slots in the case. |
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Features |
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Functions |
Details |
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Floating ball |
While in operation, the PK II tester’s ball
and weights float freely, supported only by a thin film of
air which is virtually frictionless. This eliminates the
necessity to rotate the weights during testing and allows
the user to concentrate on the instrument calibration. |
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Self-Regulating |
The instrument’s built-in flow regulator
automatically adjusts the input air flow to maintain the
ball and weights in a float position. The regulator also
compensates for variations in pressure from the air supply.
These features eliminate the necessity of having to
continually adjust the supply during the test and provides
for an easy up and down scale calibration. |
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Overhung Weight
Carriers |
Another feature of the PK II deadweight
tester is the way that the weights are positioned on the
carrier. M&G utilizes an overhung weight carrier design.
This design employs a tube carrier that is positioned over
the column and onto the ceramic ball. The center of gravity
for the stack of weights is lowered, reducing side thrust
and friction; which lengthens the life of the ball/nozzle
and carrier. This also improves measurement accuracy. |
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Rugged Ceramic
Measuring Ball |
The floating ball is manufactured from aluminum oxide ceramic - a material with near-diamond hardness. The ball, unlike steel and carbide pistons, may be dropped on hard surfaces without damage. |
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Quick Setup
and Operation |
The setup for the PK II tester is
completed by simply connecting two tubes,- one for the
supply and one for the unit-under-test, leveling the PK II,
and adding the appropriate weights. Operation is fast and
efficient with no valves to adjust and no regulation needed
between set points. Pressure regulators are not required if
the air supply is within the tester’s operational
requirements. |
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Non-Contaminating
Test Fluid |
The instrument’s test fluid is Nitrogen
or instrument quality air complying with the ISA Standard
S7.3. This fluid is non-contaminating to virtually all
processes, thus eliminating the need to clean instruments
after calibration and before use. |
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Designed for field
or lab use |
The PK II tester is designed for
precision and is accurate enough for lab use. However, the
construction is rugged enough to allow for reliable field
operation as well. The instrument includes a built-in tripod
mount. A tripod may be ordered separately. |
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Closed Cover Operation |
The PK II tester is designed to operate
with the cover closed, thus eliminating the effects of wind
during field operation. |
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Ball Valves |
AMETEK floating ball testers, such as the
PK II tester, incorporate multi-position ball valves for
both the inlet and outlet valve connections. These ensure
trouble free operation that is both fast and efficient. |
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Easy Leveling |
AMETEK floating ball testers incorporate
a bulls-eye level for reference when preparing the unit for
use. The tester also employs a 3-leg leveling system which
is more convenient and is superior to a 4-leg system. |
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Small incremental weight sets |
Small incremental weight sets are
available to provide fractional output pressures. These are
available for the PK II deadweight tester in psi and inH2O. |
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Specifications |
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Functions |
Details |
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Type |
Pneumatic, ball type |
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Pressure Range |
200 kPa / 30 psi (model dependent) |
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Accuracy (12 months) |
to ±0.015% rdg |
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Engineering Increments |
psi, g/cm2, mbar, bar, kPa, inH2O, cmH2O,
mmHg |
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Repeatability |
±0.005% rdg |
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Temperature coefficient |
±0.00167% of rdg/°C (@23°C) |
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Minimum measurements |
1 psi, 10 g/cm2, 10 mbar, 1 kPa, 4 inH2O,
10 cmH2O, 10 mmHg |
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Increments (small) |
Small incremental weight sets available |
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Gravity |
9.80665 m/s2 (international standard) or
Local gravity (specify when ordering) |
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Water Column Temperature Ref |
20°C (ISA) (standard) or 60°F (AGA)
(optional) |
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Weight Sets |
Single (model dependent) |
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Pressure Source |
Nitrogen or instrument/shop air (ISA
quality standard 7.3) |
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Supply pressure |
Max |
6.9 bar / 100 psi |
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Min |
2.1 bar / 30 psi or 150% of desired
output pressure |
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Flow Rate |
28 slh at 1 kPa/1 scfh at 0,15 psi output
310 slh at 200 kPa/1 scfh at 20 psi output |
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Test Connections |
1/4" NPT |
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Weight Material |
Stainless steel and Aluminum (small
incremental weights) |
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Ball Material |
Ceramic |
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Comparison Chart |
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Model |
Certified range |
Increment |
W/C and
Ball Output |
Accuracy |
Gravity |
Data |
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PK2-20-SS |
1 to 20 psi |
1 psi |
1 psi |
±0.050% rdg (standard) |
Standard or local
gravity (specify) |
No |
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PS2-30-SS |
1 to 30 psi |
1 psi |
1 psi |
±0.050% rdg (standard) |
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PK2-2B.01-SS |
0.1
to 2 bar |
0.005 bar |
0.01 and
0.02 Bar |
±0.050% rdg (standard) |
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PK2-201N-SS |
1
to 200 kPa |
0.5
kPa |
1
and 2 kPa |
±0.050% rdg (standard) |
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PK2-304WC-SS |
4 to 304 in H2O |
1 in H2O |
4 in H2O |
±0.050% rdg (standard) |
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PK2-304WC-SS-1A |
±0.015% rdg (Optional) |
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PK2-304WC-SS-1B |
±0.025% rdg (Optional) |
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PK2-654WC-SS |
4 to 654 in H2O |
1 in H2O |
4 and 10
in H2O |
±0.050% rdg (standard) |
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PK2-654WC-SS-1A |
±0.015% rdg (Optional) |
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PK2-654WC-SS-1B |
±0.025% rdg (Optional) |
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PK2-854WC-SS |
4 to 854 in H2O |
1 in H2O |
4 and 10
in H2O |
±0.050% rdg (standard) |
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PK2-854WC-SS-1A |
±0.015% rdg (Optional) |
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PK2-854WC-SS-1B |
±0.025% rdg (Optional) |
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Ordering Information |
| Model |
Description |
Buy Online |
Price |
| PK220SS |
Ametek PK2-20-SS PKII Pneumatic Deadweight Tester, 1-20 PSIG, stainless steel weight set, +/-0.05% accuracy |
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Sale $5,660.10
(Reg. $5,958.00) |
| PS230SS |
Ametek PK2-30-SS PKII Pneumatic Deadweight Tester, 2-200 kPa, stainless steel weight set, +/-0.05% accuracy |
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Sale $6,136.05
(Reg. $6,459.00) |
| PK22B01SS |
Ametek PK2-2B.01-SS PKII Pneumatic Deadweight Tester, 0.01-2.0 bar, stainless steel weight set, +/-0.05% accuracy |
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Sale $7,652.25
(Reg. $8,055.00) |
| PK2201NSS |
Ametek PK2-201N-SS PKII Pneumatic Deadweight Tester, 2-200 kPa, stainless steel weight set,+/-0.05% accuracy |
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Sale $7,652.25
(Reg. $8,055.00) |
| PK2304WCSS |
Ametek PK2-304-WC-SS PKII Pneumatic Deadweight Tester, 1-304"H2O, stainless steel weight set, +/-0.05% accuracy |
Discontinued |
| PK2304WCSS1A |
Ametek PK2-304WC-SS-1A PKII Pneumatic Deadweight Tester, 1-304"H2O, stainless steel weight set, +/-0.015% accuracy |
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Sale $6,876.10
(Reg. $7,238.00) |
| PK2304WCSS1B |
Ametek PK2-304WC-SS-1B PKII Pneumatic Deadweight Tester, 4-300"H2O, stainless steel weight set, +/-0.025% accuracy |
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Sale $6,224.40
(Reg. $6,552.00) |
| PK2654WCSS |
Ametek PK2-654WC-SS PKII Pneumatic Deadweight Tester, 10-650"H2O, stainless steel weight set, +/-0.05% accuracy |
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Sale $8,257.40
(Reg. $8,692.00) |
| PK2654WCSS1A |
Ametek PK2-654WC-SS-1A PKII Pneumatic Deadweight Tester, 4-650"H2O, stainless steel weight set, +/-0.015% accuracy |
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Sale $8,001.85
(Reg. $8,423.00) |
| PK2654WCSS1B |
Ametek PK2-654WC-SS-1B PKII Pneumatic Deadweight Tester, 4-300"H2O, stainless steel weight set, +/-0.025% accuracy |
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Sale $7,368.20
(Reg. $7,756.00) |
| PK2854WCSS |
Ametek PK2-854WC-SS PKII Pneumatic Deadweight Tester, 4-850"H2O, stainless steel weight set, +/-0.05% accuracy |
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Sale $7,623.75
(Reg. $8,025.00) |
| PK2854WCSS1A |
Ametek PK2-854WC-SS-1A PKII Pneumatic Deadweight Tester, 4-850"H2O, stainless steel weight set, +/-0.15% accuracy |
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Sale $8,017.05
(Reg. $0.00) |
| PK2854WCSS1B |
Ametek PK2-854WC-SS-1B PKII Pneumatic Deadweight Tester, 4-850"H2O, stainless steel weight set, +/-0.025% accuracy |
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Sale $7,402.40
(Reg. $0.00) |
| Included Accessories |
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- 1 - Stainless Steel Weights
- 1 - Certificate of Calibration
- 1 - Case
- 1 - Instruction Manual
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Included |
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