Velleman-projects K8008 Assembly instructions Manuel d'utilisateur télécharger pdf (Page 10)

Operation modes

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, …

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Velleman-projects K8008 Assembly instructions Manuel d'utilisateur Page 10