Infrared Temperature Measurement | Combustion & Environmental Monitoring


AMETEK Land have supplied the Cement Industry and OEM's throughout the world with temperature measuring equipment for over 60 years. All our products are designed to the highest standards of quality and reliability to ensure accurate measurements under plant operating conditions.

The schematic diagram below illustrates where temperature measurement can improve efficiency and process control. The measurement reference points and and associated product recommendations are based on our extensive experience in the industry. AMETEK Land's infrared thermometry/process thermal imaging  know-how can really benefit you. If your specific area of concern is not covered here, our engineers will be pleased to discuss your requirements with you.


Cement Applications - Product Selection
 Product Selection LSP_hd 60 NIR Borescope SPOT R100 Ratio HotSpot IR Model 4200+ Lancom 4
1. Rotary Kiln - Shell Temperature          
2. Rotary Kiln-  Product Temperature          
3.Rotary Kiln - Burning Zone Temperature        
4. Grate Cooler - Hot Spot detection          
5. Bucket Clinker Conveyor - Hot Spot Detection          
6. Dust Emissions Monitoring / Flue Gas CO2 level checking        


1. Kiln Shell Temperature

Detecting both hot and cold spots on a Cement Rotary Kiln

The early detection of hot or cold spots is vital to avoid costly maintenance or an unplanned shutdown. Continuous monitoring of the kiln shell along its length day, and night, will provide the earliest possible indication of potential refractory  problems.


The LSP_hd 60 thermal scanner is the ideal solution with high resolution optics, 1000 sample points per scan line at upto 150 Hz and an 80˜ scan angle. Linking directly by Ethernet to a computer running the dedicated WCA softwre, high quality thermal scans help determine areas for concern in the refractory lining.


Our recommended product for this application is the LSP_hd 60 series thermal scanner



2. Rotary Kiln Product Temperature


Sighting tubes of different lengths are installed in various kiln positions - the radiation thermometer accurately measures the temperature at the end of the tube once very kiln rotation. Depending on the thermometer location either the solids (for product quality) or the gases (for kiln efficiency) within the kiln can be measured.

The SPOT R100 thermometer is our recommend product here, the ratio device compensating for the large amount of dust present inside the kiln.It can continue to make measurements in conditions that have over 95% obscuration

3. Rotary Kiln Burning Zone Temperature

There are two measurement options for the Burning Zone

NIR_Borescope with Auto -Retraction systemA NIR Borescope (photo) can provide a wide angle thermal overview of the burning zone and clearly define a blocked burner, plus deteriorating refractory linings, plus a clearly defined view of all temperatures inside the kiln.

Clear thermal views inside the kiln

Measurement of the temperature in the kiln burning zone is vital for maintaining both product quality and kiln efficiency.



A SPOT R100 ratio thermometer is used to overcome the inherent problems of up to 95% dust obscuration.etc. This system can be applied equally to both wet and dry processes.

4. HotSpotIR detection in the Air Cooler section

grate coolerTo safeguard against either fire or blocked air ducts a HotSpot IR is installed looking down on the grate cooler to ensure the clinker is cooling at the correct rate, and can indicate a blocked air blower.

The HotSpotIR head is extremely compactHotSpot IR and has a minimized depth and base“footprint” for installation in restricted spaces. A durable, flush mounted sapphire windowprovides reliable protection for the system optics.A built-in laser targeting system aids alignment on to the target.


The HotSpotIR is small enough to be positioned over the hot material as it cools by blown air. It will measure the entire width of grate cooler and alarm if any areas are above a safe temperature. Alarms can be used to trigger water sprays or suppression systems. This can prevent hot inclusions from being loaded, transported and causing fires later in the plant.

Used in a closed loop control system, it monitors the temperature of the clinker before it reaches the conveyor. This system sets the cooling levels and improves operating efficiency.