MXA073

This circuit is can be use the stopwatch for competed besides the circuit has
temperature sensor for indicate current temperature. The user can be apply the
circuit following at your want.
FEATURES- Power supply : 12VDC./ max. 150mA.- With built-in circuit driver for connecting to big display not more than 9".- The operation mode is divided into 5 major modes, current time mode, count up
timer mode, count down timer mode (the maximum timer is 23:59:59 hours),
temparature mode, alternating between current time and temperature mode (time
of alternating 5-25 seconds).- Loading : 1A.- With memory back-up battery connector for keeping timing without display
while the electricity is out by using 3 volts button battery or 2 AA battery.- PCB dimensions : 3.90x4.70 inches.
USING THE TERMINAL- 12VDC point is used for connecting to the power supply.- 3V BACKUP point is used for connecting to the 3 volts battery for protecting
memory data. In case of not connecting the 3 volts battery to shorting between the
positive pole and the negative pole of this point.- J1 jumper isn't used.- J2 jumper is used for setting the current time for showing Hour: Minute:Second.
Not jumping is for showing Minute:Second:1/100 Second (when timer is
counting over 1 hour, the timer is showing Hour:Minute:Second).- CA1-CA6 and a-g points are used for connecting to big display not more than 9
inches.- COM and NO point are used to connect loading at your want