Accelerating Rate Calorimetry

Accelerating Rate Calorimeter 305 (ARC)

The Accelerating Rate Calorimeter 305 (ARC 305) provides adiabatic calorimetry data in a safe, controlled laboratory environment.

This information helps provide a sound understanding of the fundamental physical processes involved. From this understanding, various safe operating systems and procedures can be developed to mitigate the hazards posed by a reactive system.

The advanced ARC 305 helps engineers and scientists identify potential hazards and tackle key elements of process optimization and thermal stability. As a highly versatile, miniature chemical reactor, sample can be stirred, material injected, and it can be used for vent studies. The ARC 305 has been designed to use the traditional 10 ml ARC spherical vessel but can also use the larger 130 ml vessel for low Phi or vent testing.

Fastest Tracking Rate
More reliable data and a wider range of application due to the fastest tracking rate up to 200 K/min 
VariPhi technology
Patented VariPhi technology can realize low phi test even with a small and safe sample size. Effective detection of both exothermic and endothermic transitions can be achieved by the versatile operating modes on ARC 305
Proteus software
Controlled by the same powerful Proteus software which user can use to operate all other NETZSCH thermal analysis instruments in the lab. 

The Accelerating Rate Calorimeter 305 (ARC 305) simultaneously measures temperature and pressure. The sealed pressure system also allows the user to evaluate the effect of different gas atmospheres on the thermal stability of the system.

Gaseous reaction products may be analyzed at the end of an experiment to help identify and understand the reaction mechanisms involved.

A single experiment provides data for use in the following:

  • Thermal Hazard Evaluation
  • Pressure Hazard Evaluation
  • Thermokinetic Analysis

User safety is a key objective in the design of model 305. The user is protected by a series of safety systems that are completely independent of the control system. These safety systems work to protect the user in the event that the primary control system fails. Fully computer-controlled and highly automated, the Accelerating Rate Calorimeter (ARC 305) features a graphical interface that is easy to learn and use.

The system is totally integrated into clean, modern designs in which all routinely used equipment is easily accessible.

Technical Data

Temperature range
RT to 500°C
Operation modes
Heat-Wait-Search (primary mode of operation)
Iso-Fixed technique
Iso-Track technique
Ramp mode for fast screening of unknown samples
High tracking rate
With VariPhi
Heat-Wait-Search, with Phi = 1
Constant power
Constant heating rate
Fire exposure mode
True isothermal mode

Temperature Range:
RT to 500°C

Pressure Range (Standard):
0 bar to 150 bar

Pressure Accuracy:
0.35%  full scale (150 bar)

Sample container:
spherical sample vessel: 1 ml to 130 ml
tube sample vessel: 1 ml to 9 ml

ASTM standard:
based on E1981

Applications
Process Safety
Energetic Materials

Test cell materials for spherical vessels with a wall thickness between 0.4 mm and 0.9 mm:
Stainless Steel
Hastelloy
Glass
Titanium
Tantalum

(Volume: 1ml to 130 ml)

Test cell materials for tube-type vessels with a wall thickness of 0.4 mm and 0.9 mm: 
Stainless Steel
Titanium
(Volume: 1 ml to 8.5 ml)

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