| << Ametek Deadweight Testers |
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- 10 to 1000 PSI
- Accuracy: 0.025% of Indicated Pressure
- Minimum 1 PSI Increments
- Primary Pressure Standard, NIST Traceable
- Calibrated to International Standard Gravity
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Ametek HK-1000 Shown
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The AMETEK HK-1000 Pneumatic Deadweight Tester is a primary standard
that produces a pressure by applying force (weight set) over area (the
ceramic ball and nozzle). The HK 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 HK-1000
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 HK tester features a
quick-leveling system for lab setup. The unit may also be mounted on an
optional tripod for more convenient setup. Weights are located in
foam-protective slots in the case. |
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| Features |
| Functions |
Details |
| Floating ball |
While in operation, the 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. |
| 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. |
| Overhung Weight Carriers |
Another feature of the HK
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 car-rier. This also improves
measurement accuracy. |
| 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. |
| Quick Setup and Operation |
The setup for the HK tester
is completed by simply connecting two tubes,- one for the
supply and one for the unit-under-test, leveling the HK, 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. |
| 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. |
| Designed for field or lab use |
The HK 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. |
| 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. |
| 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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| Specifications |
| Functions |
Details |
| Type |
Pneumatic, ball type |
| Pressure Range |
to 10,000 kPa / 1,500 psi (model dependent) |
| Accuracy (12 months) |
to ±0.025% rdg |
| Engineering Units |
psi, g/cm2, mbar, bar, kPa, inH2O, cmH2O, mmHg |
| Repeatability |
±0.005% rdg |
| Temperature coefficient |
±0.00167% of rdg/°C (@23°C) |
| Increments (low-min) |
1 psi, 0.1 kg/cm2,0.1 bar, 5 kPa, 2 inHg |
| Gravity |
9.80665 m/s2 (international standard) or
Local gravity (specify when ordering) |
| Weight Sets |
Single (as ordered) |
| Pressure Source |
Nitrogen or instrument/shop air (ISA
quality standard 7.3) |
| 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 |
| Test Connections |
7/16-20 37° conical 1/4” OD |
| Weight Material |
Stainless steel |
| Ball Material |
Ceramic |
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| Specifications |
| Model |
Certified range |
Increment |
W/C and Ball Output |
Accuracy |
Gravity |
Data |
| HK-1000 |
10 to 1000 psi |
1 psi |
10 psi |
±0.05% rdg (standard) |
Standard or local
gravity (specify) |
No |
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Ordering Information |
| Model |
Description |
Buy Online |
Price |
| HK1000 |
Ametek HK-1000 High Pressure Pneumatic Deadweight Tester,10-1000 PSI, 0.025% |
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Sale $13,948.85
(Reg. $14,683.00) |
| Included Accessories |
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- 1 - Weight Set with Case
- 1 - Certificate of Calibration
- 1 - Case
- 1 - Instruction Manual
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Included |
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