The operation manual of salt spray chamber include : Machine structure description, Pre-test operation steps, Maintenance and troubleshooting explanation. Please read the operation manual carefully before you operate the salt spray chamber. we believe this operation manual will make your salt spray test chamber test work efficiently. When you have read this operation manual of salt spray chamber, Please keep it in a clean place so that you can read it at any time.
Salt spray chamber presentation of operation manual: The salt spray test is specially designed for the surface of various materials. After the anti-corrosion treatment of paint, paint, electroplating, anodizing, anti-rust oil, etc., the corrosion resistance of the product is tested. It is widely used in hardware, electroplating, electronics, chemical, automotive, aerospace, aerospace, communications and other industries. It simulates the corrosion of marine materials in the materials and coatings of products to analyse the performance of the samples under specific environmental conditions and evaluation.
| ● | The relevant work should be prepared during the salt spray chamber installation process. Guide you the preparation when your engineer doing the installation process when this salt spray chamber arrived at your factory address. | Equipment Placement |
| ● | When installing the equipment, pay attention to adjusting the height of each foot to keep the equipment level. The installation site should pay attention to the necessary space for equipment operation, maintenance and repair. Try to install it near the window to facilitate the mist spray tester to remove the fog. | |
| ● | The installation position of the machine, please avoid direct sunlight, so as not to affect the test conditions. | |
| ● | The installation position of the machine should be as close as possible to other electrical equipment, precision instruments or flammable materials to avoid danger. | |
| ● | Keep the surroundings clean and tidy, The place where you will park this salt spray chamber. | |
| ● | Prepare an air compressor with a power of 2.2KW (3HP) or more, connect an 8mm diameter air pipe, and insert the quick-connect valve of the back pressure regulating valve of the salt spray machine. Observe the pressure of the back pressure regulating valve to ensure the pressure is 2kg/cm2. If conditions permit, please connect an oil-water separator to ensure the purity of the gas source. | Gas Source Preparation |
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| ● | Pressure gauge photo comment: Back pressure gauge, inner ring pressure is adjusted to the number 2 | |
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| ● | The spray pressure is maintained at 1kg/cm2, which is the pressure of the front regulator (which must be displayed in the spray state). The pressure gauge is as shown: | |
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| ● | Pressure regulating valve and pressure gauge photo comment: Front pressure regulating valve and pressure gauge, inner ring pressure is adjusted to the number 1 | |
| ● | Prepare enough purified water or distilled water. The salt spray machine test chamber, pressure tank, salt water chamber and sealed water tank need to add water. The test chamber, pressure tank and sealed water tank are all filled with pure water. The whole salt spray test machine only has salt water. The room needs to be added with a prepared saline test solution. | Water Source Preparation |
| ● | The salt sprayer is a very important part. Please be sure to connect the mist pipe provided by our company to the outside, or prepare a suitable exhaust pipe (non-metallic material). The diameter of the mist is 50mm. Installation should be parallel or downward installation. Do not install coils or U-shaped pipes. This may result in the salt spray not being removed, which may affect the test results. | Installation of the Exhaust Pipe |
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| ● | Drain outlet for fogs, Photo comment: Exhaust the mist, please be sure to connect to the outside as required. |
| ● | Voltage | AC 220V, 50Hz | Power Consumption |
| ● | Power | 3.0 KW | |
| ● | Operating Ambient Temperature | 0 ° C ~ 35 ° C | Working Environment |
| ● | Ambient Humidity Used | ≤ 85% RH; | |
| ● | Laboratory Temperature Range | +35 ° C ~ +50 ° C | Technical Parameters |
| ● | Saturated Barrel Temperature | 47 ° C – 63 ° C | |
| ● | Brine Temperature | Preheating by laboratory temperature | |
| ● | Temperature Uniformity | ≤ ± 2 ° C | |
| ● | Temperature Fluctuation | ≤±0.1°C | |
| ● | Test Time | 0-999 H, M adjustable | |
| ● | Settlement | 1-2ml/80cm2/h | |
| ● | Spray Method | Continuous spray, stop automatically at time |
| ● | Insert the prepared air supply into the back pressure regulator of the salt sprayer and adjust the pressure to 2kg/cm2. | Air Source Connect |
| ● | Add Clean Water to the Test Room: Turn on the power supply and observe the low water level indicator in the test chamber (low water level light on the left side of the panel). If the indicator light is on, the test room is short of water. | Add Water Please |
| ● | Open the upper cover of the salt spray chamber and directly pour the prepared pure water into the box until the low water level indicator light in the test chamber is extinguished (indicating that the water level in the test chamber is full). Note that the water should not be sprinkled into the salt water preheating tank during the water addition. (located below the spray tower). | |
| ● | Add Water to the Pressure Tank: Pay attention to the low water level indicator of the pressure tank (low water level light on the right side of the panel). If the indicator light is on, the test room is short of water. | |
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| ● | There is a gray funnel-shaped water inlet on the back of the salt spray machine, as above picture mentioned. | |
| ● | Open the red valve of the water inlet (please pay attention to the direction of rotation, otherwise it will be broken), slowly add the prepared pure water into the funnel. Due to the small diameter, the underwater flow speed is slow, please join slowly and patiently. Until the pressure tank low water level indicator is off, the pressure tank water level has been increased. | |
| ● | Add Water to the Sealed Water Tank: add appropriate amount of pure water in the water tank around the salt spray cabinet cover to prevent the salt spray from leaking out from the surroundings when the instrument is working. | |
| ● | It is recommended to prepare 500g of analytically pure sodium chloride per bottle for the preparation of the test solution. | Salt Water Blending and Infusion |
| ● | Take 9500ML of purified water from our 5000ML rust-proof plastic drum, pour it into a larger clean plastic bucket, add 500g of analytically pure sodium chloride, stir until completely melted. At this time, the brine concentration ratio is 5%. | |
| ● | Slowly pour into the “test drug inlet”. At this point the brine will gradually flow into the brine preheating tank in the test chamber. | |
| ● | Analytical pure sodium chloride of other quality, please follow the concentration of 5% by yourself. Than configuration | |
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| ● | During the operation of the salt spray chamber, there may be a water shortage alarm in the test room and pressure tank, which prompts us to timely perform the hydration work of the corresponding part of the instrument. When the instrument is out of water, it will automatically stop working to protect the instrument itself. Will dry, normal working status as shown on the right: | Remark and Notes |
| ● | Please close the “Operation” button during the watering process. The watering method is exactly the same as above. After the water level is fully added (all the low water level indicators are off), then the “Operation” button is turned on and the work is resumed. Since our time relay has automatic Power failure memory function, please don’t worry that the test time before is cleared. | |
| ● | When the salt water is missing, we need to open the small lid of the “test drug inlet” for observation. If the salt water is missing, re-distribute the salt water and ensure that the salt water is always maintained during the work. | |
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| ● | The position of the sample in the salt spray chamber during the test shall meet the following conditions: | Placement of Test Samples |
| ● | Prior to the test, the test sample must be visually inspected and tested for performance of other items in accordance with relevant standards. The sample surface must be clean, free of oil, no temporary protective layer and other ills. | |
| ● | Unless otherwise specified, the specimen shall be supported or suspended, with an angle from 15 to 30 degrees from the longitudinal direction, preferably such that most of the surface being tested is parallel to the mainstream of the salt spray through the salt spray chamber. | |
| ● | Specimens shall not come into contact with each other or with any metallic material or any material that will act as a fuse. | |
| ● | Each specimen shall be in an unobstructed position in contact with the salt spray. | |
| ● | The salt solution of each sample shall not drip onto another sample. | |
| ● | Control the internal temperature of the test chamber (pressure tank), press “<” to move to the number to be adjusted. At this time, there will be a small dot flashing in the lower right corner of the adjustment number. Press “△” or “▽” to adjust The size of the number. | Temperature, Time Setting |
| ● | Set the laboratory temperature to 35 degrees Celsius | |
| ● | Set the pressure tank temperature to 47 degrees Celsius | |
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| ● | This temperature control table can be used for temperature setting as follows: In the initial screen, long press the “<” button, wait for the screen to change, press the “▽” button to switch to “ON”, then press the leftmost circle button to confirm, wait for the temperature to self-tune, the screen will automatically Stop flashing. | |
| ● | To stop the setting, press and hold the “<” button and press “△” to switch to “OFF”. Close it. | |
| ● | There are two timers on the panel, which are located below the temperature control table. The timer on the left is the time of the test. The setting method is toggle mode. The salt spray test is usually in hours (h). We will count the left side. The time unit of the device is set to “0.1h”. For example, if we want to set up a 72-hour test, then we will dial the first four digits of the time unit as: 0720; the timer time is the main reference parameter for our test. as the picture shows: | |
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| ● | The above photo mentioned is a black timer that records all of the instrument’s usage time and does not need to be set. | |
| ● | In the above operation, we have opened the “Power” and “Operation” buttons, and the water levels have been added, the sample is placed in place, and the temperature and time have been set. At this point we can open the “spray” and “time” buttons, the salt spray machine officially entered the working state. | Switch Button Description: |
| ● | When the test time is completed, the instrument will automatically shut down, and the “End” indicator will light up. After the salt spray has completely settled, the sample can be taken out for subsequent testing and comparative analysis. | |
| ● | If the salt spray chamber is not used for a long time, please turn off all the switch buttons and drain all the water in the salt spray machine, including the test chamber, pressure tank, salt water chamber and sealed water tank. |
| ● | When you have finished the test work, What the work you have to do｜Description of The Operation Steps After The Test: | Sample Processing |
| ● | Post-Test Treatment: After the spray test is completed, when opening the top cover of the test chamber, do not drop the solution carefully and carefully take out the sample. Do not damage the main surface, and quickly wash away the adhered salt particles with water below 38 °C, using a brush or The sponge removes corrosion products other than corrosion points and immediately dries them with clean compressed air. | |
| ● | Laboratory Drainage: Open the red drain valve in the picture (observed on the back, located in the lower right corner of the back of the machine). | Water Drain |
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| ● | Pressure Tank Drainage: located at the bottom of the electric box, there is a copper valve, and a basin or other lower edge container is placed underneath to discharge the waste water from the pressure tank (at least once every 15 days). | |
| ● | Water Tank Drain: Remove the silicone plug from the picture and the brine will drain directly from the back drain. Located below the spray tower | |
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| ● | The maximum pressure of the rear pressure regulating valve of the salt spray chamber is 2.5kg/cm2 (normally 2.0kg/cm2). Do not adjust the pressure too much, otherwise the pipe may be damaged. | Maintenance |
| ● | The maximum pressure of the front pressure regulating valve is adjusted to 1.5kg/cm2 (normally 1.0kg/cm2), and the pressure is too large to damage the pipe. | |
| ● | If there is automatic watering, the manual watering switch must be turned off. The pressure tank must be closed after adding water, otherwise the water in the pressure tank will be sprayed out from the manual watering port. | |
| ● | Note if the brine tank is short of water. If the brine tank is found to be deficient in water, add salt water immediately. | |
| ● | Do not leave the salt spray chamber outdoors and avoid direct sunlight. | |
| ● | The salt spray chamber which you have ordered, Please handle with care. | |
| ● | If the spray nozzle is not continuous or the spray volume is insufficient, please check if the air pressure is normal; check whether the small holes in the front section of the two glass tubes of the nozzle are on the same line; check whether the nozzle is unblocked. | |
| ● | Please clean the salt spray chamber once or twice a month to ensure the salt spray box is clean and reduce the test error. The water in the pressure tank is guaranteed to be at least cleaned every 15 days. | |
| ● | Place the collecting funnel horizontally for accurate sample collection, and note that the water drops attached to the pipe wall and the funnel are tapped into the measuring cylinder to minimize the test error. | |
| ● | When you will not used the salt spray chamber for a long time, be sure to drain all the water in the salt spray chamber. | |
| ● | The electrical plate is made of precision electronic components to prevent water, salt water or other liquids from entering the interior. It is recommended to put a seal on the gap around the electrical box. | |
| ● | Frequently clean the scale generated on the heating tube of the test chamber and prolong the life of the heating tube. as below picture shows: | |
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| ● | Check for lack of water, lack of water, please make up | The temperature of the test chamber or pressure tank is not heated. | Troubleshooting |
| ● | Whether the heating tube burns the ring, replace the heating tube, contact us. | ||
| ● | Relay failure, contact the supplier of Wewon Environmental Chambers Co., Ltd. | ||
| ● | Pay attention to the time unit, one time unit will jump once | The Timer Does Not Work | |
| ● | The laboratory or pressure tank is short of water. Please replenish water when there is water shortage | ||
| ● | No display at all, please contact the supplier of Wewon Environmental Chambers Co., Ltd. | ||
| ● | In the spray state, please check whether the pressure gauge has pressure. If the pressure gauges are pressured before and after, then the nozzle is clogged, the nozzle is removed, the thin copper wire is used to clear the nozzle from the nozzle, and the gas source is used from the nozzle tip. Blow until the blockage is cleared or the nozzle is replaced directly. Since the nozzle is made of quartz glass, please take it lightly! | Salt spray chamber don’t spray fogs | |
| ● | The salt water tank lacks salt water, supplemented with brine | ||
| ● | If there is pressure on the back pressure gauge, after opening the “spray” button, but there is no pressure on the front pressure gauge, please contact us. | ||
| ● | The temperature control table is damaged, and the temperature control table is replaced. | Sat spray chamber (pressure tank) cannot reach the set temperature | |
| ● | The heating tube is damaged, replace the heating tube | ||
| ● | The water level device is damaged and the water level is replaced. | ||
| ● | The test room (pressure tank) temperature controller temperature is lower than the ambient temperature | ||
| ● | Laboratory safety protection switch temperature setting is too low | ||
| ● | Controller of salt spray chamber is failure |
