Velleman projects K8015 Assembly instructions - Manual (Page 9)

9
Operating mode
Non-retrigger-
able timer
Push to turn on. After pre-set time has elapsed, load will turn off. Pushing the button during on-time
has no effect. Load will turn off when pushbutton is held down and time elapses. Applications :
General timing.
Turn-on delay
Turn on delay starts when button is pushed. When time elapses, load is turned on until
button is released. Applications : Prevent cycling of light sources operated by a motion
detector on porches, front doors, driveways, …
Timer with
early re-trigger
prevention
turn on with delay1*. When time elapses, load is turned off and delay2* is enabled. Load
cannot be turned on again before delay2 elapses. Continuous pushing will not switch on the
load when delay2 elapses. Applications : Prohibit continuous operation of heating, airco, TV,
spa, …
Turn-off delay
Push to turn on load. When button is released, timer is started. When time elapses, load is
turned off. Repeated push during on-time restarts timer. Applications : Allow a pump or fan to
remain on for a while after a sensor detects pre-set level, to prevent cycling.
Interval timer
As long as the button is pushed, the load will be turned on during delay1*, and turned off during
delay2* Applications : Lawn sprinklers, pool pumps, compressor dehydration, ventilation, defrost-
ing,
Blinking circuit
As long as the button is pushed, the load is turned on and off with a fixed frequency of 1Hz.
Applications : warning lights, buzzers, …