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GE Panametrics Ultrasonic Transit-Time Liquid Flowmeters

AquaTrans AT868 - Liquid Flow Ultrasonic Transmitter

GE AquaTrans AT868 ultrasonic flowmeter combines state-of-the-art flow measurement capability with a rugged, low-cost transmitter package that can be installed right at the process measurement point. It is designed specifically for municipal applications such as water, wastewater and sewage. Setup and service are easily accomplished by using the AT868 transmitter’s internal keypad or by connecting the AT868 to a laptop PC and using GE Panametrics instrument interface software.

The PanaFlow Meter System offers the benefits of ultrasonic flow measurement, including no pressure drop, no moving parts to replace and extremely low maintenance, in a complete flowmeter system package that is preferred in the chemical, oil and gas, and other industries for permanent installation in rugged process environments.

Accuracy is typically one to two percent of reading with clamp-on transducers, and better than one percent with wetted transducers. Flow measurement range is 0.1 to 40 ft/s (0.03 to 12.2 m/s), for a turndown ratio of 400 to 1. Measurement is obstructionless, causing no pressure drop and is noncontaminating.
 
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DigitalFlow DF868 - Liquid Ultrasonic Flowmeter

GE's DF868 ultrasonic liquid flowmeter is a fixed-installation meter based on our award-winning TransPort PT868 portable ultrasonic liquid flowmeter. The DF868 is available with two built-in measuring modes. Using clamp-on flow transducers, the DF868 flowmeter measures flow rate through metal, plastic or even concrete-lined pipes without penetrating the pipe wall.

GE's Transit-Time mode, with advanced signal coding and correlation detection methods, provides drift-free flow measurements in ultraclean to dirty liquids. This mode handles 80 percent of multiphase liquids-including fluids with gas bubbles, liquid droplets and entrained solids-that previously required Doppler-type meters because conventional transit-time meters failed. Using advanced technology available only from GE Panametrics, an innovative TransFlection mode expands the DF868 flowmeter’s measuring capabilities to include applications previously handled only by Doppler meters, such as raw sewage, sludge, slurries and other extremely attenuating multiphase fluids. An optional dual-channel/dual-path model can be configured for a variety of uses including flow measurement in two different pipes, leak detection by measuring at two different locations on the same pipe and dual-path measurement at one location for maximum accuracy.
 
 

TransPort PT878 - Portable Liquid Ultrasonic Flowmeter

The TransPort PT878 flowmeter packs big features into a compact, light package. Its built-in datalogger can store more than 100,000 data points and up to 32 sets of site location parameters. You can add an optional built-in ultrasonic thickness gage. Temperature transducers are available for measuring energy flow rate. The rechargeable battery provides six to eight hours of continuous remote operation. The unit has a built-in infrared port to transfer datalog, site and other files to your PC. A rugged, sealed enclosure provides IP67 submersibility to protect the PT878 if it should accidentally fall into water.

The PT878 is one of the most powerful portable liquid flowmeters available. It measures flow from outside plastic, metal or concrete-lined pipes nonintrusively, so there’s no pressure drop, leaks or contamination. Patented correlation algorithms resolve transit-time signals like no other flowmeter and allow the PT878 to measure flow in ultrapure to extremely dirty liquids such as raw sewage and slurries. 
 

DigitalFlow XMT868i - Liquid Ultrasonic Transmitter

The XMT868i liquid flow transmitter combines state-of-the-art flow measurement capability with a low-cost transmitter package that measures only 8.2 by 6.6 in (20.1 by 16.8 cm), weighs only 10 lb (4.5 kg) and can be installed right at the process measurement point. The all-digital XMT868i has no moving parts and provides long-term, drift-free operation. An on-board microprocessor provides exclusive digital signal coding and correlation detection routines, automatic adjustment to changing fluid properties, dynamically configured operating software to simplify programming and built-in energy flow measurement.
 

BWT - Bundle Waveguide Technology System

System For Cryogenic LNG and other Extremely Low or High Temperature Ultrasonic Flowmeter Applications 
 

The Bundled Waveguide Transducer (BWT) System, a technological innovation in ultrasonic flow measurement, is the key for flow measurement in Liquified Natural Gas (LNG) in large pipes. The robust BWT System is the proven solution for cryogenic LNG applications, including the outlet of liquefaction trains and off-loading from ships to storage tanks. In addition to these low-temperature applications, the BWT System is the leading technology for measuring liquids in extreme conditions, including high-temperature, low-density and high-temperature, and highly viscous liquids. Although the installation is wetted, BWT transducers are obstructionless, producing no pressure drop or flashing in the system. The BWT System is compatible with most GE Sensing Panametrics liquid or gas ultrasonic flowmeters. Installations last virtually forever since there are no moving parts.

BWT transducers are available in a single-buffer design, or a double-buffer design for higher temperatures. The buffer is a collection of bundled cylindrical elements that provide a path for the ultrasonic signal to travel from the transducer to its wetted tip. This design provides two major advantages. First, keeping the piezoelectric element of the transducer away from the process keeps the element near ambient temperature, thus preventing any potential for temperature damage. Second, bundling the elements allows transmission of a highly collimated beam of ultrasound into the fluid.
 
 

PanaFlow Meter System - Integrated Ultrasonic Flowmeter

The GE PanaFlowTM Meter System wetted ultrasonic flowmeter product for liquids, gases or steam that uses standardized flowmeter body designs with options for one or two-path ultrasonic transducers, and local or remote flowmeter electronics. The PanaFlow Meter System is designed for applications such as natural gas, fuel gas, hydrocarbon liquids or gases, solvents, weak acids, water, and saturated or superheated steam.

The PanaFlow Meter System offers the benefits of ultrasonic flow measurement, including no pressure drop, no moving parts to replace and extremely low maintenance, in a complete flowmeter system package that is preferred in the chemical, oil and gas, and other industries for permanent installation in rugged process environments.