IEC 60068-2-11 Salt Spray Machine Accelerated Corrosion Testing Equipment

1. AC 220V single-phase two-wire + protective grounding; allowable voltage fluctuation range ±10%V;

2. The allowable frequency fluctuation range is 50±0.5HZ; TN-S mode power supply or TT mode power supply.

3. The grounding resistance of the protective ground wire is less than 4Ω

4. The user is required to configure an air or power switch of corresponding capacity for the equipment at the installation site, and this switch must independently control the use of the equipment. at the installation site, and this switch must independently control the use of the equipment.

1. The ambient temperature is 5~30℃ and the relative humidity is ≤85%R.H;

2. The installation site must be a flat, vibration-free ground;

3. The equipment needs to be kept away from heat sources and flammable and explosive substances;

4. The installation location must not be exposed to direct sunlight and maintain indoor air circulation;

5. The equipment installation site needs to be clean and cannot be installed in dusty places or dust exhaust outlets.

Test room temperature: RT～50℃

Pressure barrel temperature: RT～ 63℃

Relative humidity ≥85%R.H

Test room temperature RT→+50℃≤60 min

Pressure barrel temperature RT→+63℃≤60 min

Temperature resolution: 0.1℃

Temperature deviation: ±1℃

Temperature uniformity: 2℃

Temperature fluctuation:±1℃

Spray volume (m1/80cm2/h) 1.0~2.0 (collect at least 16 hours, take the average value)

Spray pressure: 1.00±0.01kgf/cm2

Potion PH value: Neutral 6.0~7.0 Acidic 3.0~3.1

Spray solution pH value: Neutral 6.5~7.2 Acidic 3.1~3.3

Control time: 1S ~ 9999H can be set arbitrarily

Note: The loss of carbon dioxide in the solution during spraying may cause changes in pH value. You can use the following methods, such as heating the solution to above 35°C before placing it in the test equipment, or using fresh boiling water to prepare the solution to reduce the carbon dioxide content in the solution. , can avoid changes in pH value. In order to ensure the pH value of the spray solution in the acid test or copper accelerated salt spray test, the pH value of the configured potion can be adjusted to 2.8~3.0 and check whether the solution and/or solute meets the requirements. it into the test equipment, or using fresh boiling water to prepare the solution to reduce the carbon dioxide content in the solution, which can avoid the change of pH value. The acid test or copper accelerated salt spray test is to ensure the pH value of the spray solution, Adjust the PH value of the solution to 2.8~3.0 and check whether the solution and/or solute meet the requirements.