Concentration of calibration gas for device
Gas
Combustible gas
Hydrogen
Concentration
10%LEL
500 ppm
Method of Alarm Set Up and Display
Caution : The values set for alarm of the device are set in conformity with the alarming
standards internationally required by gases. Therefore, the set value for alarm by gases can
be modified by the approval of the manager responsible for the area where the device is
used.
Alarm
Standard for Alar
m
LCD Display
Alarm Sound
1
st
Alarm
When exceeding
the value set for
1
st
alarm
and
indicates LO
2
nd
Alarm
When exceeding
the value set for
2
nd
alarm
and
indicates HI
Low
One level only
left unused
Blinking
Battery
Dead
is exhausted
Blinking
Battery
Test Failure
Failure of sensor
test
Failure of calibra
tion
Displays
Icon
Indication of Alarm
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