1305D & 1305DH Dead Weight Tester – Ashcroft
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.
Key Features:
- 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:
Industrial Market:
- Test and Measurement
- Calibration Laboratories
Specifications
Data Sheets & Instruction Manuals
Drawings & Product/Technical Information
Accuracy
Within ±0.1% of produced pressure (adjusted for standard gravity conditions; compensation for local gravity effects may be required)
Operating Pressure
15 psi to 10,000 psi
Reservoir Volume
Approximately 1.5 pints (0.7 liter)
Pump Body Materials
Aluminum alloy
Piston & Cylinder Materials
Stainless Steel
Operating Fluid
1305D – SAE 20 automotive or machine oil
1305DH – Phosphate or glycol base hydraulic fluids
Monsanto Skydrol 500B-4 or equal Note: Not for use with water medium. For oxygen service applications, refer to models 1327DO or 1327CMO
Weight Material
ASTM AC41A
Non-magnetic die cast zinc alloy
O-Ring Seals
Standard (1305D) – Buna-N
Optional (1305DH) – Ethylene Propylene