Ashcroft, Inc. - 1305D and 1305DH Dead Weight Testers

The Ashcroft® 1305D and 1305DH portable deadweight testers are primary pressure standards that include a pressure source for generating precise calibration points. The unit’s built-in shuttle valve provides the means to control the rate of pressure increase, while precision adjustment is accomplished with an integral micro vernier displacement valve. An ideal, rugged field-ready primary standard, the 1305s are certified to yield consistent and accurate results.

Unit of Measure

Items	1305D 1305D Dead Weight Tester	1305DH 1305DH Dead Weight Tester
Description	N/A The Ashcroft® 1305D portable deadweight testers are primary pressure standards that include a pressure source for generating precise calibration points. The unit’s built-in shuttle valve provides the means to control the rate of pressure increase, while precision adjustment is accomplished with an integral micro vernier displacement valve. An ideal, rugged field-ready primary standard, the 1305s are certified to yield consistent and accurate results.	N/A The Ashcroft® 1305DH portable deadweight testers are primary pressure standards that include a pressure source for generating precise calibration points. The unit’s built-in shuttle valve provides the means to control the rate of pressure increase, while precision adjustment is accomplished with an integral micro vernier displacement valve. An ideal, rugged field-ready primary standard, the 1305s are certified to yield consistent and accurate results.
Brands	N/A Ashcroft®
Accuracy¹	N/A Within ± 0.1% of produced pressure
Operating Pressure	N/A 15 to 10,000 psi
Approximate Reservoir Volume	N/A 1.5 pt0.7 L
Pump Body Materials	N/A Aluminum Alloy
Piston and Cylinder Materials	N/A Stainless Steel
Operating Fluid²	N/A SAE 20 Automotive or Machine Oil Monsanto Skydrol 500B-4 or equal	N/A Phosphate or Glycol Base Hydraulic Fluids Monsanto Skydrol 500B-4 or equal
Weight Material	N/A ASTM AC41A Non-Magnetic Die Cast Zinc Alloy
Standard O-Ring Seals	N/A Buna-N®	N/A
Optional O-Ring Seals	N/A	N/A Ethylene Propylene
Key Features	N/A Accuracy ± 0.1% of reading NIST traceable primary pressure standard Includes complete set of weights for pressure generation Dual Range system includes Low and High pressure piston assemblies Portable, includes metal "tool box" for protection and portability Includes tools and adapters to accommodate most calibration requirements
Applications	N/A Industrial Market: Test and Measurement Calibration Laboratories
¹ Adjusted for standard gravity conditions; compensation for local gravity effects may be required. ² Not for use with water medium. For oxygen service applications, refer to models 1327DO or 1327CMO.