IEC 60068-2-11 Salt Spray Chamber for Environmental Corrosion Reliability Testing

AC 220V single-phase two wires+ protective grounding; Allowable voltage fluctuation range ± 10% V;

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

The grounding resistance of protective ground wire is less than 4 Ω;

Users are required to configure air or power switches of corresponding capacity for the equipment at the installation site, and this switch must independently control the use of the equipment.

•    The environment temperature is 5~30 ℃, and the relative humidity is ≤ 85% R.H;
•    The installation site must be flat and vibration free;
•    The equipment shall be kept away from heat sources and flammable and explosive substances;
•    The installation position shall not be directly exposed to sunlight, and the indoor air circulation shall be maintained;
•    The equipment installation site shall be clean, and shall not be installed in the place with more dust or at the dust outlet

Laboratory temperature: RT ~ 50 ℃

Pressure barrel temperature: RT ~ 63 ℃

Relative humidity ≥ 85% R.H

Laboratory 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 for at least 16 hours, and take the average value)

Spray pressure: 1.00 ± 0.01kgf/cm2

PH value of liquid medicine: neutral 6.0~7.0, acidic 3.0~3.1

PH value of spray solution: 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 the change of pH value. The following methods can be used, such as heating the solution to more than 35 ℃ before putting 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.

•    GB/T2423.17-2008/IEC 60068-2-11-1981 Salt Spray Test Method
•    ASTM. B117-2009 Salt Spray Test
•    JIS H8502 Salt Water Spray Test Method
•    GB/T10125-2012/ISO 9227-2006 Salt Water Spray Test Method
•    GB-T5170.8-2008 Inspection Method for Environmental Test Equipment for Electrical and Electronic Products - Salt Spray Test Equipment
•    GB-T5170.11-2008 Inspection Method for Corrosive Gas Test Equipment
•    ISO9227 Salt Spray Test
•    GB-T10587-2006 Technical Conditions for Salt Spray Test Chamber
•    GJB-150.11A-2009 Equipment Environmental Test Method - Salt Spray Test

The laboratory adopts imported PVC polyethylene plate (South Korea New Miller) with a thickness of 5mm and a durable temperature of 85 ℃.

The seal cover of the laboratory is made of imported acrylic plate with a thickness of 5mm.

The reagent refill bottle adopts hidden attached water level detection, which is easy to clean and not easy to crack.

The pressure air barrel is made of SUS304 # stainless steel high pressure resistant barrel, which has the best thermal insulation effect.

The test material rack adopts a plane dividing rack, which can freely adjust the angle of falling fog and being fogged on all sides. There are many samples placed.

The sealing cover is pneumatically operated.

The laboratory is sealed with water to ensure no leakage of corrosive gas in the box.

The control box and the test box are integrated, and the left and right structures are easy to operate.

Water and electricity separation structure is adopted to effectively prevent water from entering the electrical control box and damaging accessories.

1. Water supplement for laboratory and pressure barrel: manual and automatic water supplement control systems can be connected to the automatic control water supplement of tap water tube or the manual double water supplement mode, which is easy to use;

Note: If the tap water has too many impurities or is acidic or alkaline, a filter shall be installed at the water inlet.

2. Liquid medicine water supplement: large water tank with concealed inside is adopted, and manual water supplement is adopted.

Adopt Bernoult principle to absorb salt water and then atomize, with uniform atomization degree;

There is no blocking crystallization phenomenon, which can ensure the standard of continuous testing;

Nozzle made of special glass (included 4 spare nozzles)

Adjustable taper spray tower can effectively disperse spray, ensure uniform spray and control spray amount.

1. Fully automatic pressure balanced mist exhaust device, which only needs to be connected with the mist exhaust tube, and automatically discharges mist according to the pressure in the box.

2. Manual demisting button switch. Just click this button before opening the test chamber cover to quickly remove indoor fog.

3. Note: The mist exhaust pipe of the machine shall be extended to the outdoor open place, and it is necessary to avoid being close to the corrosive articles to prevent the mist from the machine from corroding other articles; The extended mist exhaust pipe shall be free of wavy discounts to prevent condensate in the mist exhaust pipe from blocking the mist exhaust pipe and effectively discharging waste gas.

1. 7-inch touch screen controller can be used for constant value (continuous, or constant temperature) experiments or programmable (intermittent, cyclic tests) salt spray experiments. One set can achieve multiple functions to meet the different requirements of customers for salt spray experiments. High-precision temperature control module, PID automatic calculation control temperature, high stability platinum temperature measurement probe.

2. Standby can be set, that is, when the temperature is close to the set temperature, the instrument will automatically spray and count at the same time. After the time runs out, the defogging will be started automatically, and the defogging time can be set. The water replenishment delay can effectively solve the high-frequency replenishment action caused by the fluctuation of the water level. Improve the life of the water replenishment system.

Set temperature value, current temperature value, set time, current time, spray time, constant temperature time, over temperature abnormal indicator, water shortage abnormal indicator, operation end indicator, spray status indicator, demisting status indicator.

1. Acceptance criteria: the technical indicators shall be in accordance with the methods specified in the "Technical Agreement" signed by both parties.

2. Acceptance method: formal acceptance shall be conducted at the Demander's site.

3. If the Demander needs to invite a third party (verified by the National Environmental Test Equipment Quality Inspection Center and issued a valid inspection report) to participate in the acceptance before leaving the factory, the cost shall be borne by the Demander. If the first acceptance is unqualified, the expenses incurred in the second acceptance after improvement by the supplier shall be borne by the supplier.

4. The customer entrusts the National Environmental Test Equipment Quality Inspection Center for verification.