General Operation - Dlro 10; Test Current Indicators; Noise Lamp; C' & 'P' Indicators - Megger Ducter DLRO-10 Guia Del Usuario

Ohmimetro digital de baja resistencia
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General Operation - DLRO 10

"Contact fail"
Test current
indicators
C
10A
1A
100mA
10mA
1mA
100µA
Brightness
On/Off
Press the On/Off switch to turn DLRO 10 on. All lamps will light,
V and I lamps will flash, the software version will be displayed
and the Ω lamp will light. If the test leads have not been
connected to the test sample the 'C' and 'P' lamps will also light.
Press the On/Off button again to turn the instrument off. If the
instrument is not used for 5 minutes it will be turned off
automatically.
Adjust the brightness control to a comfortable level.
Select the Test mode by pressing the Mode button repeatedly.
The indicator lamps will cycle through the various Test modes in
turn (see the section on Test modes). Press the Test button to
start a test.

Test Current Indicators

The test current is selected automatically by DLRO 10 and is
indicated by the lamps on the left of the panel. The measured
value is displayed in the main window and the units (µΩ, mΩ or
Ω) are shown by the lamps to the right of the window.
Voltage on
Current
terminals
flowing
V
I
P
mΩ
µΩ
AUTO
TEST
Mode control

Noise Lamp

Noise in excess of 100 mV 50/60 Hz will light the 'Noise' lamp
and measurement accuracy cannot be relied upon.
Excess
noise
'C' & 'P' Indicators
The 'C' lamp illuminates to indicate contact failure in the 'C1-C2'
loop. The 'P' lamp illuminates when there is a break in the P1-P2
loop.
'V' & 'I' Warning Indicators
If external voltage is applied to the terminals the 'V' lamp will
flash. This is a warning that the item under test is live and might
be dangerous. A test cannot be performed in this condition.
The 'V' lamp will light if more than 50 V. is applied between either
voltage terminal and a current terminal. If the voltage appears
between just the voltage terminals or just the current terminals
the lamp will light at 100 V peak or 5 V peak respectively.
Please note - The 'V' lamp will only indicate if a voltage
appears between terminals. The lamp will not operate if all
terminals are at the same high voltage. The lamp will not
operate if the instrument is turned off.
The 'I' lamp will light if a current greater than 1 mA is still flowing
after a test is completed. This suggests that an inductive load
has been tested and is still discharging. Do not disconnect the
current loop until the 'I' lamp has gone out.
5

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Ducter dlro-10xDlro-10Dlro-10x

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