Troubleshooting
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1980
2010
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Red LED (device status)
State
Possible cause
Action(s)
LED on
Internal Fault: An internal
fault condition has been
identified
Send the device back to the
manufacturer.
LED flashes at 1 Hz
External Fault: Operative
fault which can possibly be
remedied by the user (e.g.
adapter temperature
outside specified limits,
measured value outside
configured range).
Check the Diagnosis
function of the DTM to find
out which kind of error has
occurred (see chapter 6.4).
LED flashes at 3 Hz
Status "Short-circuit": There
is a short-circuit between
terminals 1 and 2.
Check wiring (see chapter
3.3).