SCOM 2012 Powershell Channel Suscription runs every 1 min

All,

I've created a powershell channel script to populate custom field 1.

The script is working as planned but its running every minute, is there ayway to stop this behaviour.

I got the script from here: http://www.authoringfriday.com/2012/07/13/adding-custom-field-info-in-monitors-with-scom-2012/

Thanks,

Darreb