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NovaStar, EC110, Air Exchange Type Aging Oven, 216L Capacity, 200C-300C, 5-10 RPM

NovaStar, EC110, Air Exchange Type Aging Oven, 216L Capacity, 200C-300C, 5-10 RPM

Description

  1. Features
    1. 200°C or 300°C, 5-10 r.p.m.
    2. Aging oven with interior hot air circulation that pushes specimens aging in a guaranteed airing and good uniformity environment.
    3. Equipped with ventilation fan and over temperature relay.
    4. Can also be used as drying oven by changing the test frame rack.
  2. Application
    1. Air exchange type aging oven is used for testing insulator of wires or rubber specimens to compare the change of tensile strength and elongation rate after aging test.
  3. Air Exchange Rate Test Method and Calculation
    1. Block all of ventilation holes, door(s), temperature probe hole, especially the hole for shaft of air circulation fan before test, otherwise will cause remarkable test error.
    2. Connect the watt meter to power of the oven (according to ASTM standard, resolution of the watt meter should be 1.0 whr and 1 hour).
    3. Rise up the temperature inside the oven to 80±2°C above room temperature. Measuring position of room temperature should be at 2 m from the oven and at almost the same height of the air inlet, should also be away at 1 m from any other object.
    4. Measure the power consumption (W) for half an hour, times 2 to get the value of 1 hour.
    5. Remove all the seal materials and measure the power consumption under air exchange by using the same way.
    6. Use the following formula to calculate the air exchange times per hour: N = 3590 (X - Y) / V * D * T
    7. N: number of air exchange per hour
    8. X: average power consumption in watts hour during ventilation by the watt-hour reading
    9. V: volume of the testing chamber cm3
    10. Y: average power consumption w-hr with no ventilation obtained by the same way
    11. D: density of the ambient room air during the test g/cm3
    12. T: difference of temperature between the testing chamber and the ambient room air 0°C