Measure Mode
In case of LPG/LNG Detector, the device is converted to Gas Measure
Mode as shown below when power button is turned on. Gas Measure
Mode indicates the concentration of gas, operating status of suction
pump, alarm sound On/Off status, battery level on LCD and it displays
the concentration of flammable gas by %LEL and by PPM unit for
Hydrogen. In the event that gases are detected, it indicates the value
of concentration in real time and, if it exceeds the 1st and 2nd alarm
standard, the measured value shall be displayed blinking repeatedly
along with
mark and LO or HI indication.
The gas leakage detector raises an alarm along with digital bar when gas leakage is
detected even in small amount, and the concentration value shall be reduced and alarm
also shall be ceased when moved out to safe region where normal concentration value is
measured. The alarm sound raised by the detection in the beginning stage can be
stopped (OFF) with the Alarm Sound Off Button but the 1st and 2nd alarm sound can not
be stopped. (Once alarm sound is raised, the
mark shall not be disappeared
even though the device is moved out to safe region (Can delete it by the OFF of Power
Key). When the concentration value of the gas measured exceeds the maximum
measuring range, it is indicated as the max value and it will be kept blink with one second
interval. Also alarm sound relevant to the standard of 2
nd
alarm shall be raised along with
indication.
ON/OFF function of Suction Pump and Alarm Sound
Suction pump is set to turn ON when power key is pressed. Press power key one more time
to OFF suction pump. When power key is input once again, the function of suction pump
returns to ON state as initially set. Alarm sound is also set to turn ON state when power key
is pressed. All the following operations for ON/OFF of the Alarm Sound can be performed
in the same way as that for suction pump above by using Alarm Sound key.
Method of Operation
Caution: Gas leakage detection can not be properly performed if the Suction Pump key is laid
in OFF state. As the setting of OFF mode is to save battery while the device is not in service,
Suction Pump has to be set ON all the time during the measure of gas leakage.
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