23
21.0 vol% Adjustment
・
This span adjustment mode is used in atmospheric air during periodic inspection.
1)
Make sure that the Detector is surrounded with clean air.
2)
While in gas monitor mode, press the MODE switch on the Detector first. Then
press the UP switch with the magnetic stick within approximately 2 seconds.
3)
The Detector displays
【 】
first, followed by
【 】
.
(This
procedure assumes that no operation has been performed after turning ON the
power supply.)
4)
Press the UP or DOWN switch on the Detector with the magnetic stick and
adjust the value to
【 】
.
5)
Press the ENTER switch on the Detector to start the operation.
6)
When the operation starts, the following are displayed, and the Detector is
automatically adjusted to 21.0 vol%.
【 】
↓
【
Current displayed value
】
↓
【 】
↓
【 】
7)
On completion of the span rough adjustment, the Detector will automatically
return to gas monitor mode.
▪
Always perform the 21.0 vol% adjustment in clean air. If you perform the 21.0 vol%
adjustment in a gas atmosphere, the value of oxygen concentration output will be displayed
incorrectly.
WARNING
