Digital Residual Pressure Manometer

Digital Residual Pressure Manometer is widely used for the asphalt Rice Test and is a safe, accurate, and environmentally-friendly alternative for measuring vacuum levels for all lab applications. These models meet the requirements of ASTM D2041 and AASHTO T 209 to measure specific gravity and density of asphalt mixtures, often called the Rice Test.

The gauge is mercury-free and uses an absolute pressure transducer to give an instant digital display of applied vacuum from 0 to 1,000mm Hg with 0.1mm resolution. Digital readings are provided on an easy-to-read backlit display. Accuracy is ±0.5% of full scale. A 0.25in hose barb connection with a needle valve is supplied for vacuum tubing. Powered by a 9V battery or AC adapter, both included. The adapter for MA-170F and MA-170FC is 230V/50Hz. Automatic shut-off saves power in battery mode.

Models with certification undergo multi-point calibration at 25, 30, and 35mm Hg on NIST traceable equipment, and is supplied with a NIST Calibration Certificate to meet AASHTO T209 requirements.

Features:

• The optimal method for fast, accurate vacuum pressure measurements
• Easy to read digital display
• A mercury-free alternative for safe asphalt Rice testing
• NIST Traceable multi-point certification available

Included Items:

• Digital Residual Pressure Manometer, 115V/60Hz or 230V/50Hz (with or without NIST Certification)
• Hose barb connection with needle valve
• AC adapter
• 9V battery

Accessories:

• MAA-25 NIST Calibration Certification for NIST calibration or recalibration using a multi-point calibration at 25, 30, and 35mm Hg NIST traceable equipment

Related blogs:

• Characteristics of Aggregates: Shape, Size & Specific Gravity
• Specific Gravity of Soil - Understanding ASTM & AASHTO Methods