ZL-6010B Ventilation-Type Aging Testing Chamber(Touch Screen)

Overview:

The Air Exchange Aging Test Chamber is suitable for wires, leather, plastics, rubber, fabrics, etc. After being uniformly heated at a specified temperature and time, and while maintaining fresh air inside the chamber, it observes the properties of samples before and after aging, such as yellowing resistance, adhesive failure, shrinkage, elongation, residual rate, etc., to determine their aging characteristics. Specifically for wires and cables, to maintain fresh air inside the chamber during heating, the unit is specially equipped with an adjustable air exchange rate.

This instrument is designed in compliance with the test standard requirements of UL1581, ASTM-D2436, CNS3556, CNS742, JIS7212, and JISB7757.

Technical Specifications:

Usage Conditions:

1. Power Supply: Three-phase 380V AC 50Hz
2. Ambient Temperature: 5~35°C
3. Ambient Humidity: ≤85% R.H.

Performance Indicators:

1. Power Supply: AC380V
2. Power: 6 KW
3. Temperature Range: Ambient +25°C ~ 300°C
4. Control Accuracy: ±0.5°C
5. Resolution Accuracy: 0.1°C
6. Heating Time: From ambient temperature to 300°C, approximately 60 minutes.
7. Machine Structure and Materials:

    7.1. Internal Chamber Dimensions: 45cm (Depth) × 50cm (Width) × 50cm (Height).

    7.2. External Dimensions (Approx.): 1100mm (Length) × 650mm (Width) × 1275mm (Height)

    7.3. Internal Chamber Material: SUS # Stainless Steel; External Case: Painted.

    7.4. Thermal Insulation Material: High-Density Rock Wool.

    7.5. Heater: One set of Spiral Tube Heater: AC380V 6KW.

8. Auxiliary Equipment:

    8.1. Fuse Switch

    8.2. Overload Protection

    8.3. One set of Air Exchange Rate Measurement Device. (Determines the air exchange rate of the aging oven based on power consumption, includes digital wattmeter and digital TIMER).

    8.4. One set of Air Exchange Rate Adjustment Device. Adjustable from 0 to 200 times/hour within RT ~ 250°C (measured at 80°C).

    8.5. Wide-Angle Projection Lighting Equipment

    8.6. Multi-Layer Vacuum Glass Viewing Window

    8.7. Two Laboratory Shelves / Rotary Turntables

8.8. One Watt-hour Meter

Air Exchange Rate Test for Air Exchange Aging Test Chamber

Test Procedure

1. Seal all ventilation holes, doors, thermometer holes, and gaps around the blower (most surfaces can be effectively sealed with pressure-sensitive tape). Connect a standard watt-hour meter to the aging chamber’s power system.
2. Control the working chamber temperature of the aging test chamber to 80±2℃ above the ambient temperature. The temperature inside the working chamber is measured from the central test point. The ambient temperature is measured 2m away from the aging chamber, at least 1m away from other surrounding objects, at a position nearly level with the aging chamber’s air inlet.
3. When the temperature at the test point in the working space first reaches the control temperature and stabilizes for 2 hours, measure the electrical energy consumed by the aging chamber within 60 minutes.
4. Remove all seals, open the air exchange port, and follow the methods described in Article 2 and Article 3 to measure the electrical energy consumed by the aging chamber within 60 minutes (if the air exchange rate does not meet the specified range, readjust the ventilation opening).

Calculation of Test Results

5. Using the measured temperatures inside the chamber and the ambient temperature when the aging test chamber’s air exchange port is sealed or open, calculate the arithmetic averages respectively. Convert the measured electrical energy consumption into average power.

N = 3590 • (P2 – P1) / V • d • △T

Where: N —– Air exchange rate, times/hour;

P1 —- Average electrical power consumed when sealed, W;

P2 —- Average electrical power consumed when open, W;

△T — Difference between the arithmetic average of the temperature inside the chamber and the ambient temperature, ℃;

V —- Working chamber volume, L;

d —– Density of air at the surrounding ambient temperature, g/L.

The calculation result of the above formula should meet the following requirements:

Air Exchange Rate

Forced convection type: Divided into two types, up to 100 times/hour; 100 ~ 200 times/hour should be adjustable.