Deprecated: mysql_connect(): The mysql extension is deprecated and will be removed in the future: use mysqli or PDO instead in /home/hbeonlab/public_html/store/system/database/mysql.php on line 6
Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /home/hbeonlab/public_html/store/system/database/mysql.php:6) in /home/hbeonlab/public_html/store/system/library/session.php on line 11Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /home/hbeonlab/public_html/store/system/database/mysql.php:6) in /home/hbeonlab/public_html/store/system/library/session.php on line 11Warning: Cannot modify header information - headers already sent by (output started at /home/hbeonlab/public_html/store/system/database/mysql.php:6) in /home/hbeonlab/public_html/store/index.php on line 176Warning: Cannot modify header information - headers already sent by (output started at /home/hbeonlab/public_html/store/system/database/mysql.php:6) in /home/hbeonlab/public_html/store/system/library/currency.php on line 45 Numeric Water Level Indicator with Display

Numeric Water Level Indicator with Display

Numeric Water Level Indicator with Display
Brand: HBeonLabs
Product Code: HEUK70
Reward Points: 0
Availability: In Stock
Price: INR 225.00
   - OR -   

The Numeric Water Level Indicator employs a simple mechanism to detect and indicate the water level in a tank or any other container. The level sensing is done by a set of nine probes which are placed at nine different levels on the tank walls (with probe9 to probe1 placed in decreasing order of height, COM probe is placed on the base of the tank). Basically, level9 represents the “tank full” condition while COM represents the “tank empty” condition. 
When the tank is empty, all the inputs to the priority encoder 74HC147 (IC1) remain high, as a result its output also remains high. Since these outputs are inverted and fed as inputs to the decoder driver CD4511 (IC2), all inputs to IC2 are low. The seven segment display correspondingly shows the digit 0, indicating that the tank is empty. 
When the water reaches level1 (but is below level2), pin11 (A0) of IC1 is pulled to ground and the output generated at pin9 (Y0) of IC1 also becomes low. After inversion, the bits fed to the input pins of IC2 are 0001 (DCBA). Hence, the corresponding digit displayed by the seven segment display is 1. The similar mechanism applies to the detection of all the other levels.
When the tank is finally full, all inputs to IC1 become low and all its outputs also go low. This causes all the inputs to IC2 to go high and hence the display shows a 9, thereby indicating a “tank full” condition. 

Write a review

Your Name:


Your Review: Note: HTML is not translated!

Rating: Bad            Good

Enter the code in the box below:



Powered By HBeonLabs
HBeonlabs Technologies Pvt Ltd © 2017