Cat Tracker LogoDaily Thermetrics Cat Tracker

Pinpoint Cat Cracking Problems


The Daily Thermetrics Cat Tracking System efficiently and effectively monitors the following Hydrotreating and Hydrocracking variables using Delta T between sensing points inside your reactor. In some installations, hundreds of measuring points have been installed horizontally or vertically throughout the reactor.

To date, hundreds of Daily Thermetrics Cat Tracker Systems with thousands of thermocouple points are in use throughout the world without a single failure to date.

  • Maldistribution
  • Channeling
  • Hot Spots
  • Quench Performance
  • Distiributor Tray Performance
  • WABT Number
Fast, Highly Accurate, Meaningful Data

While standard thermocouples operate within a 12 F˚ variation at 800F˚, Daily Thermetrics guarantees reactor readings at the same temperature between sensing points within 1.5 F˚. Our patent pending multipoint design conforms to the catalyst bed and covers a broader area with more points of measurement. The result, a fast, complete and accurate temperature profile throughout the critical points inside your cat cracker.

Unparalleled Installation Flexibility


Whether top or side loaded vessels or a vessel with small inlet nozzle, you will not find a catalyst tracking system with greater configuration flexibility. With the flexibility to bend and contour the thermocouple cables into most any shape or desired position data acquisition possibilities are limitless. That’s a big reason why Daily Cat Tracker System can incorporate into any catalyst process and is more economical and easier to install than other competitive tracking systems.

Top Loaded Vessels
Side Loading Vessels
Small Nozzles
Top Loaded Vessels
Side Loading Vessels
Small Nozzles

A 6" ANSI Class 2500 flange accomodates up to 15 1/2" cables with 9 sensing points on each.

Temperature probes can be installed straight with a simple support bar to simplify removal if catalyst changes are desired. Install as many as cables up to 150ft.(45m) in length with as many as 11 sensing points.

Our 1/2" (12.7m) cable can accomodate openings as small as 1" providing up to nine sensors in a 150ft. (45m) span.

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Durable Reliable Construction


Cat Tracker cables may bend to conform to most any shape. In fact, they can be bent in a one-inch radius without affecting the junction of internal integrity. However you will be hard pressed to break one. Each Cat Tracker conduit is encased in a .070 stainless (or specified alloy) sheath.

Thermo couples are swaged rather than drawn for:

  • More MgO between wires
  • Higher compaction ratios
  • Lower moisture content
  • Greater unit density

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Quality Controlled


The purity of at the junction Alumel and Chromel wires in a type K thermocouple determines its accuracy. Impurities introduced during the welding process also affect accuracy. To ensure uniform integrity throughout the system, all wire for each system is manufactured from the same lot. All welds are performed by ASME Section IX welders qualified in the 6G Position. After welding all welds are heat treated after making the junctions. During the manufacturing process all components are traceable and each step is fully documented.

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Total Project Cost Reduction


Although reliable, most catalyst tracking system alternatives lack accuracy or are cumbersome and complicated. Some popular cat tracking alternatives must be incorporated into the initial reactor design or require a tedious and expensive retrofit. Daily Thermetrics Cat Tracking Systems can be installed in a fraction of the time and when installed will provide superior data from its first day in operation. With the Daily Cat Tracker, there are no extensive and expensive consulting fees and significantly reduced down time during turnarounds.

In short, you can get a total project cost reduction. With the most accurate catalyst performance data, you can make critical process control decisions. With our manufacturing expertise, you can rely on a quality product with a proven track record. With our design, you can don’t have to build your process around our tracking system.

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For further information please visit the Daily Thermetrics



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