The DigitalFlow™ GM868 general-purpose flowmeter measures gas flow in pipes or ducts ranging from ˝ in (1.27 cm) tubing to flue stacks greater than 25 ft (7.6 m) in diameter with appropriate transducers. Innovative configurations for installation of its ultrasonic transducers meet pipe or duct size and other application-oriented requirements. This obstructionless meter has very wide rangeability, causes no pressure drop, and requires no regular maintenance. Analogue and digital outputs in velocity and actual volumetric flow rate are standard.


The XGM868 gas flow transmitter is a low-cost, transmitter-based version of the GM868 general-purpose gas flowmeter. Like the GM868 flowmeter, the XGM868 transmitter uses the ultrasonic transit-time technique for measuring gas flow. It measures flow in virtually every gas in any pipe or duct size from 1 to 120 in (2.5 cm to 3 m) and larger. The transmitter is weatherproof and approved for use in hazardous areas. The wetted transducer designs offer low pressure drop, low maintenance, and accurate measurement over a wide range of flows and compositions.