1173 - Digital Countdown Timer (99 Minute or 999.9 Seconds)
A
simple to operate and useful countdown timer with digital display and relay
output. The circuit is PIC based to ensure accuracy and reliability. It is ideal
for use in automatic machines and in programmable time counting in general.
Simple 3 button operation (START / COUNT / RESET). It is easily programmed with any time between zero and either 99 Minutes 59 Seconds (i.e. counting down in SECONDS) or 999.9 Seconds (counting in TENTHS).
Relay
actives when countdown commences and turns off again when zero is reached. On
reaching zero the display returns to the previously programmed time for repeat
operation or reprogramming as required.
Countdown can be paused and resumed as desired. Relay output can be connected as either NO or NC. SECONDS or TENTHS count mode is easily set using an onboard jumper. A battery backup connection point is provided.
The unit consists of two PCBs, one for the control unit and the second for the display panel.
| Technical Specifications | |
|---|---|
| Power Supply | 9-15Vdc (Order Code PSU445 with connector 778.106) |
| Current Consumption | <100mA relay off (<125mA relay active) |
| Battery Backup | 9V @ <10mA i.e. PP3 battery (Order Code 656.020) |
| Relay Rating | 110Vac/2A, 250Vac/1A |
| Relay Connections | C, NO, NC (Relay FAQ) |
| Board Dimensions | 1 x 40x93mm (display), 1 x 80x93mm (control) |
| Board Connections | Solder Posts (hole spacing will accept screw terminal blocks) |
| Product Format | Electronic Kit (KT
 )
or Assembled (AS)
more |
| Documentation |
 User
Manual |
| Product Code |
Description | Price each exc. VAT (GB Pounds £) | INC. VAT
each 1+ |
Quantity | |
|---|---|---|---|---|---|
| 1+ | 5+ | ||||
1173KT |
Digital Countdown Timer Kit | £38.22 | £31.79 | GB£43.95 | |
| AS1173 | ASSEMBLED Digital Countdown Timer | £46.04 | £38.30 | GB£52.95 | |
Please see our Electronic Timers page for more products like this
