Megger DLRO2 Ducter Low Resistance Ohmmeter, 2 A

Megger DLRO2 Ducter Low Resistance Ohmmeter, 2 A

Model: DLRO2 | Order No: 1012-280

Megger DLRO2 Ducter Low Resistance Ohmmeter, 2 A

Model: DLRO2 | Order No: 1012-280

The low-resistance ohmmeter provides fast, accurate, and repeatable measurements in electrically noisy environments. It features a difference meter, which allows for repetitive measurements and easy comparison with an initial reference measurement. It is robust, handheld, and can be operated by non-technical users.

The low-resistance ohmmeter provides fast, accurate, and repeatable measurements in electrically noisy environments. It features a difference meter, which allows for repetitive measurements and easy comparison with an initial reference measurement. It is robust, handheld, and can be operated by non-technical users.

Regular Price $3595.00 CAD
Availability 4 to 5 Weeks
Quantity

Megger DLRO2 Offers

To ensure the ohmmeter is always ready to test, the supplied AA rechargeable NiMH batteries can easily be swapped for non-rechargeable standard AA alkaline batteries.

Features

  • ‘Difference Meter' for quick data comparisons
  • Use long leads at 1 A without compromising test speed
  • Safely test the resistance of inductive loads at 1 A
  • Up to 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
  • Easily select functions using the rotary dial
  • Option to run the test in bidirectional mode or in unidirectional mode to save time and battery power
  • The ability to view 3 results on the screen at any time makes it ideal for 3-phase systems
  • Overcome the effects of standing EMF voltages using the bidirectional test mode. Forward and reverse results can be viewed on the secondary display
  • For stability of results, the instrument will warn you when electrical noise, or noise from poor clip/probe connections, is present
  • Keeps testing as long as you can, with as many as 500 x 2 A - 3 second tests from a full charge

Test modes / options

The ohmmeter has three main test modes:

  • Normal resistance mode (μΩ)
  • Fast/long test leads test mode (mΩ)
  • Inductive resistance mode (μΩ)

Normal resistance mode

Gives the most flexibility. The user can set any maximum test current range up to 2 A and the instrument will auto range to suit the measured resistance up to that value. Useful if the test piece has a limit to the current it can withstand. The user has full control of the instrument's test features which is suitable for many applications, as listed above.

Fast/long test leads mode

Only has one user option, which is manual/auto. ‘Manual' starts the test when the TEST button is pressed, ‘auto' starts the test automatically when the instrument detects continuity. In this mode, the instrument settings are optimized for speed and, if needed, the use of very long test leads. The test current is only in one direction for speed, 1 A and above, resistance is only displayed in mΩ. This test mode is ideal for many applications but is focused on applications where:

  • The user is not technically trained. Use is simple, there are no settings to change. Where test procedures need to be very simple, “switch on, select this range and press TEST” for example
  • The required minimum test current will be 1 A
  • The measurement will only be in mΩ. Non-technical users can simply read a number and compare it with a predetermined value
  • May need the use of very long test leads. Example applications include:
  • Wind turbine lightning protection (wing tip to ground at base resistance)
  • Subsea cable laying, checking cable resistance and ground connections
  • Manufacturing, including cable resistance, large cable looms or assemblies etc

Inductive resistance mode

Tests with the test current set to 1 A to speed up the charge time. The test current will be auto ranged up as the inductance is charged. Additional convenience is added with a clever ‘auto stop' feature. The instrument will monitor the rate of change and automatically stop the test as soon as the result is stable.

Applications

  • Aviation – lightning protection testing measuring mΩ resistance between receptors, wing tip to wing tip etc., using long test leads. Optional long cable reel test leads are available, can be used for assembly of components, interconnection of equipment, repair and maintenance
  • Wind turbines – lightning protection, measuring mΩ resistance between wing tip to ground connection at base using long test leads. Optional long cable reel test leads are available
  • Rail, tram and underground – rolling stock and infrastructure, track high current joints, signalling systems
  • Marine – power wiring systems, protection systems, ship-to-shore bonding, cathode protection system testing and cable laying applications
  • Oil and gas pipelines – bonding between welded joints and grounding systems
  • Automotive and EV – battery connections, weld quality, crimped connections quality, assembly robot welding cables
  • Cable manufacturers – quality control, cable length
  • Component manufacturers – quality contro
  • Space exploration and engineering – structural metal to metal, ground network metal to metal, carbon fiber to metal, carbon fiber to carbon fiber
  • Data centers – during electrical installation of main panel, generator and UPS systems. Verification of protective device contact resistance, busbar parallel feeds, busbar lapped joints, optimum resistance over torque and cable lug to busbar connections. During maintenance using trending data for all aspects of the above, verification after repair
  • Medical hand-held opportunity – grounding and bonding systems for protection against microshock and macroshock
  • Panel/switchgear manufacturers – end of production line testing, site commissioning, maintenance and fault finding
  • Robotics – wiring systems and connections which are subject to stress/movement/vibration, bonding of component parts to minimize static, grounding of machine, welding leads of robot spot welder
  • Electrical infrastructure – cable resistance from one end, cable length, identification of parallel supplies while connected, cable to lug to connection fault finding. Checking assembled connections main supply cables and panels, switchgear and protective devices, UPS and changeover panels, interlinking busbars, interlinking cables, distribution and PDU boards, lightning protection systems, final circuits.

Megger DLRO2 Specifications

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.
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% to 0% at all battery conditions except with low battery indication.
Thermal EMF/Seeback Effect Compensation Yes, average of forward and reverse test current measurements
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
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' (3000 m)
Display Full LCD color screen with user configurable backlight
Dimensions 8.98 x 4.1 x 2.95" (228 x 105 x 75 mm)
Weight 32 oz (905 g)
Click here for complete specifications on the Megger DLRO2

What's included with the Megger DLRO2

  • Ductor Low Resistance Ohmmeter
  • Kelvin Clip Lead Set (CAT III 600 and CAT IV 300)
  • Kelvin Probe Lead Set (CAT III 600 and CAT IV 300)
  • 240 V Charger Power Supply
  • USB Memory Stick (with user guide)
  • Hanging Hook and Strap
  • Soft Carrying Case
  • 6 x 1.2 V NiMH AA 2000mAHR Batteries

Customer Reviews for the Megger DLRO2

Ask a question about Megger DLRO2 Ducter Low Resistance Ohmmeter, 2 A

Megger DLRO2 Offers

To ensure the ohmmeter is always ready to test, the supplied AA rechargeable NiMH batteries can easily be swapped for non-rechargeable standard AA alkaline batteries.

Features

  • ‘Difference Meter' for quick data comparisons
  • Use long leads at 1 A without compromising test speed
  • Safely test the resistance of inductive loads at 1 A
  • Up to 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
  • Easily select functions using the rotary dial
  • Option to run the test in bidirectional mode or in unidirectional mode to save time and battery power
  • The ability to view 3 results on the screen at any time makes it ideal for 3-phase systems
  • Overcome the effects of standing EMF voltages using the bidirectional test mode. Forward and reverse results can be viewed on the secondary display
  • For stability of results, the instrument will warn you when electrical noise, or noise from poor clip/probe connections, is present
  • Keeps testing as long as you can, with as many as 500 x 2 A - 3 second tests from a full charge

Test modes / options

The ohmmeter has three main test modes:

  • Normal resistance mode (μΩ)
  • Fast/long test leads test mode (mΩ)
  • Inductive resistance mode (μΩ)

Normal resistance mode

Gives the most flexibility. The user can set any maximum test current range up to 2 A and the instrument will auto range to suit the measured resistance up to that value. Useful if the test piece has a limit to the current it can withstand. The user has full control of the instrument's test features which is suitable for many applications, as listed above.

Fast/long test leads mode

Only has one user option, which is manual/auto. ‘Manual' starts the test when the TEST button is pressed, ‘auto' starts the test automatically when the instrument detects continuity. In this mode, the instrument settings are optimized for speed and, if needed, the use of very long test leads. The test current is only in one direction for speed, 1 A and above, resistance is only displayed in mΩ. This test mode is ideal for many applications but is focused on applications where:

  • The user is not technically trained. Use is simple, there are no settings to change. Where test procedures need to be very simple, “switch on, select this range and press TEST” for example
  • The required minimum test current will be 1 A
  • The measurement will only be in mΩ. Non-technical users can simply read a number and compare it with a predetermined value
  • May need the use of very long test leads. Example applications include:
  • Wind turbine lightning protection (wing tip to ground at base resistance)
  • Subsea cable laying, checking cable resistance and ground connections
  • Manufacturing, including cable resistance, large cable looms or assemblies etc

Inductive resistance mode

Tests with the test current set to 1 A to speed up the charge time. The test current will be auto ranged up as the inductance is charged. Additional convenience is added with a clever ‘auto stop' feature. The instrument will monitor the rate of change and automatically stop the test as soon as the result is stable.

Applications

  • Aviation – lightning protection testing measuring mΩ resistance between receptors, wing tip to wing tip etc., using long test leads. Optional long cable reel test leads are available, can be used for assembly of components, interconnection of equipment, repair and maintenance
  • Wind turbines – lightning protection, measuring mΩ resistance between wing tip to ground connection at base using long test leads. Optional long cable reel test leads are available
  • Rail, tram and underground – rolling stock and infrastructure, track high current joints, signalling systems
  • Marine – power wiring systems, protection systems, ship-to-shore bonding, cathode protection system testing and cable laying applications
  • Oil and gas pipelines – bonding between welded joints and grounding systems
  • Automotive and EV – battery connections, weld quality, crimped connections quality, assembly robot welding cables
  • Cable manufacturers – quality control, cable length
  • Component manufacturers – quality contro
  • Space exploration and engineering – structural metal to metal, ground network metal to metal, carbon fiber to metal, carbon fiber to carbon fiber
  • Data centers – during electrical installation of main panel, generator and UPS systems. Verification of protective device contact resistance, busbar parallel feeds, busbar lapped joints, optimum resistance over torque and cable lug to busbar connections. During maintenance using trending data for all aspects of the above, verification after repair
  • Medical hand-held opportunity – grounding and bonding systems for protection against microshock and macroshock
  • Panel/switchgear manufacturers – end of production line testing, site commissioning, maintenance and fault finding
  • Robotics – wiring systems and connections which are subject to stress/movement/vibration, bonding of component parts to minimize static, grounding of machine, welding leads of robot spot welder
  • Electrical infrastructure – cable resistance from one end, cable length, identification of parallel supplies while connected, cable to lug to connection fault finding. Checking assembled connections main supply cables and panels, switchgear and protective devices, UPS and changeover panels, interlinking busbars, interlinking cables, distribution and PDU boards, lightning protection systems, final circuits.

Megger DLRO2 Specifications

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.
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% to 0% at all battery conditions except with low battery indication.
Thermal EMF/Seeback Effect Compensation Yes, average of forward and reverse test current measurements
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
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' (3000 m)
Display Full LCD color screen with user configurable backlight
Dimensions 8.98 x 4.1 x 2.95" (228 x 105 x 75 mm)
Weight 32 oz (905 g)
Click here for complete specifications on the Megger DLRO2

What's included with the Megger DLRO2

  • Ductor Low Resistance Ohmmeter
  • Kelvin Clip Lead Set (CAT III 600 and CAT IV 300)
  • Kelvin Probe Lead Set (CAT III 600 and CAT IV 300)
  • 240 V Charger Power Supply
  • USB Memory Stick (with user guide)
  • Hanging Hook and Strap
  • Soft Carrying Case
  • 6 x 1.2 V NiMH AA 2000mAHR Batteries

Ask a question about Megger DLRO2 Ducter Low Resistance Ohmmeter, 2 A

Customer Reviews for the Megger DLRO2

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