CORRTEMP™ Ultrasonic Clamp-on Temperature Meter
Full service high accuracy temperature monitoring without cutting any pipes. From installation of hardware, electronic data acquisition, system commissioning, data collection and analysis, to the final measurement report, AMAG has you covered.
CORRTEMP™ Ultrasonic Clamp-on Temperature Meter measures the temperature of liquid in a pipe to within 0.5°C*.
How it works
AMAG’s unique CORRTEMP™ Ultrasonic Clamp-on non-intrusive temperature meters operate via cross correlation, by having two transducers installed perpendicularly to the pipe surface in diametrically opposing positions. These are used to measure the speed of sound in water. Once the pressure is known, the water temperature is calculated from the National Institute of Standards and Technology (NIST) water and steam properties tables. Accuracy of the temperature measurement and monitoring is within 0.5° C.
The average temperature is measured across the pipe cross section and is therefore not susceptible to errors from Resistance Temperature Detectors (RTD’s) or intrusive thermocouple devices caused by localized temperature gradients or thermal streaming. When used in conjunction with the CROSSFLOW™ system flow measurement accuracy is enhanced.
Cross correlation does not rely on the speed of sound, is not effected by temperature changes, or by harsh environments. We exclusively use cross correlation for all measurements, opposed to the transit time principle.

AMAG’s unique CORRTEMP™ Ultrasonic Clamp-on non-intrusive temperature meters operate via cross correlation, by having two transducers installed perpendicularly to the pipe surface in diametrically opposing positions. These are used to measure the speed of sound in water. Once the pressure is known, the water temperature is calculated from the National Institute of Standards and Technology (NIST) water and steam properties tables. Accuracy of the temperature measurement and monitoring is within 0.5° C.
The average temperature is measured across the pipe cross section and is therefore not susceptible to errors from Resistance Temperature Detectors (RTD’s) or intrusive thermocouple devices caused by localized temperature gradients or thermal streaming. When used in conjunction with the CROSSFLOW™ system flow measurement accuracy is enhanced.
Cross correlation does not rely on the speed of sound, is not effected by temperature changes, or by harsh environments. We exclusively use cross correlation for all measurements, opposed to the transit time principle.

Features & Benefits
Accurate
Measures the temperature of liquid in a pipe to within 0.5°C*
Easy deployment
Non-intrusive clamp-on design installs easily on the outside of the pipe, no costly engineering modifications or pressure testing needed, providing a corrosion and leak free experience
Wide range of liquids
Reliably measures the temperature of any liquid including, demineralized water, chemicals, freshwater, saltwater, and accurate for light or heavy water applications
Multiple Applications
Our experience and the flexibility of the technology allows us to address multiple applications from the common to the novel
Flexible
Suitable for a wide range of pipe sizes and materials
Continuous measurements
Continuous temperature measurement even with changing fluid properties (flow and pressure), with no need for manual intervention and no effect on measurement accuracy
Robust
Robust mounting system guarantees durable ultrasonic contact pressure on vibrating pipes, even after or during a seismic event
Minimal maintenance
Minimal maintenance required, providing long-term drift-free operation
Traceable
AMAG’s proprietary advanced signal processing and algorithms ensures highly accurate temperature measurements
Calibrated
Measurements are done with equipment calibrated in-house using NIST traceable equipment, and delivered with a certificate of calibration
High reliability
Rugged industrial design provides maximum reliability in high temperature and high radiation areas
Liquid/Gel free
Solid coupling removes the need for liquid or gel, providing reduced maintenance
Remote set-up
Optional software layer allows for communication with process computers as well as remote set-up and maintenance activities
Comprehensive
Measures and calculates the temperature, speed of sound in water, pipe wall thickness, and trends data
Easy repairs
Modular system design allows components to be easily isolated and repaired if ever needed
Multiple configurations
The unit can be operated in multiple configurations with electronics locally with the point of measurement, or in a remote location that provides easier access
Onsite installation
Onsite installation of mounting frames and ultrasonic transducers available while plant is on power
Training
Client training available
ASME PTC 19.1
Uncertainty analysis in accordance with ASME PTC 19.1
Customizable
Custom solutions available
*Operating temperature capabilities from 0° C to 650° C with no effect of temperature variation on meter accuracy