while the second level (“hidden” password) can be accessed ac- cording to the following procedure.
Remove the power supply to the instrument, press the key P and return power to the instrument, keeping the key pressed.
After about 5 sec. the SET led will light up, the display will show the code that identifies the first parameter and it will be possible to set the parameters of the instrument using the same programming pro- cedure described previously.
Once the parameter has been selected and the SET is on, it means that the parameter can be programmed even on the first level ("visi- ble”).
If the LED is off it means that the parameter can only be pro- grammed on this level (i.e. “hidden”).
To change the visibility of the parameter, press the key U: the led SET will change status, indicating the accessibility level of the pa- rameter (on = parameter “visible”; off = parameter “hidden”).
The access procedure for “hidden” parameters allows the “PASS” parameter to be checked and changed, and is useful therefore if the password set has been forgotten.
2.5 - ON / STAND-BY FUNCTION
The instrument, once powered up, can assume 2 different conditions:
- ON : means that the controller uses the control functions.
- STAND-BY : means that the controller does not use any control function and the display is turned off except for the green SET led. If there is no power, and then power returns, the system always sets itself in the condition it was in before the black-out.
The ON/Stand-by function can be selected using the key U if the parameter "USrb" = 1 (see par. 4.8)