The Preparation and Operation of Glow Wire Testing Machine Test

Glowing wire tester for electrical and electronic products, household appliances and materials for fire hazard test, simulation of hot components or overload resistance of the heat source or ignition source in a short time caused by thermal stress.

Preparation before glow wire test machine trial1, before use must read the instructions, and follow the instructions step together, in turn;2, do not use non-original accessories, so as to avoid danger;3, the instrument placed in a room with ventilation equipment (or with a special ventilation hood in a small laboratory), in order to exhaust after the experiment.4, the two matching weights with copper wire (has been connected to the sample rack) by the left side of the two pulleys (through the corresponding hole) hanging under the bracket plate.5, according to the standard requirements of the preparation and clamping samples.6, close to the adjustment of the switch(1) loosen the nut that is fixed to the switch to move left and right;(2) press the "left button" car automatically forward, when the sample contact with the hot wire, the hand close the switch, so that the car stopped forward, and fixed close to the switch.(3) Press the "Heating" button to adjust the current adjustment knob. According to the requirements of the sample, adjust the appropriate current value, while the temperature is required to meet the test requirements of the required temperature. When the test piece comes into contact with the hot wire, the limit electromagnet is released and the 1N weight can only be moved forward by 7mm.7, the experiment is completed, the heating button pops up, and then adjust the current adjustment knob to a minimum.


The operation of the glow wire flammability tester test process1, adjust the position of the positioner is to adjust the car to stop the location, and then the board and the composition of the bottom layer of silk paper under the car.2, open the button, adjust the current size is to adjust the temperature to the required test temperature, to maintain a stable about 60s. Turn on the burner power switch and leave the sample holder away from the glowing wire.3, reset the three timers, set the burning time according to the standard requirements, and let the ignition time and flame off the time timer button bounce.4, press the heating button to access the current, clockwise adjustment of the heating power on the "current adjustment" knob, the general hot wire temperature and current (reference value) roughly as follows: 550 ℃ 650 ℃ 750 ℃ ​​850 ℃ 960 ℃ 60A 85A 100A 115A 130A glowing wire can see the redness of the temperature is about 650 ° C. The current is roughly set, the temperature to go through a certain lag time (2Min) to achieve stability, can refer to the thermometer display value in doing fine-tuning.5, to be stable after the temperature, press the "left" button, the car will be ahead. When the sample is in contact with the hot wire, the car is to stop the right line, the instrument automatically timing, to be preset after the hot time to the sample rack automatically back, the test when the test flame, press the "Ti stop button" If you want to stop the experiment, you can press the "reset" button, then the sample rack will automatically drop off the glowing wire.6, the glow wire test instrument is equipped with a delay cut off the power button function, when the hot time more than 5min after the automatic cut off the heating power, if you want to restart, press the "reset" button.