Data Sheet

The Ashcroft® 1305D and 1305DH deadweight testers provide a precise means for generating pressure with high accuracy that can be used as a primary calibration standard. 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 product that offers a rugged field ready primary standard, certified to yield consistent accurate results.

Key Features:

• 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

Specifications:

• Accuracy: ±0.1% of reading
• Operating pressure: 15 psi to 10,000 psi
• Piston and cylinder material: stainless steel
• O-ring material:
  Type 1305D: Buna-N
  Type 1305DH: Ethylene Propylene
• Fluid:
  Type 1305D: SAE 20 weight automotive or machine oil
  Type 1305DH: Phosphate ester or Glycol based hydraulic fluids

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Data Sheet

1327CM Pressure Gauge Comparator

The Ashcroft® 1327CM pressure gauge comparator is a portable pressure generation and test system. Serving as a secondary calibration source, its reliability and dependability are guaranteed. An ideal product when stringent calibration standards need to be provided. 

Key Features:

• 2-stage hydraulic pressure pump with integral shuttle valve
• Includes 6" model A4A precision analog gauge with temperature compensation and NIST traceable calibration chart
• Single carrying case; contains pressure generation unit and up to 4 gauges

 Specifications:

• Accuracy: ±0.1% of gauge span
• Pressure Ranges: 30, 100, 500, 1,000, 5,000 and 10,000 psi
• Bar, kPa, and mPa ranges are available
• Operating Fluids:
  1327CMS - SAE 20 automotive or machine oil
  1327CMH - Phosphate or glycol based hydraulic fluids
  1327CMO - Distilled water (with sodium molybdate and phosphoric acid additives recommended as corrosion inhibitors) 

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1327D Pressure Gauge Comparator

The Ashcroft® 1327D pressure gauge comparator offers the ideal combination of a reliable pressure source and a proven secondary standard. The 1327D Pressure Gauge Comparator is a portable pressure generation and test system. Its reliability and dependability are guaranteed.

Key Features:

• 2-stage hydraulic pressure pump with integral shuttle valve
• Includes 4 1/2" model 1082 test gauge (choice of 1 to 4 units) with temperature compensation and calibration chart
• Single carrying case; contains pressure generation unit and gauges

Specifications:

• Accuracy: ±0.25%
• Pressure Ranges: 0 to 10,000 psi
• Operating Fluids:
  1327D - SAE 20 automotive or machine oil
  1327DH - Phosphate ester or Glycol based hydraulic fluids
  1327DO - Distilled water (with sodium molybdate and phosphoric acid 
  additives recommended as corrosion inhibitors)

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