Flex 4Base® CE Instruction ManualJanuary 2017Page 36 of 417 Operating Procedures7.1 General Operationa) Reset the STOP button located on the top left hand corner of the transmitter by rotatingit clockwise or counter clockwise; the button will pop up. Thetransmitter is powered on when the STOP button is elevated.b) After turning on the transmitter power, check the Status LED onthe transmitter for any sign of system irregularities (refer to Section7.5.1: Transmitter Status Indications). If the transmitter is in goodworking order, the Status LED will blink green for up to two seconds at startup (no faultsdetected).c) Press the START button for up to one second to activate thereceiver MAIN relays. The same START button becomes anauxiliary function thereafter (refer to Section 4.2.2.3: START +AUX Function). Then press any pushbutton on the transmitter tobegin operation. Pressing any pushbutton prior to initiating theSTART command at startup will result in no signals transmitted(Status LED blinks orange).d) In case of an emergency, press down the STOP button to disconnect the receiver MAIN relaysand the transmitter power. To resume operation, rotate the STOP button clockwise or counterclockwise; the button will pop up. Then press the START button for up to one second toreconnect the receiver MAIN relays. For safety, pressing the START button is strictly requiredevery time when the transmitter is turned on or after every STOP button reset.e) After one minute or five minutes of inactivity (pushbutton not pressed) the receiver MAIN relaysare temporarily disconnected (refer to Section 4.1.5: Transmitter Inactivity Timer Settings). Pressany pushbutton or the START button to resume operation (refer to Section 4.1.4: TransmitterStart Function Settings). The receiver MAIN relays are also temporarily disconnected when thesystem encounters strong radio interference, dead spots, low battery condition, and/or when thesystem is out of operating range.f) Turn off the transmitter power by pressing down the STOP button; it will disconnect thetransmitter power and the receiver MAIN relays altogether.