Temperature range: normal temperature ~ -38℃ (20℃ room temperature)
Constant temperature accuracy: ±0.5℃
Cold bath size: 240×175×120 mm (length × width × height)
Dimensions: 600×500×630 mm (length × width × height)
Machine weight: 32Kg
Power supply: AC220V±10% 50HZ
Iii. Instrument Composition:
1. Bending device: It is composed of two concentric glass tubes with steel clamps at the lower end. A slit is left in the inner tube between the clamps so that the mercury ball of the inner tube thermometer can be exposed. Turning the handle allows the inner tube to move up and down, thereby changing the distance between the clamps. Each 10 turn of the hand square will change the distance between the grips from 40±0.1mm to 36.5±0.1mm;
2. Steel sheet: Flat steel sheet with a length of 41±0.05mm, a width of 20±0.2mm, and a thickness of 0.15±0.02mm shall be flattened when not in use;
3. Cooler: double-layer dewar bottle, providing cold liquid through circulating constant temperature bath;