Panametrics liquid flow ultrasonic transmitter

PanaFlow™ XMT1000

The XMT1000 is a new, cost-effective ultrasonic flow transmitter that builds on Panametrics flow expertise and on years of reliable performance from its XMT868i predecessor. It offers state-of-the-art flow measurement capability in a rugged, locally-mounted or remote-mounted transmitter certified for use in hazardous areas. It brings a new level of performance with improved accuracy, configurable inputs
and outputs, and multiple ultrasonic transducer path options.

Liquid flow measurements for a wide range of applications

Hydrocarbon liquids
Crude oil
Lubricating oil
Diesel fuel oil
Solvents
Liquefied natural gas (LNG)
Water and wastewater
Distilled water
Hot/chilled water
Chemicals
Beverages
Non-intrusive, reliable, and accurate flow measurement
The PanaFlow XMT1000 comes from a long line of proven ultrasonic flow meters from Panametrics. It shares all the advantages of ultrasonic flow measurement, no moving parts to wear, no filters or strainers, no maintenance requirement, no pressure drop, and no drifting or required periodic calibration.

Its on-board digital signal processor (DSP) provides proprietary digital signal coding and correlation detection routines, automatic adjustment to changing fluid properties, and dynamically-configured operating software to simplify programming.

The XMT1000 offers:

Improved accuracy of 0.3% of reading
One, two or three-channel operation
Four configurable inputs/outputs for analog or digital communication
Suitability for a wide range of pipe sizes and materials
SIL configuration available
Improved programming capability

The XMT1000 introduces a magnetic six-button keypad to allow safe programming and diagnostics verification in your hazardous (classified) location. There is no need to open the case to use a PC to program, eliminating the cost and time associated with obtaining hot work permits, and there is no need for an additional handheld programmer. Just touch the glass of the XMT1000 with the magnetic wand to change any parameter setting.
If you prefer your PC interface, the PanaFlow XMT1000 comes standard with MODBUS RS485 connectivity, providing full access to the meter’s diagnostics and programming using PanaView Plus software. PanaView Plus also provides continuous logging capability of up to 10,000 points with 26 parameters logged per point.

Multi-channel, multi-path options reduce costs and improve performance
The XMT1000 may be configured as a one-channel, twochannel or three-channel meter for measurement flexibility. It also offers one, two or three ultrasonic transducer paths. A single path can provide cost effective flow measurement while multiple paths improve flow measurement accuracy and repeatability and add redundancy.

Automatically adjusts to changing fluid properties
Standard in all PanaFlow XMT1000 transmitters, our unique Automatic Tracking Window™ (ATW™) feature ensures accurate flow measurements even when fluid properties are unknown or changing. ATW dynamically sweeps the receiver window whenever the sound speed of the fluid changes. This powerful feature lets you measure flow when the fluid sound speed is unknown, or is changing.

PanaFlow XMT1000 flow transmitter uses transit-time flow measurement technique

The transit time flow measurement method utilizes two transducers to serve as both ultrasonic signal generators and receivers. When mounted on a pipe, they are in acoustic communication with each other. In operation, each transducer functions as a transmitter, generating a certain number of acoustic pulses, and then as a receiver for an identical number of pulses. The time interval between transmission and reception of the ultrasonic signals is measured in both directions. When the liquid in the pipe is not flowing, the transit time downstream equals the transittime upstream. When the liquid is flowing, the transit-time downstream is less than the transit-time upstream. The difference between the downstream and upstream transit times is proportional to the velocity of the flowing liquid, and its sign indicates the direction of flow.

Wetted transducers
The XMT1000 can be used with a variety of wetted systems including the PanaFlow system. The PanaFlow system offers a fully integrated flow meter solution that includes the XMT1000 electronics, flow cell, and transducers, which simplifies installation.
The PanaFlow XMT1000 can be used with other PanaFlow systems or may be configured as a custom meter solution with wetted transducers to meet specific application needs.