Adjusting Contrast; Turning Off The Alarm Buzzer; Alarm Display; Switching Display (Automatic) - JRC JLR-7900 Quick Reference

4.1.8 Adjusting contrast

Contrast can be adjusted over 13 levels.
Whenever is pressed, the contrast is reduced (increased) from the current setting and after
the contrast reaches the lowest (highest) level, the contrast increases (reduced) gradually.

4.1.9 Turning off the alarm buzzer

Buzzer sound can be turned off by pressing
The buzzer sounds if an alarm occurs.

4.1.10 Alarm display

When an alarm occurs, the event is notified with a popup menu and alarm sound.
When is pressed, the popup menu is cleared and the buzzer sound stops. However, display
of " " remains on the status bar unless the alarm is cancelled.
Even after the popup menu is cleared and the buzzer sound is stopped, the invalid numerical
number keeps blinking until the alarm is cancelled.
4.1.11 Switching display
The display screen is switched whenever
Display3
Display2
(D2)
4-6
(D 3)
.
is pressed.
Display4
(D4)
Display1
(D1)
Display5
(D5)
Display6
( D 6)