Micro-Computer Building Material Non-Combustibility Tester HTB-014

Model

ZD-500

                                                                                       Heating Furnace

Material

made of bauxite Refractory with a density of (2800 ±300) KM3.

With a Height Of

(150 ±1) mm, an inner diameter of (75 ±1) mm and wall thickness of (10 ±1) mm

Heating Furnace System

heating coil is wound on heating furnace tube according to GB/T5464 -2010

Appendix B standard, its exterior is covered with heat insulation layer, conical air flow stabilizer is fixed at the bottom of heating furnace, air flow hood is fixed at the top of heating furnace.

Heating Coil

Heating Resistance Band, specification of 3 mm × 0.2 m nickel , 80% chromium, 20% resistance band

Air Flow Stabilizer

Top Inner Dia （75±1）mm, botton inner Dia （10±0.5）mm ,length: 500mm. 1mm thick stainless steel plate .

Specimen Holder Mass

15±2 g.

Draught Shield

Φ75mm×50mm.

Thermocouple:Contact Thermocouple

Type K thermocouple with a wire diameter of 0.3mm and an outer diameter of 1.5mm.

Heating Temperature

1250°C

Variable Transformer

0~100V

Heating Power

800-1000W,Under stable conditions, when the voltage is about 100V, the heating coil passes a current of about 9~10A.

Thermometer

0~1000±5%

Timer

0~99h

Power

AC220V ± 10%, 50Hz, current ≤10A

Furnace Temperature

750±1℃

Furnace Temperature Drift

<2℃/10min

Gas Source

gas or liquefied petroleum gas(if conditions permit,choose a better quality gas source)

Inside Diameter of Burner

Φ0.17mm,four Φ4mm air-conditioning hole.Flame height is easy to adjust.