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Koehler™ Instrument Koehler™ Ramsbottom Carbon Residue Apparatus

Determines the “carbon residue” left after evaporation and pyrolysis of a sample oil in the Ramsbottom furnace, providing an indication of the deposit forming tendencies of fuels and guidelines for the processing of refinery products.

Manufacturer:  Koehler™ Instrument K27100

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Catalog No. 02-080-43

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  • Thermostatically controlled coking furnace for five samples
  • Cast-iron block type furnace rapidly reaches the standard test temperature of 550°C (1022°F) and controls with ±1°C stability
  • Microprocessor temperature control has °C/°F switchable digital setpoint and display
  • Operator and equipment are protected by an overtemperature control circuit which automatically interrupts power to the unit, should block temperature exceed the programmed cut-off point
  • RS-232 Communications software, ramp-to-set and other enhanced features are available (sold separately)
  • Replacement control bulb (13-187-10) sold separately
  • Electrical Reqts: 115V 50/60Hz
  • Dimensions: 16L x 21.5W x 14.5 in.H (41 x 55 x 37cm)
  • Net Weight: 64 lb. (29kg)
  • Shipping Weight: 78 lb. (35kg)
  • Shipping Dimensions: 8.2 cu. ft.


Conforms to ASTM D524 and related specifications.



115V 60Hz
14.5 in.
ASTM D524, D6074; IP 14; ISO 4262; FTM 791-5002; NF T 60-117
Ramsbottom carbon residue apparatus
Five coking bulbs
21.5 in.
64 lb.
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