4 Digit Photographic Countdown Timer Board (60 - 900 Seconds) 4 Digit Photographic Countdown Timer Board (60 - 900 Seconds) Quasar Electronics 4-digit photographic countdown timer board with 6 selectable preset times from 60 to 900 seconds. Start, Stop and Reset controls. Displays time remaining in Seconds. 2 Second output pulse on completion... Electronics > Circuit Components > Printed Circuit Boards > Development Boards 3148T1KT 3148T1KT 23.95 Quasar Electronics Limited

4 Digit Photographic Countdown Timer Board (60 - 900 Seconds)

AS3148T1KT - 4 Digit Photographic Countdown Timer Board (60 - 900 Seconds)
Pre-Assembled and Kit versions availableMade in Britain

4-digit photographic countdown timer board with 6 selectable preset times from 60 to 900 seconds. Start, Stop and Reset controls. Displays time remaining in seconds and tenths of a second. At the end of the coundown the open collector output pulses low for 2 seconds and the display returns to the last set preset time.

On-board START and STOP buttons are also bought out to the 10-way header for use with your own external volt-free contact closures (button, relay, etc.)

The controls are:

  • START : Starts the countdown from the displayed preset time (defaults to 60.0 seconds on power-up)
  • STOP (Timer Not Running) : Steps through the preset time selection
  • STOP (Timer Running): Freezes display when pressed. Resets timer to last selected preset time when released
  • RESET : at any time you can reset the timer by shorting the hardware reset pins together.

The board has an active low open collector transistor output (NPN 100mA, 30V max.). This can be used with to drive our 3156 relay board or the 3141 delay timer board.

Connections: DC IN, RESET, OUTPUT, STOP and START are brought out to a 10-way header strip for easy connection.

Custom Firmware Design Service

If you would like the timer to function differently please Contact Us with your requirements.

Specifications
Supply9...15V dc
e.g. Order Code 660.446UK with connector 777.001UK
Current30 - 50mA max.
Preset Times60, 90, 120, 300, 600 and 900 seconds
Timing resolution1/10 second
InputsStart / Stop / Reset (Active low - see documentation)
Output TypeOpen collector NPN transistor 100mA, 30V max.
(see Help Sheet)
Display4-digit 7-segment with decimal point, 14mm RED LED
Accuracy+/- 1.8 seconds / hour
Board Dimensions~ 51 x 66 x 12 mm (excluding header pins)
Connections10 pin SIL header
Product FormatsSELF-ASSEMBLY Electronic Kit (KT) or
PRE-ASSEMBLED Electronic Module (AS) Product Formats Info
Documentation3148T1 User Manual
Your Total:

AS3148T1KT - 4 Digit Photographic Countdown Timer Board (60 - 900 Seconds) Selection

SELF-ASSEMBLY 4 Digit Photographic Timer KIT (60 - 900 Seconds)
Quasar 3148T1KT - SELF-ASSEMBLY 4 Digit Photographic Timer KIT (60 - 900 Seconds)
£21.63 £19.96 Exc VAT, £23.95 Inc VAT | In Stock (Our UK Warehouse)
PRE-ASSEMBLED 4 Digit Photographic Timer Board (60 - 900 Seconds)
Quasar AS3148T1 - PRE-ASSEMBLED 4 Digit Photographic Timer Board (60 - 900 Seconds)
£29.18 £24.96 Exc VAT, £29.95 Inc VAT | In Stock (Our UK Warehouse)
PRE-ASSEMBLED 4 Digit Photographic Timer Board (15,30,45,60,75,0 Second Presets)
Quasar AS3148T11 - PRE-ASSEMBLED 4 Digit Photographic Timer Board (15,30,45,60,75,0 Second Presets)
£39.96 £24.96 Exc VAT, £29.95 Inc VAT | In Stock (Our UK Warehouse)

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