Chint Power CPS SC4.6KTL-O Installation And Operation Manual page 30

To lock the current display (for
example, Frequency), press and hold
the Function Button for about a
The screen displays "Lock" then returns
to the previous screen
Pressing the Function Button on the
locked display changes to the next
After a few seconds of inactivity the
display returns to "Normal"
Note: After 30 seconds of inactivity, the backlight switches off. Pressing
the Function Button reactivates the backlight.
Accuracy of the LCD Reading
The reading on the LCD is just for reference. The readings
during normal operation are accurate to +/- 2%. Over all modes
of operation please allow +/- 5%.
The LCD Visibility and Ambient Temperature
Temperature extremes can influence the visibility of an LCD display.
Visibility returns to normal within tolerable temperatures (see
Installation chapter).
second
screen
30
Locking the display
Frequency= XX.XHz
Pac = XXXX.XW
Lock
Pac = XXXX.XW
Frequency= XX.XHz
Pac = XXXX.XW
AC-current= XX.XA
Pac = XXXX.XW
Normal State
Pac = XXXX.XW