Temperature Sensor – Thermocouple: Fine wire of Cr/Al of 0.5 mm diameter located in 0.6 mm diameter pocket hole in temperature sheath resistant to 1000 degree centigrade
In the model GWT A2, current is held approximately constant (15 % swing) once the heating element touches the specimen.
Heating Element – Glow Wire: Nickel / Chromium (>77% Ni/20±1%Cr) based heating element (glow wire) with overall diameter of 4.00mm ±0.07mm
Time Controller – Micro-controller based programmable timer 0 to 999 sec
The total test time can be programmed through keyboard
The ignition time and extinguish time of flame can be registered in timer
The stored time values can be viewed after the end of test
Setting on PC for PC based variant
Penetration Depth – Mechanically restricted to 7 mm
Specimen size – 180 x 150 Sq.mm max. & 15 x 15 Sq. mm min., Thickness 10mm to 80 mm.
Test specimen contact force against the glow wire is preloaded to 0.8 to 1.2N
Test Chamber Dimensions – (Available only with automatic variants)
Dimensions – 600 mm W x 300 mm D x 610 mm H. (approx.)
Supply Voltage – 230 V AC, 50 Hz, 1 Phase, 500 VA