Omega Engineering Paperless Recorder RD8900 사용자 설명서

 

29

 
Press  Event key, the Event /Alarm List displays general Events, Alarms and Reports. Press 
Mode key to choose Evnt/Alam ( Event/Alarm ) or Report. 
 
Event/Alarm 
 
It displays the Ack (acknowledgement), Type, Source, Active time, Clear time and Value of 
events or alarms. Use directional keys ↓ ↑ to move downward or upward. Press Ack All key to 
acknowledge the alarm. Events do not need to be acknowledged.  Press Back key to return to 
the original display. 
 
 

 

 
                                                          Figure 3  – 2 
 
On the Event / Alarm List, three different colors indicate the status of the alarm. 
 

  Red - Presently in alarm status. 
  Green – The cause of alarm status was temporary, and has now returned to normal. 
  Grey – A temporary alarm (in green status), after having been acknowledged, then 

becomes grey. 

 
Active Time is the time that alarm status becomes active.  Clear Time is the time when two 
conditions are met. Firstly alarm status is cleared and becomes normal, and secondly the user 
has acknowledged it.  Once an alarm occurs, the red buzzer icon on the top right starts flashing.  
After the cause of alarm is no longer met and the alarm is acknowledged, then the red buzzer 
icon disappears. When Clear Time shows Terminated this indicates that the alarm has been 
terminated by turning off the power.