RayTek MI Miniature Infrared Sensor - Manual (Page 70)

Maintenance
62 MI
Error Codes via RS232/485
Output Error Code Description
T------ Invalid temperature reading
T>>>>>> Temperature over range
T<<<<<< Temperature under range
Table 8: Error Codes (via RS232/485)
Error Codes for the LCD Display
Display Error Code Description
----C Invalid temperature reading
H-ERR Wrong sensing head
B-ERR Wrong parameter setting (box)
OVER Temperature over range
UNDER Temperature under range
2.15 Firmware revision number, after reset of
the unit (2 seconds)
Table 9: Error Codes (LCD Display)