d&b D12 Software - Manual (Page 27)

ImpErrLf
A numerical value indicating the number of times the D12 has entered
the error condition "ImpErrLf" due to a Load Monitoring fault.
ImpErrHf
A numerical value indicating the number of times the D12 has entered
the error condition "ImpErrHf" due to a Load Monitoring fault.
InpMonErr
A numerical value indicating the number of times the D12 has entered
the error condition "InpMonErr" due to an Input Monitoring fault,
possibly caused by a missing external pilot signal.
T/S Mis.
A numerical value indicating the number of times the D12 has entered
the error condition "T/S Mis." due to a TOP/SUB mismatch at the output
connectors of the D12 in Dual Channel mode as long as the "TSM
Detection" function was not set to off.
DSP Halt
A numerical value indicating the number of times the D12 has entered
the error condition "DSP Halt" due to an internal fault.
Temp. (Temperature Log)
Proportionate temperature ranges.
They display the proportion of "On Time" the D12 has been operated
within the temperature ranges listed.
D12 Software manual (Firmware V2.x.x) (5.5 EN) Page 27 of 36