As shown, the time relay is designed to replace the JSK1 series of transistor time relays. The circuit includes a buck regulator (+12V), a 555 monostable circuit, and relay control. 555 and RP1, C2 form a one-shot delay circuit, the fixed time td=1.1RP1C2. When the power is turned on, the 2 pin is low, so the 555 position, K2 does not work, when C2 is charged to 2/3Vdo through RP1 3 feet turn low, K2 pulls in, and K2-1, K2-2 are electrically contacted. K1 is set for C2 discharge. Currency Exchange Rate Board 2 Columns
With Φ3, 16*128 matrix display,520×65mm Arabic moving sign
Specifications
display currency and exchange rate, moving sign,Currency Exchange Rate Board 2 Columns Suzhou Ribao Technology Co. Ltd. , https://www.ribaoeurope.com
Include infrared remote controller for updating the display
The magnetic label of currency name and logo is changeable easily.
Display date and time with built-in real time clock
The communication software for PC is included
Durable and elegant aluminum frame
Built-in RS232 interface, the time & exchange rates can be updated through the computer
Front panel – light grey filter Acrylic panel, 2mm thick with printing film
Backup memory to keep the latest exchange rates when the power failed
Customer"s logo and artwork can be printed according to buyer`s requirements
Indicators
7 segment LED display
Columns
2 columns(can be customized according to requirements)
Currencies
6 rows(can be customized according to requirements)
LED Color
Red, Super red, green, yellow
LED Size
0.8 inch(0.5 inch, 1 inch, 1.5 inch selectable)
Digits of LED
7 digits (can be customized according to requirements)
Power supply
110V~240V AC, 50/60Hz