What’s JIS D 0203 Rain Test Chamber ? JIS D 0203 Rain test chamber is manufactured in accordance with the test requirements of R1, R2, S1 and S2 in JIS D0203 test methods for humidity and water resistance of automobile parts. The JIS D 0203 Rain test chamber suitable for the wet and water resistance test methods of various auto parts. JIS D 0203 Rain test chamber design allows you to add on additional features, depending on the number and type of tests required.
One possible choice is to integrate the spray system with a regular temperature and humidity chamber to save money and floor space, while also creating an opportunity to simulate actual operating conditions your product may experience. JIS D 0203 Rain test chamber system uses multiple control solenoids to vary the water’s spray volume/pressure. A holding tank prepares the water to the desired temperature, if required. A pump ensures the water is delivered in the proper pressure range. The water is fed to a motorized manifold that rotates the spray arms. Each spray arm has an adjustable valve to allow finer control of the spray.
Test Room Dimension(mm)
Rain & Spray Test
Speed and rate controlled rotating rain and spray nozzles
JIS D 0203 Method of Moisture Rain and Spray Test for Automobile Parts
Power Supply (V. Hz)
AC 220V, 50Hz, 2.5kW
Gross Weight (Kg)
R1 Spray room temperature water with two nozzles at 4.3 psi (0.3 kgf/cm2) for 10 minutes. The flow rate of the water shall be 0.8 gallons/min. (3.2 L/m).
R2 Spray room temperature water with two nozzles at 1.4 psi (0.1 kgf/cm2) for 10 minutes. The flow rate of the water shall be 0.5 gallons/min. (1.9 L/m).
S1 Spray room temperature water with 40 nozzles at 14.2 psi (1 kgf/cm2) for 30 minutes. The flow rate of the water shall be 6.5 gallons/min. (24.5 L/m).
S2 Spray room temperature water with 40 nozzles at 42.7 psi (3 kgf/cm2) for 60 minutes. The flow rate of the water shall be 10.3 gallons/min. (39.2 L/m).
The shell of the JIS D 0203 rain test chamber is made of domestic high-quality steel plate, and the surface is sprayed with baking paint, beautiful and durable.
The inner test room of the JIS D 0203 rain test chamber and the turntable are all made of SUS304# stainless steel plate to ensure that they will not rust for a long time.
Flow rate, pressure through the pressure gauge of the panel and the flow rate are visually displayed, and the pressure rate can be adjusted manually.
The turntable uses domestic high-quality stepping motor. The speed and angle can be adjusted on the touch screen, and it can be adjusted steplessly within the standard range.
The coil drive adopts domestic high-quality stepping motor, and the speed of the coil is precisely adjustable.
Test sample power socket is provided in the test room, and the power cut time can be controlled by the program, for example, power on test for 10 minutes and power off test for 10 minutes.
Touch screen 7-inch touch screen + PLC as the core control element, fully automatic program control, can set and save multiple automatic programs,
Which is convenient for the testing of various products, such as 10 minutes of water spraying, 10 minutes of power, 10 minutes of placing and free to set within 4 digits.
The JIS D 0203 Rain test chamber is mainly used for wet and water resistance test of automobile parts.
R1 Sprinkler test: Check the performance of parts contact water droplets;
R2 Sprinkler test: Check the component’s performance under indirect exposure to rain or splash.
S1 Water spray test: Check the performance of parts under direct exposure to rain or splash;
S2 Water spray test: Check the performance of parts under strong water condition.