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To view each gas alarm set value, press the AL button.
Press the AL button to cycle through the items in the sequence shown below.
A1
＊＊
A2
＊＊
(normal operation mode)
A1
＊＊
A2
＊＊
The percentage in full-scale% is shown on the sub-display (bottom right corner).
E.g.
“A1 10” represents that the 1
st
alarm set value is 10% of the full scale value.
The actual alarm set concentration value is shown on the LCD.
E.g. 0.10 ppm
11. Check for the correct sampling gas flow rate.
Check
that the flow rate icon quickly spins and the amber TROUBLE LED is off.
When the flow rate icon is quickly spinning, the specified flow rate (500mL/min) is
maintained.
On sub-display
Default set value
Description
A1
＊＊
Toxic: CDS-7
Combustible: CHS-7
A1
10
10% of full scale value
O2: COS-7
A1
72
72% of full scale value
A2
＊＊
Toxic: CDS-7
Combustible: CHS-7
A2
20
20% of full scale value
O2: COS-7
A2
76
76% of full scale value
Amber TROUBLE LED is off.
Flow rate icon quickly
spinning.
AL button
UP/DOWN button
LCD
E.g. 0.10 ppm
Sub-display
E.g. A1 10
