I managed successfully to set a response delay timer of 30 seconds before Armed (Away) was set thereby allowing me sufficient time to exit before an intrusion alert was triggered. I then connected a siren, which works OK according to the settings but now the delay timer does not work meaning that using the exit door is now triggering an intrusion alert. Here are the settings:
My understanding is that the ‘response delay’ is the interval between an intrusion being detected and the response, intended to give you a chance to dismiss the intrusion. Then the ‘delay before alert’ is the interval between the response being triggered and the alerts happening.