DL9110 / DL9118
Operating Instructions
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2 Safety Notes
This DL9110 / DL9118 is fully compliant with the requirements of:
BS EN 61010-1: 2010
BS EN 61010-2-30:2010
BS EN 61557 part 1, 2, 3, 4, 6, 7 and 10.
In order to ensure safe operation of this instrument, all notes and
warnings in these instructions must be observed at all times.
The DL9110 / DL9118 has been designed to make
measurements in a dry environment.
The DL9110 / DL9118 may be used to test circuits with a
maximum over-voltage Category III, 300 V AC/DC with
reference to earth.
High voltages are present at the probe tips of the DL9110
/ DL9118 during insulation resistance measurement.
Always hold test probes above the hand guards.
The DL9110 / DL9118 and all associated cables and leads
must be checked for signs of damage before equipment
is operated.
Prior to any resistance measurement, always ensure that
the circuit under test is electrically isolated.
Where safe operation of the DL9110 / DL9118 is no longer possible it
should be immediately shut down and secured to prevent accidental
operation.
It must be assumed that safe operation is no longer possible:
- if the instrument or leads show visible signs of damage or
- the instrument does not function or
- after long periods of storage under adverse environmental conditions.
If the DL9110 / DL9118 is used in a manner not specified
by this document then the protection provided by the
equipment may be impaired.
