Scantronic 9651 Remove a sensor completely?

I have 9651 with a 9930 keypad, I want to remove a sensor from the system to install a cabinet and the sensor will not be reinstalled, Can someone tell me how to do this.
I should have mentioned that the system is not being used right now but it is powered up. I want to disconnect one sensor and leave the system powered up but not functioning as an alarm system. Even if the display stays in fault mode without alarming that would be fine too. I just need to remove the sensor for now to allow the carpenter to install a cabinet. Can i just disconnect the sensor wires or even just the alarm bell? Thanks for your last reply