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Commissioning and operationVisual Quit / Test: Standard function: visual acknowledgement, i.e. all flashing alarmtexts in the currently visible alarm screen switch to constant representationif the horn was acknowledged beforehand; the red alarm LEDTESTintegrated in the front plate is also switched from flashing to continuouslighting. All other monitoring devices in the system are acknowledgedvia the serial bus.Test function if there is currently no alarm and / or all issued alarmshave been visually acknowledged beforehand: Lamp test, i.e. thethree LEDs in the front plate are activated as long as the key ispressed.Special function: see explanation of keyPAGE+-menu function: Shift selection cursor to the right or increase inputvalue.RESET:RESETStandard function: The reset key can be used to reset a slow down orstop alarm:A reduction alarm can only be reset after reduction of the speedbelow 800 rpm.If the corresponding criteria have been met, horn and optics / test buttonpressed / activated and the cause of the alarm eliminated, the reductionor stop alarm in the central processing unit is reset.Special function: see explanation of keyPAGE–-menu function: Shift selection cursor to the left or decrease inputvalue.PAGE:PAGEStandard function: Switch to next highest display screen for analog enginedata. The page number is indicated in the top left-hand side ofthe display with P1 to P4. Page 4 is followed again by page 1. If thiskey is pressed while the alarm screen is on display, the monitorswitches back to the analog engine data from which the alarm screenwas originally called.-Special function: Key enables setting of the LCD contrast with simultaneouspressing of the keysTESTorRESET.27