Thermodynamics > Heat transfer

TH 312 THERMAL CONDUCTIVITY OF NON-METALLIC MATERIALS,Guarded hot plate method, Computer Interface




This bench top unit is for testing of thermal conductivity of non-metallic materials using guarded hot plates per ISO8302 and ASTM C177-04.

The equipment consists of a central heater with hot plates, a guard ring with heater and hot plates, and two water cooled cold plates. Two specimens are inserted between the hot plates and cold plates. The assembly is encased in a test cabinet with insulation. The cold plates are clamped together to provided a uniform pressure.

A service module provides power supply heater control unit, and measuring instruments.

The unit requires outside water supply.

Instruction manual is also included.

  • Determination of thermal conductivity.

  • Hot plate
: 120 mm diameter  
  • Guard ring plate
: 240 mm diameter  
  • Hot plate heater
: 500 W with control knob  
  • Guard ring heater
: 500 W with control knob  
  • Cold plates
: 2 x 240 mm diameter  
  • Specimen size
: 240 mm diameter, maximum thickness 25 mm  
  • Temperature control unit to limit temperature of heater
  • Sensors with digital display
: Temperature for hot plates, cold plates and cooling water   
  : Differential temperature, 0.1oC resolution  
  : Input power measurement of voltage and current  
  • Sample specimens
: 2x 3 different materials  
  • Computer Interface unit with software for data display and analysis by computer (separately supplied).
  • WiFi feature for data logging and real-time display remotely on smartphone (iOS and Android)
  • Power supply
: 220 V, 1 Ph, 50Hz. Other power supply is available on request.  


Net (unpacked) shipping dimensions WxLxH  : 47 x 97 x 42 cm

Net weight  : Approx. 41 kg

  • TH312-014            Cooling unit instead of outside water supply