have read on here about wireing up the mk138 to an incubater to run the thermostat, bulb and fan but did not understand it, 
could anyone on here tell me simply how to wire it up to my incubater please any info would be welcome thanks for looking
Check this post, connection is similar:
http://forum.velleman.eu/viewtopic.php?f=7&t=7407&p=27670&hilit=MK138#p27670
[quote=“VEL417”]Check this post, connection is similar:
http://forum.velleman.eu/viewtopic.php?f=7&t=7407&p=27670&hilit=MK138#p27670[/quote]
went there and it dont make any sence to me
Dear Sir,
Sorry, but judging from the content of your posts, we have the impression that you are a complete novice.
There is no problem with that, however it will be difficult to help you.
We strongly suggest that you seek local help, i.e. someone who can have a look at your assembly and wiring.
As for the connection of your bulb and fan, connect the (-) of your power supply to the (-) of the bulb and fan.
Connect the (+) of the supply to the COM of the MK138.
Connect the NO of the MK138 to the (+) of the bulb and fan.
Sorry, but there is no other way to explain.
[quote=“VEL417”]Dear Sir,
Sorry, but judging from the content of your posts, we have the impression that you are a complete novice.
There is no problem with that, however it will be difficult to help you.
We strongly suggest that you seek local help, i.e. someone who can have a look at your assembly and wiring.
As for the connection of your bulb and fan, connect the (-) of your power supply to the (-) of the bulb and fan.
Connect the (+) of the supply to the COM of the MK138.
Connect the NO of the MK138 to the (+) of the bulb and fan.
Sorry, but there is no other way to explain.[/quote]
yea thats me a novice, but i can understand what you saying about the connection thank you so much for your help all i need now is a zd1:5v1 then will try what you said once again thank you
[quote=“robrandle”][quote=“VEL417”]Dear Sir,
Sorry, but judging from the content of your posts, we have the impression that you are a complete novice.
There is no problem with that, however it will be difficult to help you.
We strongly suggest that you seek local help, i.e. someone who can have a look at your assembly and wiring.
As for the connection of your bulb and fan, connect the (-) of your power supply to the (-) of the bulb and fan.
Connect the (+) of the supply to the COM of the MK138.
Connect the NO of the MK138 to the (+) of the bulb and fan.
Sorry, but there is no other way to explain.[/quote]
yea thats me a novice, but i can understand what you saying about the connection thank you so much for your help all i need now is a zd1:5v1 then will try what you said once again thank you[/quote]
well put in new diode wired up and running great thank you all who helped