5-2 | Model 888 ATEX IECEx Tail Gas Analyzer
Alarm Conditions and Responses
There are four alarm levels that indicate the severity of an alarm condi-
tion. These levels are 1 thru 4 with level 1 being the most serious condi-
tion.
• Level 1: Both the System Alarm and Data Valid relays are opened. The
analyzer jumps into period 2, Not Ready, where the sample system is
continuously flushed with air or nitrogen.
• Level 2: Both the System Alarm and Data Valid relays are opened. The
analyzer does not jump into period 2, Not Ready.
• Level 3: Indicates a warning. No alarm relays change state and there
will be visual indication at the local display and on the web page.
• Level 4: This is a user configurable alarm. Relay 3 or Relay 4 may
change state. Refer to the 888 User Interface Manual for instructions
on how to set up programmable relays.
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