BJ ELECTRONICS LTD
TELE 01892615517
Email: sales@bjelectronics.biz
This is a very versatile multipurpose relay board, it can be used either as a time delay relay or as a pulsing relay.
Pic microprocessor controlled.
‘Time start’ can be triggered either by :- supply voltage being applied,
an optional normally open ‘start’ pushbutton switch or a +ve voltage pulse input (wired into i/p terminal).
The relay can be set to :-
‘turn on’ upon activation and ‘turn off’ after time period
or ‘turn off’ upon activation and ‘turn on’ after time period.
The board is polarised and suppressed (voltage reversal and back emf protection ).
The relay is single pole changeover (clean contacts) rated at 10 amp 240v ac / 30vdc
Can be used for a wide range of applications eg hobbies, auto, fire, security.
Suppy voltage is selected by jumper link - 12v or 24v dc
Led illuminates to show relay activated.
Variable time / pulse delay periods are adjusted by the finger adjust pot -
selected by a jumper link for seconds or minutes
Seconds - 0 - 60 seconds Minutes - 0 - 60 minutes
Relay option link -
on>off relay will turn on with board activation then turn off after delay period
off>on relay will turn off with board activation then turn on after delay period.
Time / Pulse select Link
Time -Board is a time delay unit, Pulse -board will pulse at time delay setting.
External ‘start’ pushbutton/switch input (to start time delay periods)
A normally open switch can be wired into the i/p terminals to start time delay.
0 - 60 seconds or 0 - 60 minutes VariableTimer/pulsing relay board with optional ‘start’ switch input.