4004 & 4004D are unique
digital ON-0FF timers. widely used in
applications where accurate time control in
both On & Off time is must. e.g. Lubrication
Cycles, Ball mills in Paint industry,
Microdozers, Augers, Cyclic Operations of
Valves, Time based heating - cooling .... etc.
- Quartz Crystal time base.
- CMOS IC's for reliability.
- Control of both On & Off timings.
- Modular Design in DIN sizebox.
4004 & 4004D has got two sets of thumbwheel
switches. One set is for 'ON TIME setting
other is for 'OFF TIME' setting. As per the settings
relay will get energised and denergised CYCLICALLY.
E.g. ON TIME - 142 Seconds, OFF TIME = 358 Seconds.
In this case relay will be energised (ON) for 142
seconds & denergised (OFF) for 358 seconds again
it will get energised for 142 seconds
.... cyclically it will go On & Off, On &
We can also provide sequential mode. Here two relays
R1 & R2 are used. R1 is on for ON TIME t1 then
R2 will be on. It will remain on for ON TIME t2
. Sequence is over.