MEGGER DLRO2 Ducter
MEGGER DLRO2 Ducter

MEGGER DLRO2 Low Resistance Ohmmeter

MEGGER DLRO2 Features

  • New Difference Meter for quick data comparisons
  • Use long leads at 1 A without compromising test speed
  • Safely test the resistance of inductive loads at 1A
  • >600 V active protection against inadvertent live connections without blowing a fuse
  • Ideal for outdoor use with protection against dust and moisture to IP54
  • Industry standard safety rated at CATIII 600 V/CATIV 300 V

Get fast, accurate, repeatable measurements – even in noisy environments – with the DLRO2 hand-held 2A low resistance ohmmeter.

    Megger DLRO2 Datasheet

    Megger DLRO2 User Manual

 

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    The MEGGER DLRO2 Low Resistance Ohmmeter can measure low resistance values across a wide range of applications, from railways and aircraft to industry components.

    The DLRO2 is a tough, hand-held 2 Amp low resistance ohmmeter. It’s designed to provide fast, accurate, repeatable measurements, even in electrically noisy locations. The DLRO2 is the latest in a long line of instruments to proudly display the Ducter™ brand, the Ducter™ testers being as well-known and relied upon as Megger insulation resistance testers.
    For the utility or industrial user, a high level of safety is provided with a CATIII 600 V/CATIV 300 V rating to IEC61010. In addition, the instrument can protect itself from inadvertent connections to up to 600 V without blowing a fuse, thereby avoiding essential time lost due to repairs or finding a replacement fuse

    This tough device comes with a brand new ‘difference’ meter that allows repetitive measurements to be easily compared with an initial reference measurement. The difference meter also translates the percentage difference to a needle/pointer movement, making the changes clear to see.

    If your applications require long test leads, then the Megger DLRO2 can provide this without compromising test speed or safety. It has a dedicated long lead test to optimise the output, and this long test lead function is able to provide up to 1 A of test current into 4 ohms resistance.

    The Megger DLRO2, with its optional cable reel test leads, is therefore ideal for testing wind turbine and avionic lightning protection applications.

    MEGGER DLRO2 Specifications

    General Specifications
    PHYSICAL Dimensions 8.98 x 4.1 x 2.95 in. (228 x 105 x 75 mm)
    Display Full LCD color screen with user configurable backlight
    Weight 32 oz (905 grams)
    SAFETY AND ELECTRICAL PROTECTION
    Safety rating CATIII 600 V / CATIV 300 V to EN 61010, IEC 61010-031 : 2015, IEC 61010-030
    Safety category rating valid to altitude of 9842 ft (3000 m)
    Live voltage Active live voltage protection to 600 V between any test terminals without blowing a fuse. Live voltage warning on display and audible when >5 V is applied between any test terminals. Fuse protected to 1000 V, fuses are not user changeable.
    TEST CURRENT OUTPUT
    Current ranges 2 A, 1 A, 100 mA, 10 mA and 1 mA
    Maximum compliance output voltage 3.24 V (1 A mode) 2.2 V (2 A mode)
    Current output accuracy Normal and inductive mode: ±10 % Long lead test mode: +10 % -0% at all battery conditions except with low battery indication.
    Thermal EMF/Seebeck effect compensation Yes, average of forward and reverse test current measurements
    LOW RESISTANCE MEASUREMENT
    Resistance measurement test modes Normal test mode, fast mΩ/long test lead mode and inductive test mode (resistance of inductive loads).
    Overall resistance range 1 μΩ – 2000 Ω
    Max resistance across C terminals 2 A with up to 1.1 Ω total resistance and 1 A with up to 3.2 Ω total resistance.
    Basic accuracy Bi-directional test current mode: ± 1% ±2 digits. Uni-directional test current mode: ± 1% ± 10 digits. Inductive mode or unidirectional mode will introduce an undefined error if an external EMF is present.
    ENVIRONMENT
    Noise immunity Less than 1% ±20 digits additional error with 80 mV peak 50/60 Hz with on screen noise limit indicator.

    Less than 1% ±20 digits additional error with 80 mV peak 400 Hz with on screen noise limit indicator.
    EMC IEC61326-1, industrial specification IEC61326-2-2
    Dust and moisture ingress IP54 to IEC60529 in use
    Altitude Operational to 9842 ft (3000 m)
    Temperature Operational range 32º F to 122º F (0 ºC to 50 ºC)

    Storage range -4º F to +122º F (-20 ºC to 50 ºC)
    Humidity Operational to 95% Storage to 90%
    Power Supply Rechargeable 6 x AA NiMH batteries with built-in fast charge (also has the ability to use non-rechargeable alkaline AA batteries (LR6)
    Battery charge time < 4 hours
    Battery life >1000 bi-directional tests at 2 A auto into a 1 Ω load
    BATTERY CHARGER ADAPTOR
    Line input voltage 100 to 240 V
    Line input frequency 50 to 60 Hz
    Output 12 V DC 1.2 A 14.4 W max
    Type Travel adaptor/interchangeable plug adaptor
    Plug types Australia
    CONNECTIONS
    Test terminals 4 x 4 mm shrouded sockets
    Battery charger 2.5 mm DC jack connector

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