GE Panametrics DigitalFlow ISX878

The GE Panametrics DigitalFlow ISX878 ultrasonic flow transmitter combines the simplicity of a loop-powered flow meter installation with proven, advanced clamp-on ultrasonic flow transmitter technology. The DigitalFlow ISX878 provides customers with an economical solution for flow measurement in pipes up to 16 in (400 mm).

Intrinsically Safe

The DigitalFlow ISX878 ultrasonic flow transmitter from GE Panametrics provides a low cost solution for non-intrusive liquid flow measurement in your hazardous locations. The DigitalFlow ISX878 is able to achieve an intrinsically safe rating by significantly reducing the amount of energy required to drive the ultrasonic transducers. Reducing the drive voltage by a factor of 10 could only be made possible through advancements in the ultrasonic transducers. The new ISXDR transducers are considerably more efficient than our previous piezoelectric models that led the market over the past two decades.

Lower Cost of Ownership

Intrinsic safety reduces installation costs by eliminating the need for heavy explosion-proof junction boxes and conduit. The reduced power usage also allows the DigitalFlow ISX878 ultrasonic flow transmitter to be a loop-powered device, which saves on installation costs. This becomes more important where hazardous locations have significantly higher costs for running power cables for an AC or DC unit. The GE Panametrics DigitalFlow ISX878 uses an available twisted pair of instrument cables, fed through a safety barrier, to power the unit. Since the meter clamps onto the outside of the pipe, there is no need to shut down a line to install the meter or to service it. These Panametrics ultrasonic flow transmitters feature robust electronics and transducers which have no moving parts to break or wear down, so annual maintenance can be significantly reduced, if not entirely eliminated.

Two-Path Model

An optional second channel provides the the GE Panametrics DigitalFlow ISX878 ultrasonic flow transmitter with the capability to obtain two-path averaging of the flow measurement, at a single point for increased accuracy.

Uses the Transit-Time Flow Measurement Technique

The Correlation Transit-Time™ technique uses a pair of transducers with each transducer sending and receiving coded ultrasonic signals through the fluid. When the fluid is flowing, signal transit-time in the downstream direction is shorter than in the upstream direction; the difference between these transit-times is proportional to the flow velocity. The GE Panametrics DigitalFlow ISX878 ultrasonic flow transmitter measures the time difference and uses programmed pipe parameters to determine flow rate and direction.

Applications for the GE Panametrics DigitalFlow ISX878 Ultrasonic Flow Transmitter

The DigitalFlow ISX878 from GE Panametrics is an intrinsically safe, loop-powered, full-featured clamp-on ultrasonic flow transmitter system for flow measurement of:

• Hydrocarbon liquids
• Petroleum products
• Lubricating oils
• Diesel fuel oil
• Chemicals
• Other liquids