4.3.4 When the detected gas concentration is higher than the test
range, the buzzer sounds "beep, beep", the LCD screen is on, the
vibrator is on, and the screen Display the maximum range of gas,
indicating over range. Press the " " key to release the alarm.
4. 3.5 Normal monitoring interface under the first line shows the
time, alarm signs ( it occurs when there is alarm, yellow color
with low alarm, red color with high alarm), the buzzer instructions
(normal , mute ), battery percentage, battery power, date and
temperature,
Note: The alarm sound above can be manually cleared by
pressing the " " key. After clearing, the alarm information is still
displayed normally. If the alarm is triggered again, the
corresponding alarm sound information can be issued again.
4.4 Use and set functions
The detector has a total of alarm record function, gas
concentration curve display, gas parameters setting, calibration,
zero calibration, language settings, information viewing, back light
settings, time settings and other functions. Press the " " button
to enter the function selection, in the function selection interface to
move the cursor to “return” words, continue to press " " to
return to the normal monitoring interface as shown in Figure 6.
Fig. 6
