(1) Indoor environment: Most of the main factors that corrode metals in the air are oxygen. However, important physical corrosion occurs when the air has a certain relative humidity (so-called critical humidity). Generally, the critical humidity is 60% to 70%, and the greater the critical humidity, the greater the corrosion effect. In the living and working rooms, the relative humidity in summer is high, so the corrosion is greater than in winter. In mountainous and marine areas, indoor relative humidity is mostly higher than flat inland, and corrosion is relatively large. If there is no particularly corrosive component in the air, the amount of corrosion is generally small. Therefore, the corrosive effect will be due to the increase of dust, gaseous impurities in the air, especially sulfur dioxide, acid mist (the production of eight sulfur-containing organic compounds from the combustion gas (eight kitchens in the kitchen and dining room (mainly toilets, woodworking fields), etc. The increase in content is exacerbated. More severe corrosion may be caused by contact between the part and various objects, such as contact with sweat, wood (organic acids or wetting agents), paper (acids, alkalis, chlorides and sulfides). (2) Outdoor environment: The situation of corrosion is basically similar to that of indoor environment. The main difference is that most of the outdoor environment will have more impurities and atmospheric dust. Rainwater, on the one hand, wets the metal, thereby promoting corrosion; on the other hand, it may also accelerate the washing of the corrosive components, thereby reducing the corrosion effect. The main corrosive factors in the outdoor environment originate from flue gases, which increase the amount of sulfide in the air, especially sulfur dioxide, sulfuric acid and ammonium sulfate. Therefore, atmospheric corrosion is generally greater in industrial areas than in urban areas, while urban areas are larger than rural areas. In the winter, the sulfur content in residential areas is significantly higher than in summer. (3) Marine climate: On the coast, most have high relative humidity (above 80^) and high salt content, which promotes enhanced corrosion. However, the risk of corrosion is only a few thousand miles along the coast, and there are significant differences in the interior of the area. Corrosion can also be accelerated if the object is directly exposed to fine water mist in the sea area. In order to overcome the phenomenon of metal corrosion in the production of life, some metal surface treatment methods have been used to prevent metal corrosion - electroplating. Electroplating is a process in which a metal film is adhered to the surface of a metal by electrolysis to prevent corrosion of the metal, and at the same time, the hardness, wear resistance and electrical conductivity of the metal are improved.
Instruction Manual
1. Features
Clock display, 10 sets of adjustable timed power control, randomized power control, manual switch and optional DST setup.
2. First time charging
This Timer contains a rechargeable battery. It is normal that the new/old model runs out of battery if it wasn`t being charged for a long period of time. In this case, the screen will not turn on.
To charge : simply plug the timer to a power outlet. The charging time should take at least 15 minutes.
If the screen doesn`t light up or displays garbled characters, simply reboot the system by pressing the [RESET" button.
3. Set clock
Hold [CLOCK" button and [WEEK" button to adjust week.
Hold [CLOCK" button and [HOUR" button to adjust hour.
Hold [CLOCK" button and [MINUTE" button to adjust minute.
Hold [CLOCK" button and [TIMER" button to select 12 hour/24 hour display.
Hold [CLOCK" button and [ON/AUTO/OFF" button to enable/disable DST (daylight-saving-time).
4. Set timer
Press [TIMER" button, select and set timer. Setting rotation : 1on, 1off, 2on, 2off, ...... , 10on, 10off.
Press [HOUR" button to set hour for timer.
Press [MIN" button to set minute for timer.
Press [WEEK" button to set weekday for timer. Multiple weekdays can be selected. ex: if selected [MO", the timer will only apply on every Monday; if selected [ MO, WE, FR", the timer will apply on every Monday, Wednesday and Friday.
Press [RES/RCL" button to cancel the selected on or off timer. The screen will show "-- -- : -- --" , the timer is canceled.
Press [RES/RCL" button again to reactivate the timer.
When timers are set, press [CLOCK" to quit timer setting and return to clock.
5. Random function
Press [RANDOM" button to activate random function, press again to cancel function.
System only runs random function when [AUTO" is on.
Random function will automatically start the timer from 2 to 32 minutes after the setting.
ex : if timer 1on was set to 19:30 with the random function on, the timer will activate randomly between 19:33 to 20:03.
if timer 1off was set to 23:00 with the random function on, the timer will activate randomly between 23:02 to 23:32.
To avoid overlapping, make sure to leave a minimum of 31 minutes gap between different sets of timer.
6. Manual control
Displayed features:
ON : socket turns on.
OFF : socket turns off.
AUTO : socket turns on/off automatically via timer.
Manual ON setting
Press [ON/AUTO/OFF" button to switch from [AUTO" to [ON".
This mode allows socket of the device to power up. Power indicator will light up.
Manual OFF setting
Press [ON/AUTO/OFF" button to switch from [AUTO" to [OFF".
This mode turns socket of the device off. Power indicators will turn off.
7. Electrical parameters
Operating voltage : 230VAC
Battery : NiMh 1.2V
Power consumption : < 0.9W
Response time : 1 minute
Power output : 230VAC/16A/3680W
Q&A
Q: Why won`t my timer turn on?
A: It`s out of battery, you can charge the timer by plugging onto any power outlet. Charge the device for at least 15 minutes. Then press [RESET " button to reset the device.
Q: Can I set seconds of the timer?
A: No, the smallest time unit is minute.
Q: Does my timer keeps old settings without being plugged onto a power outlet?
A: Yes, the timer has an internal battery, it allows the timer to save settings without a power outlet.
Q: Is the battery rechargeable?
A: Yes, the battery is rechargeable. We recommend to charge it for 4 hours so the battery is fully charged.
Q: Does the timer needs internet connection?
A: The timer does not need internet.
Q: Does the screen have back light function?
A: It doesn`t support back light.
digital timer, digital timer socket, electronic timer socket, timer socket NINGBO COWELL ELECTRONICS & TECHNOLOGY CO., LTD , https://www.cowellsocket.com
Electroplating makes metal corrosion difficult
Metal materials are damaged by the action of the surrounding medium, called metal corrosion, which is the most common form of corrosion. The corrosion effects of different metals in different environmental conditions are different. The general product use environment is roughly divided into indoor environment, outdoor environment and marine climate environment.