ECOTEST MKS-05 TERRA Operating Manual page 41

2.3.3.5 LCD backlight control
Each press of any button of the dosimeter activates the LCD backlight
for 6 seconds. Press the THRESHOLD button twice (time between presses
should not exceed 0.5 s) to turn on a continuous LCD backlight. Press the
THRESHOLD button twice once again to turn off a continuous LCD
backlight.
2.3.3.6 Batteries status control
Irrespective of the chosen operating mode, the dosimeter carries out a non-
stop control of batteries status. The control results are displayed on the LCD
with a battery status symbol (7) (Figure 3), which consists of four segments.
The number of blinking segments shows the level of batteries discharge.
Blinking of three or four segments is accompanied by short audio and/or
vibration signals. This means that the batteries should be replaced.
40