JM Test Systems carries a complete line of deadweight tester options including pneumatic and hydraulic. We offer Ametek deadweight tester units along with Ashcroft, Chandler, Crystal Engineering, Fluke Calibration, and more.
Your one stop shop for your deadweight tester calibration, repair, sales, and rental needs.
JM has a large range of options available. Our experts can help you determine which deadweight tester is right for your application. Beyond your initial equipment purchase, JM can provide deadweight tester calibration. We can also perform a complete refurbishment or even a quick repair on your broken deadweight tester.
Since 1982 JM Test Systems has worked to provide the highest quality and the most expedient service that we can. Our nationwide delivery and locations in Louisiana, Texas, and Illinois will work to deliver or return your equipment as quick as possible.
On this page you will find an overview of the most popular deadweight tester units. You can use the links on the available models to submit your quote request to our inside sales team. If you already have a unit which needs to be repaired, upgraded, or calibrated you can tell us about it using the form at the bottom of this page.
Accurate to 0.015% of Reading
|The AMETEK PK II 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 980.665cm/sec2. The PK II 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 PK II tester features a cast-metal base with a quick leveling system for field or lab setup. The unit may also be mounted to 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. The PK II testers are optionally available with an accuracy of +0.015%. Calibration to your local gravity is available for all stainless steel models. Please provide your gravity when ordering. View the Ametek PK II Pneumatic Operating Instructions.|
|The AMETEK HK Pneumatic Deadweight Tester is a primary standard used to calibrate pressure and differential pressure gauges, transmitters, transducers, recorders and controllers, and that can provide a reference pressure in process control applications.|
The HK tester is self-regulating with accuracy independent of the operator. These testers feature superior accuracy and repeatability and a pre-fill feature that minimizes the filling of large static output volumes before the test.The HK tester is available in these ranges from 10 to 1500 PSIG. The range options are 10 to 300, 500, 700, 1000, or 1500 PSIG
The HK tester is very easy to setup and use. The unit’s precision stainless steel weights are calibrated for international specific gravity of 980.665cm/sec2.
|The Ametek HL Deadweight Tester extremely compact, self-contained portable tester is designed for pressure ranges from 10-200 psi (1-15 bar) up to 50-3,000 psi (5-225 bar). Accurate to ±0.05% of reading, the unit features an easy-to-use screw pump with ratcheting handle and re-entrant type piston/cylinder assembly. This helps maintain accuracy as the test pressure increases. Weights and piston assemblies are interchangeable. The unit’s AAA tester oil may be easily inspected through the transparent reservoir. Compact design in only 9 x 9 x 10 in (23 x 23 x 24.5 cm). A tripod option is available for field applications.|
|The Ametek Type T Deadweight Tester is a high accuracy deadweight tester and ideal for laboratory or field use. The type T tester uses distilled water or fluid compatible with 300 series stainless steel and MONEL (including AAA tester oil). For applications up to 15,000 psi (1,000 bar). An optional dual piston lets you interchange piston/cylinder assemblies to extend the pressure measurement range using the same weight set. A kit is available for converting to a dual column tester.|
|The Ametek RK Deadweight Tester is accurate up to +/- 0.015% of indicated reading. The RK tester is ideal for pressure ranges from 1 to 300 PSI (0.01 to 20 bar). It provides for incremental pressures down to only 0.1 PSI (1 mbar) and is available in seven different engineering units: h10, psi, kPa, cmh10, inHg, bar, and kg/cm2. The RK tester features a cast metal base with quick levelling for field or laboratory use and also operates with cover closed.|
|The Chandler 2-1 Deadweight Tester is NIST traceable, accurate to 0.05% of indicated pressure and gauges gas or liquid pressure measurements.The unit is reliable and composed of hardened stainless steel pistons and corrosion resistant materials with a Screw Pump that allows for fine pressure adjustments. The Chandler 2-1 Deadweight Tester is 22in x 8 in x 14 in and weighs 90 lbs. It is available in Dual Range Option with a maximum pressure of 5000 PSI and a minimum pressure of 50 PSI.|
|The Chandler 23-1 Deadweight Tester is NIST traceable, accurate to 0.05% of indicated pressure and guages gas or liquid pressure measurements. The unit is reliable and composed of hardened stainless steel pistons and corrosion resistant materials with a Screw Pump that allows for fine pressure adjustments. The Chandler 23-1 Deadweight Tester is 19 in x 6 in x 13 in and weighs 85 lbs with a maximum pressure of 2000 PSI and a minimum pressure of 5 PSI.|
|The Chandler 5-1 Deadweight Tester is NIST traceable, accurate to 0.05% of indicated pressure and guages gas or liquid pressure measurements. The unit is reliable and composed of hardened stainless steel pistons and corrosion resistant materials with a Screw Pump that allows for fine pressure adjustments. The Chandler 5-1 Deadweight Tester is brass with an interval of 1 PSI and it guages a maximum pressure of 10000 PSI and a minimum pressure of 50 PSI.|
|The Chandler 55-1 Deadweight Tester is NIST traceable, accurate to 0.05% of indicated pressure and guages gas or liquid pressure measurements. The unit is reliable and composed of hardened stainless steel pistons and corrosion resistant materials with a Screw Pump that allows for fine pressure adjustments. The Chandler 55-1 Deadweight Tester is 22in x 14 in x 18 in and weighs 250 lbs. It is available in Dual Range Option with a maximum pressure of 15000 PSI and a minimum pressure of 50 PSI.|
|The Ashcroft 1305 Deadweight Tester has an accuracy at 0.1% of reading. It has an operating pressure of 15 psi to 10,000 psi (100 kPa to 70,000 kPa). The Ashcroft 1305 has a stainless steel piston and cylinder material, a non-magnetic die cast zinc weight material, and approximately 1.5 pints (0.7 liter) in reservoir volume. A Special ‘CD-5’ Certification package is available (see Price Sheet TE/PS-1).|
Buy or Rent Deadweight Testers
Deadweight Tester Calibration and Repair
JM offers full reconditioning on any deadweight tester, upgrade options on older units, and repair quotes on broken units. JM’s technicians can assist you with most makes and models.
Deadweight Tester Calibration
Increase deadweight accuracy
JM technician’s perform all tester deadweight calibrations in our certified labs across the country. In addition to our calibration service we can also create custom machined weights. Units can be calibrated to your local gravity for maximum accuracy.
Custom weights are sold as a single unit or in sets.
Why should custom machined weights be calibrated to your local gravity? Download the Gas Cost Analysis for PK Calibration spreadsheet to see the difference.
Refurbished Deadweight Testers
JM Test also has a refurbished deadweight tester inventory. We stock units that have been completely refurbished, calibrated, and inspected by our highly trained technicians. These units can help you with significant savings over a new purchase.
Our refurbished inventory changes often but generally includes models like the Ametek PK II, Type R, Type T, and the Ashcroft 1305. Contact us to learn more about the current available options.
Dead Weight Tester Repair / Upgrade
Like new again
JM can repair broken units and upgrade your older units. PK Tester Upgrades: Why Pay New? You can have just as good as new, with an upgraded “original style” PK Tester. With an upgrade you get a new hard shell case, 3 way vent valve, external connectors for easy hook-up, and a rubber weight insert. The lid can also be closed during operation. View the upgraded PK testers datasheet.
Ranarex Gravitometers: Rental, calibration, and repair services are available from JM Test Systems.
Get a Deadweight Tester Price Quote
Use this form to submit your deadweight tester for a quick price quote on a new purchase, rental, calibration, repair, or upgrade.