ZL-6010A Ventilation-Type Aging Testing Chamber(Button Type)

Execution Standards:

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

 

Usage Conditions:

1. Power supply: Three-phase 380VAC 50Hz
2. Ambient temperature: 5~35℃
3. Ambient humidity: ≤85% R.H

 

Performance Indicators:

1. Power supply: AC380V
2. Power: 6KW
3. Temperature range: Ambient temperature +25℃~300℃
4. Control accuracy: ±0.5℃
5. Resolution accuracy: 0.1℃
6. Distribution error: ±2.5℃
7. Heating time: From ambient temperature to 300℃, approximately 60 minutes.
8. Machine structure and materials:

8.1. Inner chamber dimensions: 45cm (depth) × 50cm (width) × 50cm (height).

8.2. Outer dimensions approximately: 1040mm (length) × 650mm (width) × 1275mm (height)

8.3. Inner chamber material: SUS#304 stainless steel, outer case: baked paint.

8.4. Insulation material: High-density rock wool.

8.5. Heater: Spiral tube heater set: AC380V 6KW

8.6. Auxiliary equipment

8.6.1. Fuse switch

8.6.2. Overload protection

8.6.3. Indicator lights for various actions

8.6.4. Rotary tray and rotary motor set. (Rotary tray is removable, speed 8~10rpm)

8.6.5. Air exchange rate measurement device set. (Measures the air exchange rate of the aging oven based on power consumption according to JISK7212, includes digital wattmeter and digital TIMER)

8.6.6. Air exchange rate adjustment device set. Exchange rate is adjustable from 3 times ~200 times/hour within RT~250℃ (measured at 80 degrees).

8.6.7. Wide-angle projection lighting equipment.

8.6.8. Equipped with timer set: Used for aging timing and exchange rate measurement timing.

8.6.9. Multi-layer vacuum glass viewing window.

8.6.10. Two laboratory shelves.

8.6.11. One watt-hour meter.

9. Air supply circulation system:

9.1. Uses multi-blade centrifugal circulation fan: One air supply fan: 1&380V 370W

9.2. Exchange rate can reach 8~200 times/hr, arbitrarily adjustable within RT~250℃.

10. Circuit control system:

10.1. Temperature controller uses microcomputer electronic setting and digital display.

10.2. This system uses PROPORTIONAL + INTEGRAL + DIFFERENTIAL + SCR control (i.e., Proportional, Integral, Derivative + SCR), which improves the service life and stability of control component interfaces.

10.3. Has PID auto-tuning function, no manual setting required.

10.4. Uses high-precision fine wire sensor.

10.5. Relay is OMRON brand (Japan).

10.6. Timer is OMRON brand (Japan).

10.7. Ex-factory undergoes 48-hour full machine aging test run.

10.8. Has phase failure protection and overtemperature alarm.

 

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.