Ashcroft 1305D Deadweight Tester
The Ashcroft 1305D deadweight tester is a cost-effective and portable primary pressure standard, expertly crafted for the accurate calibration of industrial gauges and transducers. With an impressive accuracy of 0.1% of the reading, each unit is meticulously calibrated and certified to be traceable to the National Institute of Standards and Technology (NIST).
Key Features
- Dual-Range System: Includes both high and low pressure piston assemblies along with a complete set of weights marked with corresponding pressure values.
- High-Performance Pump: Equipped with a 2-speed lever action hydraulic pressure pump that can generate pressures up to 10,000 psi.
- Effortless Pressure Generation: A shuttle valve allows the operator to switch between two pressure generation rates, minimizing the effort needed for higher pressures.
- Precision Adjustment: Features a micro-adjust vernier displacement valve for fine-tuning pressure output to specific calibration points.
Operating Specifications
The standard Ashcroft 1305D pump is designed to work with 20 weight petroleum-based motor or machine oil. For applications that require glycol or phosphate ester-based hydraulic fluids, the pump can be fitted with specialized seals to accommodate these fluids.
Calibration and Certification
Each Ashcroft 1305D comes with a NIST traceable calibration certificate. An optional certificate of accuracy is also available, which includes detailed weight values for weights and pistons, piston diameter values, environmental data, and NIST Test Numbers. Additionally, the unit comes with numbered weights for easy identification.
Included Accessories
The Ashcroft 1305D deadweight tester is supplied with all necessary tools, adapters, and accessories to meet most calibration needs in both field and laboratory settings. All components are securely stored in a durable metal toolbox for enhanced protection and portability, while weight sets are kept in separate metal storage boxes.
Specifications
| Ashcroft 1305D Deadweight Tester Specifications | ||
|---|---|---|
| Pressure Ranges | Model 1305D-10 | 15-200 psig (low); 75-1000 psig (high) |
| Model 1305D-20 | 15-400 psig (low); 75-2000 psig (high) | |
| Model 1305D-30 | 15-600 psig (low); 75-3000 psig (high) | |
| Model 1305D-50 | 15-1000 psig (low); 75-5000 psig (high) | |
| Model 1305D-100 | 15-2000 psig (low); 75-10,000 psig (high) | |
| Accuracy | 0.1% of reading (all ranges) | |
| Operating Media | 1305D: SAE 20 weight automotive or machine oil | |
| 1305DH: Phosphate-based or glycol fluids | ||
| O-Ring Material | 1305D: Buna-N | |
| 1305DH: Ethylene Propylene | ||
| Materials | Piston and cylinder: stainless steel | |
| Weights: non-magnetic die cast zinc | ||
| Reservoir Volume | Approximately 1.5 pints (0.7 liter) | |
