To measure/ check Thermal stability of PVC insulation & sheath of Electric cables as per IS:5831.

Measures Thermal stability time in minutes required to change the pH value of 5 to 3 of a universal indicating pH paper placed in a glass tube containing sample and heated in a thermostatically controlled heating chamber at specified temp. of 200°C ±0.5°C.

New Model incorporated a specially designed heating block which eliminated use of expensive silicone oil as in a conventional model