FAST TRACK RATEfor a good measurement accuracy even at lower phi factors
LOW ONSET TEMPERATURE detection threshold
PRACTICAL BENCH TOP INSTRUMENT with a compact design for lab space saving and easier maintenance
CONVENIENT TO USE with good usage to maintenance time ratio
ACCESSIBLY PRICED instrument and replacement parts
Temperature range (°C)
Room temperature to 500
Temperature increase detection Threshold (°C/min)
0.005 to 0.02
Temperature Precision (repeatability, °C)
Pressure Range (bar)
0 to 200
Pressure Resolution (bar)
Pressure Accuracy (bar)
With its large temperature range, TAC-500AS is capable of testing a wide range of materials from low to high decomposition temperatures and of testing energetic decompositions leading to large temperature increase.
Its pressure range up to 200 bar is ideal for reactions releasing large gas quantities and for testing large samples when lower phi factor measurements are necessary.
TAC-500AS is a versatile calorimeter operating under various modes
Heat-Wait-Search (HWS) mode is used for the most sensitive determination of onset temperature of decomposition
Isothermal mode can be used to characterize reaction kinetics although the HWS mode provides adabatic temperature variation data than can also be treated for reaction kinetics studies
Temperature scanning mode provides faster determination of onset temperature of decomposition than HWS but with less sensitivity
Adiabatic conditions are a worst case scenario that assumes no heat loss from the process, but are quite realistic for large plant vessels that lose heat slowly. That is where an Accelerating Rate Calorimeter like TAC-500AS is useful because:
it operates under adiabatic conditions to test samples at minor to no heat loss conditions,
and it measures the largest temperature rise achieved to establish the worst case scenario if decomposition occurs.
Depending on process specifics, a low phi adiabatic study can also be done to more closely mimic large plant conditions and determine vent sizing.