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DLRO10HD and DLRO10HDX
8
Overview
Test Mode Rotary Switch
Test modes and instrument Off are selected with the Test Mode rotary switch.
AUTO
3s
2
5
1
6
3
4
Available test modes are:
Item Mode
Description
1
Off
Instrument is
Off
. Rotate the switch to any mode to start the instrument
2
Manual Bi-directional
Test current applied in both directions current flow. Continuity of all four
connections is checked. Current is applied in both forward and reverse
direction.
See
Manual Bi-directional Test (page 14)
3
Automatic
Bi-directional
Test current applied in both directions current flow
See
Automatic Bi-directional Test (page 15)
See
Automatic Bi-directional Test (page 18)
: Automatic save (DLRO10HDX)
4
Automatic
Uni-directional
Current is applied in one direction only, to speed up the measurement process.
Standing EMF’s setup during the test are ignored so lower accuracy can result
See
Automatic Uni-directional Test (page 16)
See
Automatic Uni-directional Test (page 19)
: Automatic save (DLRO10HDX)
5
Continuous
Test current is applied in both directions. The test repeats at three seconds
intervals
See
Continuous Test (page 17)
See
Continuous Test (page 20)
: Automatic save (DLRO10HDX)
6
Inductive
Test current applied in only one direction.
See
Inductive Test (page 13)
Warning: When inductive loads are measured the current carrying leads must be securely clamped to
the item being tested.
Warning: Do not remove the current carrying leads before any stored charge has been discharged at
the end of the test.
Warning: Failure to comply with these instructions might result in an arc being produced, which might
be dangerous for the instrument and the operator.
Note:
When inductive loads are measured it is necessary to wait for the voltage to stabilise, so the measurement
process can take a few seconds or several minutes.
