Hot Wire Ignition Tester MLT-HWI1

Product information:
This tester conforms to the standard requirement of IEC60695-2-20. It is suitable for electric and electronic products, household appliance materials to do ignition dangerous test. It simulates the heat source or ignition source of simulates glow component and overload resistance which may cause thermal stress in a short time.

Hot-wire coil ignition test adopts the specific size (ф0.5mm length: 250mm) and specific material (Ni80/Cr20) of heater strip which is pre-annealed with required heating power (0.26W/mm) and time (8s~12s). Then coil heater strip on the specimen for 5 cycles according to certain wire wrapping tension (5.4N) and certain wire wrapping distance (6.35mm). Next, take the specimen with wrapping heater strip to test until 120s under the stipulate heating power (0.26W/mm) the users can judge the fire risk according to whether the specimen ignite and the ignite time.

Model specification and technical parameters:

Parameter model MLT-HWI-1
Conforms  to standard IEC60695-2-20、GB4943
Heating coil ф0.5mm,Ni80/Cr20,length:250mm±5mm ,cold Resistance5.28Ω/m
Anneal holder distance 250mm
Specimen distance heightholder and 70mm,high:60mm(the distance between the holder surface to the connector plate surface)
Wire tension distance 5.4N±0.05N,6.3mm±0.2mm(within 31.5mm±0.5mm,coil 5 cycle, national standard is 6mm)
wrapping and its
Annealing power 8s ~ 12s(1s ~ 999.9s digital display can be preset) ,
time and 0.26W/mm±4%(digital display is adjustable)
Testing time and power 120s(1s ~ 999.9s digital display can be preset) ,
0.26W/mm±4%( digital display is adjustable)
Specimen size L×W×H:(125 ± 5mm) ×(13.0 ± 0.5mm) ×(0.75+0.075
0mm,1.5+0.15 0mm,3+0.3 0mm)[ national standard is 0.75±
0.1 mm,1.5± 0.1 mm,3± 0.2 mm]
Combustion box volume Greater than0.5 cube(can be order 0.75 cube、1cube)
Power supply AC 220V±10%,50Hz;110V,60Hz