Panametrics DF868 Dual-Channel Flowmeter

Overview

The Panametrics DF868 DigitalFlow is a comprehensive ultrasonic liquid flowmeter combining non-intrusive clamp-on measurement with advanced digital signal processing. Its Correlation Transit-Time technology delivers drift-free measurements in ultraclean and difficult "dirty" liquids containing gas bubbles and entrained solids. The optional dual-channel configuration allows simultaneous measurement of flow in two separate pipes or two transducer sets on a single pipe to maximize measurement accuracy.

Key Features

• Pipe size range: ½ to 200 inches (1.27 cm to 5.1 m)
• Dual-channel/dual-path configuration for flexible deployment
• Non-intrusive clamp-on transducers available (no pipe penetration)
• Wetted transducers option for maximum accuracy (typically better than 1%)
• Measurement range: 0.1 to 40 ft/s (0.03 to 12.2 m/s) with 400:1 turndown ratio
• Built-in 43,000-point datalogger with real-time recording
• Dual independent programmable graphic LCDs with flexible display formats
• Automatic tracking window adapts to changing fluid conditions
• TransFlection mode for multiphase fluid applications
• Integrated energy measurement for heating and cooling systems (-20°C to 210°C)
• Wide I/O options: up to 12 isolated 4–20 mA outputs, up to 6 alarm relays, up to 12 frequency/totalizer outputs
• All-digital processing with no moving parts or pressure drop

Applications

• Fixed-installation flow measurement in industrial processes
• Energy billing and monitoring in district heating and cooling
• Flow measurement in pipes with challenging geometry or multiphase conditions
• Hazardous (classified) location applications
• Simultaneous dual-pipe measurement for cost reduction

Included Accessories

• Universal clamping fixture with ruled slide tracks for transducer spacing
• Small-pipe clamping fixture with miniaturized transducers (0.5 to 2 inch lines)
• Optional chain, wire rope, Velcro strap, and magnetic mounting fixtures