8
Warning Messages
Noise
Noise in excess of 100 mV 50/60 Hz will activate the noise icon
that
will flash and no result will be displayed.
‘C’ & ‘P’ Indicators
A good measurement requires both the current carrying circuit and the
voltage detection circuit to be completed by the unit under test. DLRO10HD
checks for continuity in both C and P circuits. When connectivity is detected,
C 1---2 and P 1---2 indications are displayed in the left bottom sector of the
LCD. If there is poor continuity in either circuit, the “---“ indicators will flash
between C and/or P circuits to indicate a continuity problem.
External Voltage Warning
If external voltage is applied between the terminals and the instrument is
on, the HV warning
F
will flash on the display. This is a warning that the
item under test is live and might be dangerous and testing is disabled. The
HV warning
F
message will flash if more than 50 V potential difference is
applied between voltage terminals and current terminals. This warning will
not appear if all terminals are at the same high voltage.
Please note - The warning will not operate if the instrument is turned
off.
Discharge Voltage/Current Warning
The HV warning
F
and the red HV lamp on the panel will flash if a current
greater than 1 mA is still flowing after an inductive test is completed. This
suggests that the inductive load has been tested and is discharging. Do not
disconnect the current loop while the discharge warning is showing.
