Up to 9,999 minute 4-digit simple LED coin mechanism timer with open collector output. The stopped board displays the amount of minutes currently in credit. Running timer shows whole minutes credit remaining and the end decimal point flashes every second to indicate countdown is in progress.
Each time the STOP input is closed the countdown time credit increases by 1 minute (both when the timer is stopped or already counting down).
START input starts the countdown and the open collector output turns on. On timeout the output turns off and the the display and countdown time resets to zero.
Only 2 LED digits light when countdown time is less then 100. The other digits become active if count increases above 99 and 999.
A hardware RESET input allows the timer to be manually stopped and reset to zero. Current countdown time is stored in volatile memory so will be lost in the event of a power outage.
Connections: DC IN, RESET, OUTPUT, STOP and START are brought out to a 10-way header strip for easy connection. START and STOP buttons are also provided on the board.Custom Firmware Design Service
If you would like the timer to function differently please Contact Us with your requirements.Specifications
|Supply||9...15V dc |
e.g. Order Code 660.446UK with connector 777.001UK
|Current||30 - 50mA max.|
|Inputs||Start / Stop / Reset (Active low - see documentation)|
|Output Type||Open collector NPN transistor, 100mA @ 30V max|
(see Help Sheet)
|Time Delay||1 - 9,999 Minutes|
|Display||4-digit 7-segment with decimal point, 14mm RED LED|
|Accuracy||+/- 1.8 seconds / hour|
|Settings memory||N/A - settings are lost when power is removed|
|Board Dimensions||~ 51 x 66 x 12 mm (excluding header pins)|
|Connections||10 pin SIL header|
|Product Formats||SELF-ASSEMBLY Electronic Kit (KT) or|
PRE-ASSEMBLED Electronic Module (AS) Product Formats Info
|Documentation||3148T50M User Manual|