Megger DLRO 200 User Manual Download Page 2

 

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SAFETY WARNINGS

THESE SAFETY WARNINGS MUST BE READ AND UNDERSTOOD BEFORE THE INSTRUMENT IS USED.

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DLRO200 is supplied without a plug terminating the supply lead.

 

An appropriate plug must be fitted prior to use.

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The DLRO200 must be grounded (earthed) when in use.

  If the ground / earth in the socket outlet being used to energise the DLRO200 cannot be relied upon, the instrument must be connected to a reliable 

earth / ground via the large green and yellow terminal on the left hand side of the instrument. If no ground / earth is present the instrument will refuse to 
switch on and the display will remain blank.

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Circuits must be de-energised before testing.

  The DLRO200 must only be used on dead systems. If the item under test has a voltage upon it greater than 10 volts ac peak or dc with reference to 

ground the DLRO200 will indicate the presence of the voltage and prevent any tests being carried out. 

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Testing inductive circuits can be hazardous:

  The DLRO200 is a high power instrument, designed for testing resistive loads. It must NOT be used to test inductive loads.

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During use the DLRO200, its current leads and the sample being tested can become hot.

  This is normal and is caused by the passage of high currents. Take care when touching the instrument, current leads, clips and the test sample.

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 This product is not intrinsically safe. Do not use in an explosive atmosphere.

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Ensure that the power switch is always accessible so that power can be disconnected in an emergency.

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If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.

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Summary of Contents for DLRO 200

Page 1: ...M DLRO 200 High Current Low Resistance Ohmmeter USER MANUAL www actoolsupply com www actoolsupply com...

Page 2: ...a voltage upon it greater than 10 volts ac peak or dc with reference to ground the DLRO200 will indicate the presence of the voltage and prevent any tests being carried out n Testing inductive circui...

Page 3: ...tives CONTENTS 3 SAFETY WARNINGS 2 GENERAL DESCRIPTION 4 OPERATION 5 Main Menu Screen 5 TEST Menu 6 OPTIONS Menu 7 CURRENT Menu 9 Warning Messages 9 Entering Notes In The Memo Screen 9 Test Result Sto...

Page 4: ...nt All four terminals are floating A warning will be given if dangerous voltages are connected to any terminal C or P with respect to ground GENERAL DESCRIPTION 4 The Megger DLRO 200 is an a c powered...

Page 5: ...LRO200 will beep and clear the SET CURRENT field Re enter the desired current if necessary increasing the current limit to a value equal to or greater than the desired level See separate topic for set...

Page 6: ...ely connected to the item under test before pressing the Test button The DLRO200 checks voltage and current loop continuity as in Normal Mode and if adequate passes a continuous d c current repeating...

Page 7: ...sing the two axis cursor control and the Enter key These are Retrieve Passbands Set Clock Delete Data and Storage Retrieve allows the recall of results which have been stored within the DLRO200 s inte...

Page 8: ...ng may continue without Passbands The passband option allows you to set upper and lower limits between which the test result must lie if it is to be assigned a Pass Readings that fall above the upper...

Page 9: ...sed Initially the Potential circuit is checked If there is poor continuity in this circuit a message will appear on the display stating POTENTIAL FAIL Press Enter to clear this message and correct the...

Page 10: ...u do not wish to add notes press the Test button and a new test will be started or the Enter button to return to the Main Screen TEST RESULT STORAGE Each test is numbered sequentially dated and timed...

Page 11: ...r these leads should be adequately insulated and sufficiently strong mechanically to support their own weight if long leads are being used The size of the current leads will limit the maximum resistan...

Page 12: ...ent Ranges Full Scale Resolution Volts full scale Max Test Current 999 9 0 1 0 2 V 200 A 9 999 m 1 2 V 200 A 99 99 m 10 4 V 40 A 999 9 m 100 4 V 4 A Subject to supply voltage conditions see below Accu...

Page 13: ...M Megger is a registered trademark DLRO200_UG_en_V04 0810 www actoolsupply com www actoolsupply com...

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