60/54 ♦ BKI 03 ATEX 027X ♦ sea3802a0600p_036.14 SIMULATIONThis function enables the user to test the settings of the outputs. The EchoTREK can simulate the static or continuous change of level accordingto the simulation cycle time, high level and low level set in P85, P86 and P87. (The simulation levels must be within the programmed measuringrange set in P04 and P05.)After selecting simulation type in P85 and setting simulation values Measurement Mode has to be re-entered. While the EchoTREK is insimulation mode the DIST, LEV or VOL symbol will be blinking. To quit Simulation Mode P84= 0 should be set.P84: - - - x Selection of the simulationX Simulation type0 No simulation1 The level changes continuously up and down between the level values setin P86 and P87 with a cycle time set in P85P87P86P85LEV [m]t [sec]P85: Cycle time for simulation (sec)P86: Simulated low level value (m)P87: Simulated high level value (m)6.15 ACCESS LOCKP99: dcba Access Lock by Secret CodeThe purpose of this feature is to provide protection against accidental (or intentional) re-programming of parameters.The Secret Code can be any value other than 0000. Setting a Secret Code will automatically be activated when the EchoTREK is returned to theMeasurement Mode. If the Secret Code is activated, the parameters can only be viewed, this is indicated by the a flashing colon “:” between theparameter address and the parameter value.In order to program the device locked by a secret code, first enter the Secret Code in P99. The Secret Code is re-activated each time theEchoTREK is returned to Measurement Mode.To delete the Secret Code, enter the Secret Code in P99. After confirming it with [E] re-enter the parameter P99 and enter 0000.[dcba (Secret Code) ] → [E] → [E] → [0000] → [E] ⇒ Secret Code deleted