Cement Calorimeter ToniCAL Hexa – Model 7334

Computer controlled isothermal heat flow calorimeter with six measuring cells for the continuous determination of the total evolved heat of hydration of binding materials, preferably of cement according to ASTM C1702.


Key benefits for the user:

  • parallel, independent, time-shifted operation of the six measuring cells in all operating states such as: self-calibration, zero effect determination and measuring
  • high measuring sensitivity due to three switchable measuring ranges for different binders
  • possibility of re-injection of additives including homogenization
  • evaluation of results by means of a PC with numerical and/or graphic output



Working Principle

A defined amount of the pulverized sample is filled into a thin walled measuring vessel (usual test glass) and placed in one of the six measuring cells within the calorimeter vessel. A further vessel (re-usable injection syringe) with the fluid portion is integrated into each sample vessel. Simultaneously or timely independent all measuring cells can be filled with the same or different materials. A totally tempered inert sample with the same filling height is allocated to each measuring chamber.

After the thermal balance is reached in the measuring cell(s) the both reaction partners (normally binding materials and distilled water) will be mixed under pressure within a few seconds.

Using an optional later injection module, designed for two fluid vessels, a further reaction partner (additives as BV, FM or others) can be dosed later and mixed with the ductile sample by means of a manually operated agitator rod. Directly with the mixing of the reaction partners starts the continuous recording of the thermo-voltage [mV] as measure for the produced quantity of heat.

All measured values, graphics and test parameters will be stored in a database and can be exported.

The complete data capturing and evaluation for the test is realized by the software ToniDCA, which is installable on a common PC system (limited IBM) from Pentium II with the operation systems Windows 95/98/2000/NT/XP

Additional information

Power supply:

Voltage = 115 / 230 V Frequency = 50/60 Hz Power = < 250 VA


Control unit (width x depth x height) 520 x 280 x 310 mm Calorimeter block (height x diameter) 600 x 375 mm


Control unit : 32 kg Calorimeter block : 70 kg

Integrated measuring cell:

Heating period = <8 h Ambient temperature = 20 °C Ambient temperature area = +3 … 50 °C Working temperature area = ambient temperature + 5K °C

Initial weight:

Solid (depending on grinding fineness) = 10 g Liquid (depending on W/Z value) = 5 g

Detection barrier

2,25 µW/g


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