Download Infrared Sensor Operating Instructions

Install and Operation
5.5 LED indicator and blink mode
You can easily find the unit health status by the following LED blink mode:
status
LED-blink
LED-status
normal
slow blink 1
alarm
fast blink
○ ○ ○ ○ ○ ○ ○ ○
out of range
double blink
○ ○○○○○ ○ ○○○○○
unstable*
slow blink 2
○○○ ○○○ ○○○ ○○○
alarm fault**
always lighting
○
* unstable is typically caused by head ambient temperature fluctuations due to initial
warm up or thermal shock situations.
** alarm fault indicates the input of sensor’s alarm port is over current.
Table 2: LED blink mode
21
Rev. B 06/2011
CM