LOW RESISTANCE OHMMMETERS
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DLRO 247000
Digital Low Resistance Ohmmeter

• Resolution to 0.1 µ? on 599.9 µ? range
• Standard accuracy of ±0.25%
• Digital readout

Megger Digital Low Resistance Ohmmeters (DLRO) are a family of highly accurate instruments that provide a simple, practical and reliable means of making low-resistance tests in the field. They also are ideal for production quality control. They operate on the four-wire measurement principle, thus eliminating lead and contact resistances. With basic accuracies of ±0.25% and resolution down to 0.1 µ?, they are nonetheless designed to be rugged and portable for use at the job site. A variety of optional test leads and calibration resistance standards are offered for use with.

MEGGER BT51
Low Resistance Ohmmeter

• High test current
• Four terminal measurement
• Two measuring ranges
 (2000 m?. and 20,00 m?.)
  and maximum resolution of 0,01 m?.
• Protected against inadvertent
  connection to the mains supply

The BT51 Low Resistance Ohmmeter makes measurements by passing a current through the conductor under test and also monitoring the voltage across it. The test current is limited by a simple current limiting circuit and is measured by monitoring the voltage across a resistor. The test current is maintained at a nominal 2 A, and as the measurement is ratiometric, the reading is unaffected by any current variations.

Megger DLRO10
Digital Low Resistance Ohmmeters

• Accurate results in under three seconds
• Auto current reversal cancels standing emfs
• Fuse protected to 600 V
• NiMH battery reduces weight
• 250 mW power limit (with optional override)
  to avoid heating the test sample
• Automatically detects continuity in
  potential and current connections
• Visible warning of high voltages present
  at the terminals
• Visible warning of current flowing in
  the test sample
• Multiple operating modes including
  fully automatic

Megger DLRO200
Digital Low Resistance Ohmmeter

• Small and weighs less than 15kg
• Test currents from 10 A to 200 A d.c.
• 0.1 µ? best resolution
• On board memory for up to 300
  test results and notes
• RS232 port to download stored results
  or for real time output to a printer
• Supplied complete with 5m test leads
  and download software

Megger DLRO200 measures resistances between 0.1 µ? and 1 ?,
at high currents.

This versatile instrument can provide test currents from 10 amps up to 200 amps subject to the load resistance and supply voltage. A large liquid crystal display provides all the information needed to perform a test; all test parameters and measurement results are displayed.



Megger DLRO10X
Digital Low Resistance Ohmmeters

• Accurate results in under three seconds
• Auto current reversal cancels standing emfs
• Fuse protected to 600 V
• NiMH battery reduces weight
• 250 mW power limit (with optional override)
  to avoid heating the test sample
• Automatically detects continuity in
  potential and current connections
• Visible warning of high voltages present
  at the terminals
• Visible warning of current flowing in
  the test sample
• Multiple operating modes including
  fully automatic
• Alpha-numeric keypad for entering test
  notes
• User setable high and low limits
• Autoranging with Manual option
• Printer output and memory

Megger DLRO600
Digital Microhmmeter

• Small and weighs less than 33 lbs (15 kg)
• Test currents from 10 A to 600 A dc
• 0.1 µohms best resolution
• On board memory for up to 300 test
  results and notes
• RS232 port to download stored results
  or for real time output to a printer
• Supplied complete with 16.4 ft (5 m) test
  leads and download software

Megger DLRO600 measures resistances between 0.1 µohms and 1 µohms, at high currents.

This versatile instrument can provide test currents from 10 amps up to 600 amps subject to the load resistance and supply voltage. A large liquid crystal display provides all the information needed to perform a test; all test parameters and measurement results are displayed.