WIKA DI30 - Manual (Page 20)

6 Commissoning, operation
20 WIKA operating instructions digital indicator DI30
6.3.2 Switching on
Before switching on you have to check all the electrical connections to make
sure they are correct. On completion of the installation, the device can be
switched on by applying the power supply.
During the switching-on process a segment test is performed for approx. 1
second, whereby all LEDs on the front (including alarm LEDs) are triggered.
After this, the type of software is indicated for approx. 1 second and then,
also for 1 second, the software version. After the starting procedure, the unit
changes to operation/display mode.
6.3.3 General functions
MIN/MAX Memory
The measured minimum and maximum values are saved in a volatile memory
in the unit and get lost when the unit is switched off.
You can call up the contents of the memory by pushing (less than 1 second)
the
[▲] or [▼] key. The relevant value is indicated for approx. 7 seconds. By
briefly pressing the same key again, you will return immediately to the display
mode.
[▲] Display of the MAX value
[▼] Display of the MIN value
You can erase the value shown in the display by simultaneously operating the
[
▲] & [▼] keys. The erasure is acknowledged by horizontal bars.
The content of the memory is lost when the unit is switched off.
Overflow and Underflow
An overflow of the display is indicated by horizontal bars at the top of the 7-
segment display „ ¯ ¯ ¯ ¯ “.
An underflow of the display is indicated by horizontal bars at the bottom of the
7 segment display „ _ _ _ _ “