5. How to Operate
5-6. Alarm test mode
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5-6. Alarm test mode
This is used when dummy signals the same as the signals of the gas concentration are generated to check
the alarm lamp activation of the gas detector and the transmission to external circuits.
PW
A1
A2
F
LCD
Detection mode
Press the TEST key for three
seconds.
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○
○
○
0.0 ppm
COS
↓
↓
Alarm Test Mode
The message ”TEST ON” is displayed
when the contact is activated in the
alarm test, while the message “TEST
OFF” is displayed when not activated.
(The setting can be changed.)
Increase or decrease the reading by
pressing the
▲
or
▼
key.
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○
○
○
0.0 ppm
TEST OFF
MAINTENANCE
↓
↓
First Alarm
When the reading reaches the first
alarm, the ALM1 lamp lights up.
(When Contact ON is selected, the
first alarm contact is activated.)
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●
○
○
5.0 ppm
TEST OFF
MAINTENANCE
↓
↓
Second Alarm
When the reading reaches the second
alarm, the ALM2 lamp lights up.
(When Contact ON is selected, the
second alarm contact is activated.)
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●
●
○
10.0 ppm
TEST OFF
MAINTENANCE
WARNING
Before starting the alarm test (transmission test), provide a notification to the related sections so that
they can prepare for false abnormalities (external output signals and alarm contact). After the test is
completed, never fail to press the TEST key to return to the detection mode.
(If the gas detector remains in the alarm test mode, it automatically returns to the detection mode in ten
hours.)
