35
Alarm Output Functions
Output Format
Open collector output (rated 24 V DC and 0.04 A)
*1
Output Criteria
(1) Average dust concentration value exceeds the criteria value
(2) Instantaneous dust concentration value exceeds the criteria
value
(3) A problem (error) has occurred
*2
Select one of the above three.
*3
*1 For more about alarm output cable connection, see 5-1 Analog and Alarm Outputs (page
30).
*2 For a list of problems (errors), see 7-3 Alarm Types (page 36).
*3 For instructions on selecting output conditions and specifying criteria values, see
9-2-5 Alarm Settings (page 60).
Supplemental Information About Alarm Functions
•
Once an alarm occurs, the same alarm will not occur again until the corresponding value
returns to normal and the alarm conditions occur again.
•
Measurements continue even if an alarm occurs.
•
Except for certain errors, alarms are not displayed on the operation screen.
7-2 Viewing
the
Alarm
Log
To view the alarm log, select [ALARM LOG] on the menu screen.
For more details, refer to 9-4 Viewing the Alarm Log (page 67).
