deister electronic GmbH 30890 Barsinghausen Germany 11V19/07/04RDL150 RS485/RS2325.3 Easy Trim Function (ETF)This function allows adjusting the reader to its environmental conditions.The ETF is a semiautomatic function for trimming the reader to its best performance.The ETF starts if switch S1 is pressed.In this mode only one of the three LEDs is blinking. The individual meaning of each LED is:Red LED: The rotatable switch (S5) must be turned to the rightYellow LED: The rotatable switch (S5) must be turned to the leftGreen LED: The setting of the rotatable switch (S5) matched the best performance.It could be possible that there are two settings of the switch that match the best performance.If there are two possible positions of the rotatable switch (S5), it is better to choose the positionbefore the yellow LED is blinking.The ETF ends after switch S1 is pressed again. It also ends after 6 minutes.If the reader should be mounted directly on metal ground (distance to metal is lower than2 cm) the switch S7 must be actuated before the rotatable switch is turned.