WORLD OF INDUSTRIES 01/2018

Unique in the world of temperature
measuring technology
Authors: Giovanni Colucci, Marketing
Manager for Temperature, Endress+Hauser
Group, Germany, Philipp Garbers, Sector
Manager for Life Sciences, Endress+Hauser
Group, Germany
AUTOMATION
Smooth-running processes are essential for high
process reliability and system availability in countless
industries. In this article, we will provide an overview
of a new self-calibrating temperature sensor, which
will revolutionize the world of temperature
measurement technology. This innovative technology
will enable a rethink within the life sciences industry
which will reduce costs, modernize workflows and
significantly increase process reliability.
Measuring devices in the Life Sciences and Food & Beverage
industries often require pluri-annual calibrations. Removing
and reinstalling probes is a time-consuming and costly step, especially
in large plants. TrustSens is the world’s first sensor capable of
selfcalibration, making process disruption a thing of the past. Fully
traceable, cyclical and during the active process, reducing the risk of
undetected nonconformities to a minimum. Now, Endress+Hauser
is launching the iTherm TrustSens TM37x. Specially developed for
hygienic and aseptic applications, the thermometer enables seamless
and traceable calibration in the ongoing process. Full automation
makes very short calibration cycles without additional costs
possible, which reduces the risk of unknown measured errors to a
minimum (self-calibration before every batch). Plant downtimes
will also drop significantly. The result is more output with simultaneously
less effort, reduced costs and minimized risk thanks to
seamless process verification.
Physical principle of the sensor
At the heart of the temperature probe is a highly developed sensor
unit consisting of a primary Pt100 temperature sensor and a highly
accurate integrated reference. It uses a physical fixed point on the
basis of the Curie temperature and therefore serves to regularly
The iTherm TrustSens will
represent an essential
component of our concepts for
calibration optimization.
Simone Erath, Marketing Manager for
Services, Endress+Hauser, Germany
calibrate the primary sensor. That means every time the process
temperature drops below 118 °C / 239 °F (Curie point of reference),
the reference triggers the recalibration of the primary sensor.
Manual intervention is only necessary when the TrustSens sensor
reports a malfunction. This ensures that the constantly high measuring
accuracy of the temperature sensor is achieved throughout
its entire service life.
After self-calibrating, the iTherm TrustSens supplies audit-compliant
calibration data for complete documentation. A valid calibration
certificate can be prepared at any time with a simple mouse
click (for example with the Endress+Hauser FieldCare software).
22 WORLD OF INDUSTRIES 2018