Hi,every one,I have just joined this site.I'm hoping somebody can help me with my problem.I have installed an alarm as follows:-Veritas R8 control panel with remote keypad and an odyssey bell box,two texecom reflex pir's and one texecom magnetic door contact.It is small two bed bungalow.Pir in each bedroom and magnetic door contact on front door.Upon commissioning and doing all checks with just the battery installed I then refit control panel cover and press reset.Then I switch on mains power supply it then trips out through mcb.I have double checked the mains wiring,wired through unswitched fused spur cannot find any thing amiss.dissconected mains power at transformer end switched power back on did not trip out,I'M SNOOKERED GOOD AND PROPER,PLEASE CAN ANYBODY HELP ME,MANY THANKS.