Status Flags and Error Codes
33
Type
Value
Definition
Actions/Resolutions
PM
Sensor
Status
(cont.)
32
Sensor
communication error
See 16 actions/resolutions
64
Sensor check
sum error
No action required
128
Sensor limit
exceeded
No action required, max
concentration exceeded
sensor limit.
256
Sensor fan error
No action required. If
problem persists consider
replacing PM sensor.
N O T I C E
It is also possible that more than one error may occur during the
logging interval. If this occurs, the codes are added together to
produce the final code. Use math to determine what the individual
codes are.
Examples:
Device status = Reported Code = 3
3 = 1
+ 2 = “Device was rebooted” + “Data not
written to SD card
”
Reported Code = 17
17 = 1 + 16 = “Device was rebooted” + “PM
sensor error”