TDR-Ⅱ Concrete rapid freeze-thaw testing machine-28 pieces

混凝土快速冻融试验机-28件

Model: TDR-II

Cooling method of condenser: air cooling

Number of test pieces: 28

Sample size: 100 * 100 * 400, with the same size as the temperature measuring piece

Temperature measurement holes are left on the central specimen

Freeze-thaw cycle cycle: 2.5-4 hours, with a melting time of no less than 1/4 of the freeze-thaw cycle

End of freezing: time/specimen center temperature 1.5-2.5 hours/-16 ± 2 ℃ (adjustable)

End of melting: time/center temperature of the specimen 1.0-1.5 hours/5 ± 2 ℃

Temperature sensor control

Sensor 1: Center temperature control: 5~-16 ± 2 ℃

Sensor 2: Liquid temperature control: High temperature control: 18-23 ℃

Low temperature control: -23~-17 ℃

Sensor 3: Diagonal temperature control: Monitoring the temperature range inside the box to not exceed 2

Sensor 4: Secondary protection temperature control: 50 ℃~-30 ℃

Temperature difference between the center and surface of the specimen: less than 28 ℃

Recording method: digital instrument

Number of cycles: The standard is 300

Sample barrel size: 120 * 120 * 500

Freezing and thawing chamber size: 570 × nine hundred and sixty × six hundred

Freezing and thawing circulation medium and filling amount: -45 ℃ antifreeze,

Refrigeration compressor: imported fully enclosed 8HP

Heating power: 9KW

Maximum operating power: 9.7kw

Power supply: 3N380V 50HZ

External dimensions: 2200x1200x1000

Weight: approximately 450Kg