Simulation; Access Lock - Echotrek SG-300 Series Installation And Programming Manual

6.10 Simulation

This function enables the user to test the settings of the outputs. The EchoTREK can simulate the static or continuous change of level according
to the simulation cycle time, high level and low level set in P85, P86 and P87. (The simulation levels must be within the programmed measuring
range 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 in
simulation mode the DIST, LEV or VOL symbol will be blinking. To quit Simulation Mode P84= 0 should be set.
P84: - - - x Selection of the simulation
X
0
The level changes continuously up and down between the level values set
1
P85: Cycle time for simulation (sec)
P86: Simulated low level value (m)
P87: Simulated high level value (m)

6.11 Access Lock

P99: dcba Access Lock by Secret Code
The 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 the
Measurement Mode. If the Secret Code is activated, the parameters can only be viewed, this is indicated by the a flashing colon ":" between the
parameter 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 the
EchoTREK 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
SE/SG-300 series two-wire compact ultrasonic level transmitters
Simulation type
No simulation
in P86 and P87 with a cycle time set in P85
LEV [m]
P87
P86
P85
t [sec]
43