The node is well, how should I take the money, so it doesn't affect the previous 1000???
U have to lock them in your wallet in "their" adress. When u go to "send coins", after u have enabled input options in the options, there should be a button "input options" at sending coins in your wallet, there u see all adresses and all amounts.
In one should be exactly 1000.0 with right click u can lock them.
After doing this it should be impossible to send them away.
You can check it if you want to send some goa after that your amount-1000 should only be shown as available.
Regards