Accelerating Rate Calorimeter
Accelerating Rate Calorimeter
Devised by Dow Chemical Company in the 1970's, an explosion at a Dow UK site led to commercialisation of ARC technology. The Chemical Processing Industry has been safer from its first availability in 1980! The ARC has specific features and advantages that make it unique and preferable to all other technologies that were available at this time - and today 30 years later this technology is still the number one choice for most people focusing in the area of quantifying exothermic reactions, effect of heat upon materials and simulating runaway reactions.
For More Details..Key Aspects of the ARC:
- Excellent adiabatic control
- Universal sample type
- Ultimate sensitivity
- Ease of use
- Simplified data analysis
- Worldwide data acceptance
- Safe in use
And Latest Features:
- Greater stability
- Higher sensitivity
- Wider temperature range
- More versatile additional isothermal modes
- Remote operation worldwide
- Virtual technician
- Endotherms/Exotherms
- Zero reflux
- Gas flow
- Low Phi containers
- Fast tracking calorimeter
- Pressure compensation calorimeter
- Correction to phi = 1
- Heat capacity measurement
- Automatic data conversion to... Joules, Watts, moles/g
Spares
A full range of spares and consumables are available from our eshop arcspares.com
Low Φ containers
Designed by THT these low Φ containers are designed to enable accelerating rate calorimeter users to bridge the gap into the world of low-phi testing. These cells are available with several different fittings and can also be fitted with magnetic stir bars. Currently these containers are offered in stainless steel although other materials can be produced. Contact us for further details.
Burst disk unit
THT has designed this burst disk assembly, which is suitable for any accelerating rate calorimeter. Designed to sit above the calorimeter, this device enables the user to protect the system from cell ruptures. The user can fit a number of special burst disks which are designed to rupture at specific pressures and will cause the cell to rapidly discharge. Any liquid vented will be contained within the catch pot. This system is ideally used alongside low-phi containers and glass bombs
Test Services
THT offer a commercial service for clients with minimal testing requirements and cannot justify an instrument purchase.
Hallmarks of this service are
- Confidentially
- Cost effective
- Speed
- Expert analysis
The service can range over all of THT's calorimeters including ARC, RSD and µRC.
Specification
Design
Fully compliant to ASTM E1981 (all revisions)
Calorimeter design to Dow Patent No 4439048 of 1980 and 1984
9cm diameter; 10cm depth calorimeter
2.5cm thick copper, 8 heaters, 6 measuring, control and safety thermocouples
Thermocouple resolution 0.001°C, Precision <0.2%, Accuracy 0.7%
Adiabatic Control to 0.01°C
Temperature range
Ambient-600°C temperature range (-40°C with Cryogenic System Unit CSU option)
Tracking Rate to 20°C/min
Fast Tracking Option (FTO) upto 400°C/min
Sensitivity (applicable to new calorimeters only)
0.02°C/min
Potential to achieve 0.002°C/min to 200°C
0.01°C/min to 500°C
Pressure
Pressure Range 0-200 bar (or specify range to 700 bar with alternative transducers), Resolution 0.005bar, Precision 0.02%, Accuracy 0.05%
Safety
0.25 cubic meter containment vessel (Blast Box);
3mm reinforced Steel, Proximity Switch, Door interlock;
Automated Fume Extraction facility
Control Modes
Adiabatic; Ramping, Isothermal modes, True Isothermal, Isoperibolic, Step Isothermal.
Sample Holders
Hastelloy, titanium, stainless steel, aluminium, glass, ARC bombs (9cm3), low phi bombs (65cm3) tube bombs (1cm3) special open or closed holders for any battery type.
Customer Support
Installation & Training - 1 week, acceptance test
Support
Guarantee 1 year, free of charge phone and email support over lifetime of instrument
Part Supply
10 years guaranteed
Manuals - Full Operations and Data Analysis Manuals with Tutorials
Software
Control Software
National Instruments Labview based ARC-ES Control Software
Full on-the-fly change of test conditions
Full on-the fly operation
Remote User facilities
Ability to transfer operation on system to any allowed PC over network or internet
Virtual Technician facility
Set up multiple tests in one method
Data Analysis Software
National Instruments Labview based ARCCAL+ analysis software
Features include: Graphical and tabulation of raw data including Phi Corrected TMR plots
Data Conversion to Enthalpy, Power, Gas Generation
Kinetic Modelling for thermodynamic and kinetic data analysis
Phi Correction through kinetic modelling
Report generation in Microsoft Word, Excel, HTML
Analysis of 9 concurrent data sets; 3 analyses on each data set, merge all datasets to a single plot.
Operation / Ambient Environment
Environmental Requirements
Temperature 5-45°C, Humidity 0-95%
Air supply (Optional for rapid cooling post test)
Water (needed only for CSU)
Electrical Specification
Single Phase Electrical Supply 100-250V, 13A
Instrument conforms to CE, UL, VCCI, CSA standards
Full range of options available
