（China）YY501B Water Vapour Transmission Rate Tester

IV.Technical Parameters:

1. Standard test environment module:

1.1. Temperature range: 15℃ ~ 50℃, ±0.1℃;

1.2. Humidity range: 30 ~ 98%RH, ±1%RH;Weight accuracy: 0.001 g

1.3. Fluctuation/uniformity: ≤±0.5℃/±2℃, ±2.5%RH/+2 ~ 3%RH;

1.4. Control system: controller LCD display touch temperature and humidity controller, single point and programmable control;

1.5. Time setting: 0H1M ~ 999H59M;

1.6. Sensor: wet and dry bulb platinum resistance PT100;

1.7. Heating system: nickel chromium alloy electric heating heater;

1.8. Refrigeration system: imported from France “Taikang” refrigeration unit;

1.9. Circulation system: the use of extended shaft motor, with high and low temperature resistance of stainless steel multi-wing wind turbine;

1.10. Inner box material: SUS# mirror stainless steel plate;

1.11. Insulation layer: polyurethane rigid foam + glass fiber cotton;

1.12. Door frame material: double high and low temperature silicone rubber seal;

1.13. Safety protection: overtemperature, motor overheating, compressor overpressure, overload, overcurrent protection;

1.14. Heating and humidifying empty burning, underphase inverse phase;

1.15. Use of ambient temperature: 5℃ ~ +30℃ ≤ 85% R.H;

2. Moisture permeability test module:

2.1. Circulating air speed: 0.02m/s ~ 1.00m/s frequency conversion drive, stepless adjustable;

2.2. Number of moisture-permeable cups: 16 (2 layers ×8);

2.3. Rotating sample rack: (0 ~ 10) rpm(variable frequency drive, stepless adjustable);

2.4. Time controller: maximum 99.99 hours;

3. Power supply voltage: AC380V± 10% 50Hz three-phase four-wire system, 6.2kW;

4. The overall size W×D×H:1050×1600×1000（mm）

5. Weight: about 350Kg;