Factory Cheap price TU-1C02 thermal wax actuator for industrial adjustable temperature switch control for Iran Factory
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Factory Cheap price TU-1C02 thermal wax actuator for industrial adjustable temperature switch control for Iran Factory Detail:
1. Operation Principle
The Thermostatic Wax that has been sealed in shell body induces expansion by a given temperature, and inner rubber seal part drives its handspike to move under expansion pressure to realize a transition from thermal energy into mechanical energy. The Thermostatic Wax brings an upward movement to its handspike, and automatic control of various function are realized by use of upward movement of handspike. The return of handspike is accomplished by negative load in a given returned temperature.
2. Characteristic
(1)Small body size, occupied limited space, and its size and structure may be designed in according to the location where needs to work.
(2)Temperature control is reliable and nicety
(3)No shaking and tranquilization in working condition.
(4)The element doesn’t need special maintenance.
(5)Working life is long.
3.Main Technical Parameters
(1)Handspike’s height may be confirmed by drawing and technical parameters
(2)Handspike movement is relatives to the temperature range of the element, and the effective distance range is from 1.5mm to 20 mm.
(3)Temperature control range of thermal wax actuator is between –20 ~ 230℃.
(4)Lag phenomenon is generally 1 ~ 2℃. Friction of each component part and lag of the component part temperature cause a lag phenomenon. Because there is a difference between up and down curve of traveling distance.
(5)Loading force of thermal wax actuator is difference, it depends on its’ shell size.
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How to do a Relay Power Door Lock
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Power door locks have been around for many year, but manufacturers use different wiring schemes. One wiring scheme is resistive rest at ground, which has been used in the past by various manufacturers including Ford Motor Company. Resistive rest at ground is meant to keep both power door lock solenoids grounded, and then a positive pulse is applied when needed.
The power door solenoid or actuator is nothing more than a DC motor type component, which changes the direction of the lock actuation by reverse polarity. In other words, the door lock is actuated by reversing the polarity going to the solenoid. Here is where a relay becomes a very versatile controller of sorts.
Here’s how the circuit works:
Power is fed from the fuse to terminal 85 of the relay coil. This right away tells us that the relay actuation is going to be by ground, which is a lot safer. From the fuse, power is also fed to terminal 87 of the relay. This is a variation of how we normally connect terminal 30, which normally goes to power. But, not here where terminal 30 is used as an output. Terminal 87A is connected, on both relays, to chassis ground.
In this configuration, both relays connect the …. Get the whole story right here in this video…Enjoy…
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This project allows for manual and automatic temperature control of an aluminum block using a thermoelectric (TE) device. A high-side switch IC is used to turn on and off the device, while the direction of the current through the TE unit is controlled by a 12 V DPDT relay in an H-bridge configuration. This results in an ON/OFF temperature controller with the ability to switch between heating and cooling mode. Two LM35 temperature sensors monitor the ambient room temperature and aluminum block temperature.
The LabVIEW program has both a manual and automatic mode. In manual mode, the current through the TE device is controlled with the “TE Current ON/OFF” and “Heat/Cool” buttons on the program’s front panel. In automatic mode, the program tries to maintain the temperature set point entered by the user. It accomplishes this by first determining whether it needs to heat or cool the block based on the difference between the set point and ambient room temperature. Once the program sets the correct current direction, it simply turns on and off the TE device via the high-side switch when it reaches the desired temperature.
This video shows manual mode operation of the unit after 10 minutes in the “Cool” setting. You can see the ice on the aluminum block melt shortly after the program is set to “Heat”. In automatic mode, this setup is capable of achieving temperature control of ±0.5°C from set point.
