Cone Calorimeter
ISO 5660, ASTM E1354, ASTM E1474, NFPA 264A
Oxygen Depletion
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FIRE’s reputation is founded solidly on the principle of providing the highest
quality instrumentation backed by over 30 years of expertise in the fire testing
field. FIRE is in the forefront of fire testing instrumentation through the manufacturing
and testing activities of the Fire Laboratory of the University of Gent and Warrington
Fire Research and drawing on the long term involvement of FIRE personnel in their
previous companies.
Rate of heat release is well understood to be one of the most important parameters
for determining the fire hazard that may be presented by material or a product.
The most accurate and elegant method of measuring heat release is using oxygen
depletion calorimetry. The Cone Calorimeter has gained very wide acceptance world-wide
since it has been shown that, in many fields, its results can be used in a range
of fire models for furniture, cables, building materials, etc.
FIRE has considerable in-depth experience in this field, which is evidenced in
the design of our New Generation Cone Calorimeter which incorporates the latest
technology and control systems and complies with all recent national and international
standards. This new instrument is designed to be straightforward to operate and
as automatic as possible with excellent and easy-to-use software both for control
and processing of data.
Features
- Purpose designed PLC control and permanent software integration to give
unrivalled functionality, performance and ease of use.
- Background system monitoring facility. Continuously checks the operation
of the instrument and sensors. If there is a problem, the software will highlight
the specific component and sound an audible alarm as appropriate. This facility
covers thermocouples, safety doors not closed, methane gas supply, shutter,
heated filter, water flow in heat flux meter and all status checking within
the gas analysis rack.
- Unique Calibration facility allows the Cone heater to be set up at various
irradiance levels, performs a methane calibration and calibrates the gas analysis
instrumentation completely automatically without the intervention of an operator.
All of the calibration data is stored for retrieval if necessary.
- Conical heater rated at 5000W at 230V to give a heat output up to 100kW/m2
in either the horizontal or vertical orientation. Uses PLC PID 3-term temperature
control. Shutter mechanism for both horizontal and vertical orientations.
Electronic positioning interfaced with PLC control system for automatic test
commencement by wireless remote control or direct instrument control.
- Spark Ignition with special purpose electrode using a 10kV generator. Electronic
positioning with safety interlocks. Will only allow sparking to commence when
all safety door interlocks made.
- Test area has toughened glass doors with safety interlocks. Stainless steel
base-plate and back-plate houses all electrical and gas connections. Incorporates
the independently mounted mass loss unit.
- Load cell mounted independently of the main framework for superior stability
and accuracy to 0.1g. Avoids any vibration problems from exhaust fan. Load
cell is protected with a ceramic plate and a stainless steel enclosure to
guard the unit from radiated heat and test debris. Fitted with mechanical
stop and has digital display of mass along with software display. Push
button electronic and software tare. Fully integrated with PLC control and
data acquisition system.
- Electronic cone height adjustment at either 25 or 60mm to allow for standard
testing or for testing intumescent specimens.
- Supplied with high quality stainless steel sample holders for specimens
100 x 100 mm square and up to 50mm thick, complete with standard edge retainer.
- Methane calibration burner with mass flow controller coupled with the PLC
for unmatched precision.Calibrated water-cooled heat flux meter for accurate
irradiance measurement.
- Quick-connect and disconnect gas analysis rack which can also be wheeled
away for use on other large scale calorimeter rigs. All the advantages of
a single purpose Cone but with this added flexibility.
- Gas sampling through a heated (200°C) ceramic filter, which can be used
for several tests before changing. Can readily be washed and re-used. Superior
heat exchanger with refrigerator unit, which cools the sample gas to 5°C.
- Oxygen and CO2 analyser with pressure compensation supplied as
standard with total PLC integration, giving full auto-calibration routines
and diagnostics.
- Exhaust system uses heavy gauge stainless steel ducting for minimum distortion.
Soot sample and FTIR ports and ring sampler are standard. Orifice plate pressure
measurement and quick response temperature measurement points.
- Stainless steel variable speed fan rated to 300°C with a noise level lower
than 62dB at 50Hz. The fan is adjustable within the software for ease of use.
- Integrated high specification personal computer with network card. Uses
high end processor with a 15 in.(380mm) LCD Flat screen monitor. This set-up
allows the use of network printers and access to the cone from other computers.
FIRE personnel can connect to the Cone PC via a modem for remote support and
software updates. Because the PC is integrated within the instrument the Cone
assembly occupies the smallest possible footprint.
- CE compliance.
- Strict adherence to the latest standards.
- Rugged design, easy to clean, with built in safety features.
- Smoke measurement (as per ISO 5660-2 draft standard) by 0.5mW helium-neon
laser system insulated and solidly mounted for high stability.
Software
The sophisticated, elegant and easy-to-use control and acquisition software
fully controls and auto-calibrates the FIRE Cone and acquires data. Reports
are generated to the required international or national standards automatically
to a user defined template. Raw data is always accessible and stored for any
future reference, additional calculations and manipulations.
The following is a list of the available information and measurements via the
Cone and software:
- Rate of Heat Release (kW)
- Rate of Heat Release per unit area (kW/m2)
- Average Rate of Heat Release for specified intervals (kW/m2
tn - tn+1)
- Total Heat Release (kW)
- Effective Heat of Combustion (MJ/kg)
- Total Mass Loss (kg)
- Time to Ignition (tig)
- Rate of Mass Loss (kg/s)
- Specific Extinction Area (m2/kg)
- Rate of Smoke Production (m2/s)
- Heat Flux (kW/m2)
- O2 Concentration (%) as standard
- CO2 (kg/kg and %) as standard
- CO (kg/kg and %) as option
- Soot Mass Sampling (kg/kg) as option
Options
- CO measurement by NDIR option available using a O2/CO2/CO
analyser with similar specification to the standard O2/CO2
analyser.
- 2m Heated analytical line at 200°C maximum with temperature controller and
software display of gas line and filter temperature.
- Soot mass sampling using mass flow controller.
- Enhanced gas analysis available using FTIR with a comprehensive software
package. Mobile FTIR rack system, which can be readily disconnected and used
in other applications.

Requirements
- Power supply: 110 - 230V AC 50-60 Hz - Single phase 30 Amp.
- Commercial methane at 4 bar (A) with a minimum purity of 99.5%
- CO2 Calibration gas as standard - 1 bar. If CO is also analysed
a CO/CO2 gas mixture is required -1 bar.
- Water supply for cooling heat flux meter at 2-3 bar (A) plus a drain line
(a chilled water circulation unit is also acceptable)
Other Uses for the Detachable Oxygen Depletion Calorimetry Rack
As heat release measurement is so important in understanding fire, oxygen
depletion calorimetry is widely used in large-scale tests. The detachable
Gas Analysis Rack on the Cone can readily be used as the instrumentation console
for oxygen depletion and gas analysis for CO2 and CO in other fire
tests, such as the SBI, the ISO 9705 room corner test, furniture calorimeters
and other large-scale heat release apparatus. This arrangement allows maximum
flexibility together with minimum investment for all fire testing needs.
NOTE Higher capacity pumps and gas handling filtration required for large-scale
calorimeters e.g. ISO 9705, Furniture Calorimeters etc.
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FIRE Instrumentation &
Research Equipment
Division of Tobass b.v.b.a.
Winkelstraat 32, 9700 Oudenaarde, Belgium
E-mail:
info@fire-eu.com
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