Model ZLT-GTR -Glow Wire Test Apparatus with Fume Cupboard

The sample has to be fastened to a carriage on which, by means of a tensioning cord, a weight with a force of 1 N is effective in the direction of the wire loop. Scales enable the reading of the flame height and the depth of penetration. Approx 200 mm below the wire loop a board of pine wood, covered with a layer of tissue paper, is mounted. This device enables to judge the danger of a fire spreading through burning drops or glowing parts falling from the sample. The calibration is done with silver foil, when the foil melts, the measuring unit must indicate a temperature of 960?.

Standard outfit:

• 1 wire loop of nickel-chromium, Φ4 mm, accordance with IEC60695-2-10 figure 1, with clamping mechanism, with Φ0,6 mm for the thermocouple
• 1 carriage with fixture for the specimen, with a rate of approach and withdrawal of 10 mm/s to 25mm/s
• 1 fine rope pull mechanism with weights for loads of 0.95±0.1N
• 1 gauge of 7 mm for the depth of penetration, with maximum pointer and stop,
• 1 scale to measure the flame height,
• 1 high current isolating transformer to heat the wire loop, with series connected variable ratio transformer, to set the temperature up to 960±10?,
• 1 type K thermocouple Chromel-alumel, Φ1mm, length approx.500 mm, to indicate the temperature of the glow-wire loop, with digital display measuring range 0~1050?, built-in operable,
• 1 chamber with a volume of at least 0,5 m3, black interior,
• 1 wooden board, 10 mm thick, 10 sheets of wrapping tissue, of grammage between 12g/?~30g/?.
• Power supply: 220V50Hz other voltages request.