Sensopress_LCD_Rev_00_Eng.doc Eng
16
To enable the protection it is necessary to enter the PROTECT mode and by pushing the Yes/- button
and to select Enabled to enable it and Disabled to disable it.
Figure 12
NOTE:
If one decides to activate the device’s protection, to enter any state, on the display it will be visualised
ENTER PASSWORD,
as in Figure 13 it will be requested a password composed of five characters
and introduced with the combination of
Yes/+
e
No/-
buttons; if the combination is correct there will be
the possibility to enter the planning change; if the combination is wrong no change will be possible.
For an easier use, once written the password the device memorize it for about 10 minutes.
By this time it is not necessary to re-enter the password also if entering the modes where this is
requested.
At the end of this time, the password, to enter the mode where this is necessary, is asked again.
The password is not necessary to enter the
AUTO
and the
CHANNEL
mode.
Figure 13
5
CALIBRATION OF WATER’S LEVEL SCALE
The devices produced by MAC3 are calibrated, this means they can measure the water’s level in the
expected measure field and with the specifications indicated by MAC3.
In this respect no intervention is required by the user.
For various reasons, such as the aging of components, sensor replacement, a change in the sensor’s
setup, etc., it might be necessary a new calibration. If requested, this can be realized by the MAC3
specialists
An alternative can be the feature given for this purpose by the device, thanks to this one the user as
well can autonomously do the calibration
There should be the possibility to put the pressure sensor through two known levels with good
approximation as specified below.
