
57
57
5.5.4. LCD display
The P30U traducers are equipped with a backlit LCD display
consist of two lines of 8 characters each. The top line of the display is
used for presenting the displayed value in floating point format (5 digits)
and for displaying the SD/SDHC card or internal file system memory sta-
tus pictograms, or maximum or minimum value pictograms after pressing
or
keys.
Table 15
Symbol
Method
of display
Meaning
constant
SD/SDHC card or internal file system memory
mounted and ready to operate
blinking
SD/SDHC card unmounted and ready for remo-
ving
blinking
SD/SDHC card is protected against writing
blinking
SD/SDHC card or internal file system memory is
full
constant
Displays the maximum value of displayed value
(value measured and counted from main input)
constant
Displays the minimum value of displayed value
(value measured and counted from main input)
The P30U transducer automatically adjust the format (accura-
cy) of display to the displayed value. To fully use the function, go to menu
and select
Settings Display
→
DecimalP
→
0.0000
or enter “0” in register 4021, then the transducer will display
the displayed value with as much accuracy as possible. Note that
a higher resolution display is not always helpful, because it may lead
to a decreased stability of indications.
Measurement range overflows are indicated by displaying
special signs at the upper line of the LCD display: