Hi all,
I have a 8 input 8 output sms controller of which the outputs are triggered by a 12V pulse...
I am trying to switch 230V loads up to 5A each on the outputs.
The outputs on the controller pulse for 1 second and I thought I had the answer by using 12v-230V 8A relays of which send out a 1 second pulse then energise a staircase timer on the 230V side of which can be configured to 0.5 - 20 minutes.
The above seems to work pretty acuratly when puttting a 230V lamp across the load side but when im putting on a 3A pond pump the staircase timer seems to go on 2 or 3 times (can hear it clicking where its supposed to stop)
What I am looking for is a more reliable way of turning on 230V loads of which time out accuratly i.e 2 - 7 minutes but with only the 1 second 12V pulse to control them by.
I thought I was onto a winner with these staircase timers as they only cost £7.50 each and I need 8
Im wondering if anyone has any ideas?
Thanks
I have a 8 input 8 output sms controller of which the outputs are triggered by a 12V pulse...
I am trying to switch 230V loads up to 5A each on the outputs.
The outputs on the controller pulse for 1 second and I thought I had the answer by using 12v-230V 8A relays of which send out a 1 second pulse then energise a staircase timer on the 230V side of which can be configured to 0.5 - 20 minutes.
The above seems to work pretty acuratly when puttting a 230V lamp across the load side but when im putting on a 3A pond pump the staircase timer seems to go on 2 or 3 times (can hear it clicking where its supposed to stop)
What I am looking for is a more reliable way of turning on 230V loads of which time out accuratly i.e 2 - 7 minutes but with only the 1 second 12V pulse to control them by.
I thought I was onto a winner with these staircase timers as they only cost £7.50 each and I need 8
Im wondering if anyone has any ideas?
Thanks