Operation Vedio of Lightning Surge Generator

About Blue Light - Pego Group

1. What is bule light?

Blue light does not refer to blue light, but refers to high-energy short-wave blue light with a wavelength between 400nm and 480nm, which has extremely high penetrating power. The blue light in this wavelength will increase the amount of toxin in the macular area of the eye, the death of light-sensitive cells, the gradual decline of vision, and even induce blind eye disease, which seriously threatens our fundus health. Blue light can be seen everywhere in daily life, but the proportion is generally within the normal health range, and has little effect on vision. Long-term exposure will make people’s eye feels burning, and it will be difficult to recover from the eyes.

2. Where does blue light come from?

Blue light exsists in a large number of artificial light sources such as LED screens, LED lights, and fluorescent lights. For example: mobile phones, computer monitors, fluorescent lights, LCD screens, LEDs, etc.

3. How can we detetor the blue light?

OHSP350B blue light hazard tester is a special equipment to fast detect, measure, screen and compare the blue light at site. Detection: quickly detect anti-blue light effects; Measurement: LCD displays measured values in real time; Screening: screen different anti-blue light functions; Comparison: Differentiate anti-blue light levels.

Salt Spray Test

Salt spray test is a kind of environment test which adopts a salt spray chamber to simulate a salt fog conditions to evaluate the performance of corrosion resistance. The reference standards includes GB/T2423.17, IEC60068-2-11, ISO4628-3, ASTM B117, JIS-Z2371, JIS-G3141, GJB 150.1, MIL-STD-810F, MIL-STD-883E and etc.

Corrosion is a damage or metamorphism caused by environment, most of corrosion happens under the atmospheric environment, the corrosion factors includes oxygen, humidity, temperature change and pollution, salt-spray corrosion is a usual and most destructive atmospheric corrosion, the corrosion composition is Nacl, it comes from ocean and inland saline.

The salt spray test includes neutral salt spray test (NSS), acid salt spray test (ASS) and copper accelerated acetic acid salt spray test (CASS):

1. NSS test is the most widely test method, it adopts 5% salt water and the solution’s PH value is around 6 to 7.

2. ASS test is developed base on NSS, it requires to add glacial acetic acid into the 5% salt water, and the solution’s PH value is around 3, the corrosion speed is 3 times faster than NSS test.

3. CASS test is the newly fast test method, it requires to add a bit of Cucl, the corrosion speed is 8 times faster than NSS test.

The technical specification includes solution concentration, R.H., temperature, test time, storage time, test period, fog quantity and PH value.

Salt spray test chamber made by Pego has good quality, the material of the body adopts PVC plastic board with features of aging resistance and corrosion resistance; the lid adopts full transparent acrylic board with feature of shock resistance and freely to observe the test procession; Saturated air barrel adopts SUS304 board to provide humidity and temperature according to Henry law. Contact us to get the quotation.

The Function of Hand Held Spray Nozzle for IPX3 and IPX4

Spray nozzle is a kind of equipment for IPX3 and IPX4 testing, differs from oscillating tube, the water sprays from round sharp nozzle.

The main parts for the spray nozzle are nozzle and baffle. The material of the nozzle is brass for the purpose of corrosion resistance and precision. There are totally 121 holes, 1 center hole, 2 inner circles have totally 24 holes (12 holes/circle), the interval is 150, 4 outer circles have totally 96 holes (24 holes/circle), the interval is 300. The material of the baffle is aluminum, and it is mobilizable in order to control the watering area. When the nozzle is covered, it means IPX3 testing, when the nozzle is uncovered, it means IPX4 testing.  

Spray nozzle is usually applied to the samples with big enclosures, it is regarded as the auxiliary equipment for oscillating tube rain test. The oscillating tube is not enough to reach the big equipment, so a hand-held device is needed. The pressure should keep in the 50~150kpa during the test, the test time depends on the enclosure area, 1SQM/min, at least 5 min.

Application: cabinet, washing machine and etc. Pego has full sets of waterproof test equipment, please contact to get more information. 

What are the commonly used waterproof test machine?

For most enterprises, especially the enterprises relatives to electronics, IP grade test is a must to adapt to the customers demands. But how to choose a suitable equipment? According to our experience, we recommend the following equipment:

IPX1 and IPX2 vertical drip test equipment: applied to simulate the rain and 15⁰ rain conditions. Application scope: mobile phone, tablet PC, camera, voice box, outdoor cabinet and etc. Generally, the producer would be customized the drip board according to sample size. There are three types of drip box, box type, wall-hung type and frame type.

IPX3 and IPX4 oscillating tube: Applied to test the protection performance against the raining condition at the angle of 60⁰ and 180⁰. Application scope: water heater, washing machine, auto parts, computer, transformer, LED luminaire and etc. The oscillating tube has 8 sizes includes 200mm, 400mm, 600mm, 800mm, 1000mm, 1200mm, 1400mm and 1600mm. There are two types, box type and double-pillar type.

IPX5 and IPX6 Jet nozzles: Applied to test the protection performance against the spray water or high pressure spray water. Application scope: outdoor lighting fixture, military products and etc. There are 2 types includes box type and split type.

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IPX7 Temporary immersion tank: Applied to test the equipment under the condition of  immersion tank to simulate the equipment under the water of more than 1.2m depth. Application scope: underwater camera, intelligent electronic equipment, underwater monitor and etc. There are 2 types according to the material, includes stainless steel type and stalinite type.

IPX8 continue immersion tank: harsher than IPX7. Mainly applied to the products work under the 1.2m or deeper water. Application scope: diving lamp, diving watch, diving headset, diving camera, diving monitor and etc. As the pressure is big, the tank adopts special pressure bearing device. Customized accept: 10m, 30m, 50m, 60m, 80m, 100m and etc.

Which is the better, constant temperature humidity chamber or high low temperature chamber

There are three kinds of environment test chambers for temperature and humidity includes constant temperature and humidity test chamber, thermal shock test chamber and high-low temperature test chamber.

Generally, the lab only do the high temperature and low temperature test, but sometimes, it will also request to do the humidity test, in this case, the constant temperature and humidity test chamber is a must equipment.

The working principles of constant temperature humidity chamber and high-low temperature chamber are the same, and the price has no much difference, so usually we will recommend the temperature and humidity test chamber to our customers.

The specification of the temperature and humidity test chamber as below:

1. Adopts TIME880 controller made by Korea

2.Time setting: 0-999h, with touch screen. Freely set up the temperature and humidity condition.

3. Failure warning and trouble shooting.

4. Temperature sensor adopts DIN PT-100Ω

5. Temperature controller adopts P.I.D.+S.S.R.

6. Alerting if any error occurred during the operation and setting.

7. Remote to monitor and record.

8. Adopts Micro humidification system with two pieces of  magnetic reed switch.

9. The Water barrel is made by stainless steel.

10. Humidity and dry system are independence.

11. The water shall be pure water or RO water.

Pego Tester is engaged in all kinds of environment test equipment, like humidity temperature test chamber, dust chamber, IP waterproof test chamber, vibration machine, tensile equipment, spring impact hammer, pendulum impact hammer and etc. Welcome to contact our sales to get our information.