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Wednesday, November 30, 2011

LM35 Temperature Sensor Modules for Zelio Smart Relay


Some types of Zelio Smart-Relay is equipped with an analog input 0-10V DC, one of which is Zelio SR3B101BD. With the analog input, then the Zelio can accept analog input voltage of the transducer. Thus, Zelio can be used to control analog output system based on the condition of a sensor.
The picture is a LM35 Temperature Sensor Modules for Zelio PLC or a ready-made. This module has a voltage output 0-10V for the measurement of the temperature range 0 ° C - 100 ° C. This module requires a supply voltage between 12-24V DC. Therefore it is suitable for use with Zelio Smart Relay.
LM35 Temperature Sensor Module can be used for applications such as room temperature controller, temperature controller greenhouses, or for experiments in the laboratory.
Here is a sample program that serves Zelio SR3B101BD temperature display on Zelio display and control the turn on the relay when the temperature is more than equal to 50 ° C.



Pictured above is a simulation result when the temperature of 29 ° C. Output Q4 is OFF.



Pictured above is a simulation result when the temperature of 50 ° C. Output Q4 turned ON.
IB-IE is the analog input to 8-bit ADC that converts the analog input 0-10V into digital 0-255. GAIN component in this program to convert function (mapping) data 0-255 to 0-100 ° C. And as a comparator used to compare the component input numeric constants 50. The program also displays temperature data in the display Zelio.

                          Examples of these programs you can download using the link below.
Sensor modules for Zelio LM35 is available in the form of a series of finished and ready-print PCB layout. If interested please visit the website: http://telinks.ds4a.com. The module is equipped with a schematic and an explanation and how calibration. In addition the module also comes with sample applications that can be tailored to your needs.
This module can also be applied to microcontroller-based systems, both for AT89S51 microcontroller-based system equipped with a series of ADC, or AVR microcontroller based systems.

3 comments:

  1. I Think LM35 should be can connect directly to Zelio, no need add pcb,

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    Replies
    1. but writer want to make 0-10 volt as 0-100 celcius
      default lm35 is 0-1v as 0-100volt

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