Fluke 6531-20M Electronic Deadweight Tester

Overview

The Fluke 6531-20M is an electronic deadweight tester for mid-range pressure calibration applications. It combines a high-performance electronic reference pressure monitor with manual pressure generation and control hardware, offering both precision digital measurement and hands-on pressure control in a portable unit.

Key Features

• Pressure range 2–20 MPa (300–3,000 psi)
• ±0.02% of reading accuracy (one-year calibration interval)
• Built-in priming system to eliminate air pockets
• Quick-mount test port design eliminates need for PTFE tape
• AutoTest, AutoRange, and onboard data capture with storage
• RS-232 interface for automated data collection
• Compatible with water and wide range of hydraulic fluids
• 300 cc (18 in³) reservoir capacity
• Overpressure alarm and ready/not-ready indicator
• Universal power supply 100–240 VAC, 50/60 Hz
• Optional battery/charger pack and foot switch available

Applications

• Mid-range pressure gauge calibration in laboratories
• Industrial pressure sensor verification
• Field calibrations and portable testing
• Pressure system validation and maintenance

Included Accessories

• Electronic deadweight tester unit
• AC/DC power supply
• Operating manual
• Vacuum liquid fill kit
• Test station quick-mount fitting
• NPT adapters: 1/8", 1/4", 3/8", 1/2"
• BSP adapters: 1/8", 1/4", 3/8", 1/2"
• Metric adapters: M20×1.5, M14×1.5