K25500 Soot Levels in Diesel Engine Oils, Laboratory Meter


Test Method
Measures the amount of suspended carbon (soot) in diesel engine lubricating oils.



K25500 Soot Levels in Diesel Engine Oils, Laboratory Meter
The Soot Meter is a direct reading infrared analyzer for the rapid measurement of soot content in diesel engine oils. It measures the amount of suspended soot in diesel engine lubricating oils from infrared absorption at a fixed wavelength. Measurement results are comparable to widely used and accepted TGA and FTIR analysis techniques. Samples may be applied from the end of a dip-stick or from a simple eye dropper directly onto the scratch-resistant cubic zirconia measurement surface which is also impervious to acids. After testing, the surface is cleaned by simply wiping it with a cloth or paper towel. There are no cells to clean and no solvents required for the cleaning process. The unit is lightweight, contains no moving parts and uses a 12V power supply making the Soot Meter a versatile unit for the testing laboratory as well as in the field. Includes dust cover, power supply and set of four reference oils.

Also available are a portable meter for soot analysis (K25525) and analyzers for measuring total oil and grease (TOG) and total petroleum hydrocarbons (TPH) in water and soil samples. Please contact our Customer Service Department for more details.


Measurement Range: 0 to 12% soot

Operating Temperature Range: 40 to 110F (4 to 45C)

Output Resolution: 0.1% or 0.01% soot (user selectable)

Non-Volatile Memory: For calibration constants and configuration data

User Calibration: Up to 20 point curve fitting calibration, plus zero

Power Requirements: 12V DC, +10% maximum, 2A

Included Accessories
AC/DC Converter
Dust Cover
Set of four reference oils

Dimensions lxwxh,in.(cm)
6.5x6.5x5 (16.5x16.5x12.7)
Net Weight: 4.5lbs (2kg)

Shipping Information
Shipping Weight: 9 lbs (4.1kg)
Dimensions: 1 Cu. ft.

Ordering Information



Product Description


Soot Meter




Product Description


External 12V Battery Pack
Includes charger and cigarette lighter adapter cable to provide up to 16 hours of continuous operation


Carrying Case