2. PART & FUNCTION
2-1. INDICATOR
①Power light : Green LED is lit while
Supplied by AC 220V.
②Alarm mute warning light: Buzzer
Stop Yellow LED blinks if the alarm
Mute button is pressed. And
during this time, the audible alarm
Is mute in spite of the alarm
condition. And if the button is
pressed again, the light is
eliminated and the buzzer
becomes audible again.
③Test button: It allows the user
to Check the circuit of the UNIT
Panel. If it is pressed, the
concentration of gas, as if gas is
detected actually. And if the
concentration exceeds the alarm
point the audible alarm beeps
④Alarm mute button: If allows the user to silence the buzzer when it’s alarm condition.
If pressed one time, buzzer becomes mute. And pressed again, Buzzer becomes audible
again
⑤Reset button: It allows the user to reset the value of the concentration. But if the
Concentration of gas exceeds alarm point the alarm condition is not reset.
⑥LED dot display: It displays the concentration of gas on LED dot display
⑦Warning light(ALARM): Yellow LED blinks when gas is detected, eliminated in normal
condition
⑧Digital display: It displays the concentration of gas on 7segement display
: If the concentration exceeds the point and the value of the concentration is maintained
For several seconds, it displays letter GAS and the value of concentration by rotation
(If the concentration keeps changing the changing value of concentration is displayed
only)
⑨Fault light (ERROR): It gets lit when the fuse for the sensor has blown. Or the connection
Wire between the sensor and the indicator is connected or short-circuited. Or the
sensitivity of the sensor has been lost
