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60
Reference Manual
00809-0100-2240, Rev DA
October 2017
5.4
LED signals
The Rosemount 2240S Multi-input Temperature Transmitter is equipped with Light Emitting Diodes
(LED) in order to indicate status and communication.
5.4.1
Status LED
The status LED indicates:
normal operation by flashing every other second
calibration of the water level sensor, see
“Water Level Sensor calibration” on page 53
error codes
Figure 5-8. Status LED
Error codes
The status LED indicates error codes by using different blinking sequences. In normal operation the LED
flashes once every other second. When an error occurs, the LED flashes a sequence that corresponds to a
code number followed by a five second pause. This sequence is continuously repeated (for more
information see
“Device error LED signals” on page 113
).
A. Status LED
A
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