The Panametrics AquaTrans AT868 is an ultrasonic flow meter that combines advanced flow measurement capability with a low-cost transmitter package designed for installation right at the process measurement point . It is specifically engineered for water and wastewater applications in full pipes, handling fluids such as potable water, wastewater, sewage, and cooling water . The meter is suitable for acoustically conductive fluids, including most clean liquids and many liquids with entrained solids or gas bubbles .

The AT868 has no moving parts, ensuring minimal maintenance. Its onboard microprocessor uses patented Correlation Transit-Time™ technology for long-term, drift-free operation, automatically adjusting to changing fluid properties . Users have a choice of wetted or clamp-on transducers. Clamp-on transducers offer maximum convenience and low installation cost by mounting on the outside of the pipe, while wetted transducers provide maximum accuracy (better than 1% of reading) in most applications .

A dual-channel option allows the meter to measure flow in two pipes or average two paths on the same pipe for enhanced accuracy. The internal keypad enables simple field programming. The meter provides outputs for velocity, volumetric, and totalized flow. NIST calibration is available as an accessory .