6 Operations and Functions
6-5. Other functions
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6-5. Other functions
<Suppression Function>
The sensors used with the detector are influenced by environmental changes (temperature, humidity, and
other characteristics) or interference gases (interference characteristics) in no small measure, which affects
the reading. Therefore, the reading might be fluctuated around zero even in a normal environment.
This function obscures influences by environmental changes and interference gases around zero that have
no meaning for your management rules of gas alarm. This function is used to hide (suppress) the fluctuation
of the reading under the setting value, indicating zero.
NOTE
The suppression function is factory-set. The standard setting value is 2% FS.
In the user mode, this function is disabled and the fluctuation of the reading under the setting value is
displayed.
The setting value shall be changed by our service personnel or the personnel who is trained. Do not
attempt to change by yourself.
<<Example>>
Suppression Disabled
A fluctuation around zero is displayed as the reading.
Suppression Enabled
A fluctuation under the setting value is hidden with zero.
(Zero suppression)
CAUTION
A reading below zero is suppressed with 10%FS.
If a reading below zero is more than 10%FS, it displays "-0.0". In this case, the detector cannot work.
Perform zero adjustment in the normal ambient without target gases.
