LCD (Trim Pot)

Posted on July 13th, 2010 by Ron Gibson


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Presence of LCD is an attractive feature of iwatch Access Control Panel. LCD can be connected to Control Panel with the help of a flat cable. The LCD is used to display Greeting Message or any important Instruction to users. An additional feature is provided on the iWatch Access Control Panel and that is the presence of Trim Pot. The Trim Pot is used to Increase or decrease the Display intensity. It regulates the intensity of light emitting from the LCD. It helps in a better visibility of Message displayed on the LCD with respect to the surrounding environmental condition. It is mounted on the margin of Panel near the Relay number 3. It can be easily adjusted with the help of a small screwdriver.

Fig: Trim Pot

 Trim Pot is a small Semiconductor which is basically a variable Resistor or Capacitor and may need to be adjusted when the equipment is serviced. Unlike many other variable controls, trimmers are mounted directly on circuit boards, turned with a small screwdriver and are very easy to handle.

SPECIFICATION:

Physical Characteristics:

Type : 3266

Dimension :  ¼”

Torque : 3.0 oz-in. max.

Mechanical Stops : Wiper idles

Terminals : Solderable pins

Weight : 0.015 oz.

Standard Resistance Range : 0 ohms to 1 megohm.

Resistance Tolerance : ±10 % std.

Absolute Minimum Resistance : 1 % or 2 ohms max.

Contact Resistance Variation : 3.0 % or 3 ohms max.

Adjustability:

 Voltage :  ±0.02 %

 Resistance : ±0.05 %

Resolution : Infinite.

Insulation Resistance : 500 vdc. 1,000 megaohms min.



17 Responses to “LCD (Trim Pot)”

  1. Fannie Taintor Says:

    Thanks for the article it was really informative and exactly what I was searching for.

  2. Ron Gibson Says:

    your welcome.. let me tell you one thing that, I have posted one more blog specially for you. Check the below given link, it will help you to understand the advantage of Trim Pot as well as it will also provide indepth knowledge about the working of LCD.
    http://iwatchsystems.com/technical/2010/07/16/lcd-display/

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  4. Andy Smith Says:

    Thanks for appreciting our Technical Views. But the best is yet to come from Ron Gibson… I hope you will see them very soon.

  5. Ron Gibson Says:

    Thanks a lot for your appreciation. I will keep on posting such type of informative blogs. I think that you are intrested in Semiconductors, wait for few days, I will be posting detailed information about some other vital semiconductors on Printed Circuit Board which are used in security systems.
    Andy: Yeah, I will be posting more supplemented blog on LCD (Trim Pot), Thanks for encouraging me.
    Cheers for iWatch Technical Team (Carl Dawson, Andy Smith, Vince Brown and Me-Ron Gibson)

  6. Ron Gibson Says:

    Thanks. keep on visiting the Blog..

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  9. Ron Gibson Says:

    hi. Your Welcome. Thanks..
    You are invited to post your suggestion and comments on this blog.
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  12. Ron Gibson Says:

    Thanks a lot.
    You can also join us on few social networking sites like:
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  13. Ron Gibson Says:

    Thanks.
    You can also join us on few social networking sites like:
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    http://www.facebook.com/profile.php?id=100001194241924
    http://www.linkedin.com/in/iwatchsystems

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