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Vitality indicator for pyrometers

Smart self-monitoring for maximum operational reliability

Electronic components in industrial measuring devices are subject to natural aging effects due to physical and chemical processes. Their influence over time depends heavily on the operating temperature and temperature fluctuations. Under harsh industrial conditions with high and fluctuating temperatures, this can impair the measuring accuracy and long-term stability of precision devices.

To minimize this risk, KELLER ITS has equipped the new generation of the CellaTemp® PK series with a smart innovation: the vitality indicator.

Vitality Indicator

The vitality indicator permanently displays the aging status of the pyrometer.


Inspired by SMART technology

This function is reminiscent of the well-known SMART technology (Self-Monitoring, Analysis and Reporting Technology) used in hard disks. Sensors and firmware continuously monitor operating parameters in order to detect wear or defects at an early stage and warn of a possible failure.

This self-monitoring technology is also integrated into the new CellaTemp® PK pyrometers. The vitality indicator continuously collects relevant operating data and analyzes the device status depending on temperature and operating time. The current status can be read directly on the pyrometer at any time or evaluated from the system control via the digital IO-Link interface. The pyrometer independently signals the optimal time for inspection or calibration – between 2 and 25 years, depending on the operating conditions.

CellaTemp PK with IO-Link interface

CellaTemp® PK pyrometer with IO-Link interface for transmitting smart diagnostic data to the plant control system.


Benefits for users

  • Greater process reliability: reliable temperature measurement without unexpected failures.
  • Less downtime: maintenance only when really necessary.
  • Greater cost-effectiveness: freely configurable service intervals and integration into control systems and cloud services.
  • Longer service life: optimized use of pyrometers for maximum availability.

Wide range of applications

The CellaTemp® PK series comprises 52 pyrometer types and covers a temperature range from –30 to 2,500 °C. This provides solutions for almost all applications of optical temperature measurement – from the food and construction industries to inductive heat treatment, the steel and glass industries, combustion plants, and the semiconductor industry.

Conclusion: Innovation in infrared temperature measurement

With its vitality indicator, KELLER ITS is setting new standards in industrial infrared temperature measurement. Users benefit from maximum reliability, availability, and efficiency throughout the entire service life of their pyrometers.

Discover the advantages of the CellaTemp® PK series for your industrial temperature measurement application now!


PK pyrometer series
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