H&L alarm manual res is used to switch the manual reset function of the High or Low
alarm ON/OFF.
When the “H&L alarm manual res” is OFF, the High or Low alarm will disappear auto-
matically when the reading of the O
2
value is no longer in the alarm zone (O
2
level
alarms).
When the “H&L alarm manual res” is ON, it is required a deliberate manual action to re-
set either High or Low alarm.
To reset an alarm, enter Tools menu and choose Alarm manual reset.
HH alarm manual res is used to switch the manual reset function of the High High
alarm ON/OFF.
When the “HH alarm manual res” is OFF, the High High alarm will disappear automati-
cally when the reading of the O
2
value is no longer in the alarm zone (O
2
level alarms).
When the “HH alarm manual res” is ON, it is required a deliberate manual action to reset
the High High alarm.
To reset an alarm, enter Tools menu and choose Alarm manual reset.
If the analyzer is intended to detect a potentially hazardous gas concentration and the
Analyzer alarms is set ON, the manual reset functions of the intended alarm should
also be set ON in order to compliance with the common safety requirement.
7.3 Setting of Analog Inputs
Both analog inputs are not used by default. Therefore, the parameters in both analog in-
put settings must not be edited.
However, if the analyzer has been specifically ordered with preset analog inputs, please
see Appendix 74H12.1 for more information.
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