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Megger DLRO10HD 10A Low Resistance Ohmmeter
  • Megger DLRO10HD 10A Low Resistance Ohmmeter
  • Megger DLRO10HD 10A Low Resistance Ohmmeter
  • Megger DLRO10HD 10A Low Resistance Ohmmeter

Megger DLRO10HD - No Lead Set

Megger approved distributor and service centre.

Includes: Megger DLRO10HD Dual Power 10A Low Resistance Ohmmeter, DLRO10HD User Guide on CD, Warranty Book

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NB: This version of the Megger DLRO10HD (1001-453) is not supplied with test leads.

Equally at home in the laboratory, the workshop or in the field, on the bench or on the ground, Megger’s heavy duty DLRO10HD low resistance ohmmeter combines rugged construction with accuracy and ease of use. It features an internal rechargeable battery and can also operate from a mains supply, even if the battery is completely flat.

The Megger DLRO10HD is well suited to measuring thick conductors, bonds and quality of welding because of its 10 A range for resistance values up to 250 mΩ. The instrument provides five test modes each of which is selected through a simple rotary control.

The five operating modes include two automatic modes that sense connection of the probes to minimise test time and increase productivity. To overcome thermal EMFs current is passed through the unit under test in both directions and the resulting resistance averaged.


Interchangeable test lead terminations.
High or low output power selection for condition diagnosis.
Rechargeable battery or line power supply, continuous operation, even with dead battery.
10 A for 60 seconds, less time waiting to cool, great for charging inductance.
High input protection to 600 V, inadvertent connection to line or UPS voltage will not blow a fuse.
Heavy duty case: IP 65 lid closed, IP54 operational (battery operation only).
Rotary switch selects one of five test modes, including auto start on connection.

Although the DLRO10HD is not designed as transformer ohmmeter, it is fitted with a test in progress lamp associated with the TEST button, which indicates that current is flowing in the C1-C2 loop. This lamp and a warning triangle on the LCD will flash at end of a test on an inductive load whilst a discharge current is still flowing and will stop flashing when the current has decayed to less than 1 mA.

Megger DLRO Comparison Chart
Power limited output test ranges (<0.25 W)
High power output test ranges (25 W)
Auto current reversal
Auto start (continuity detection)
High input protection
Noise immunity specified at 100 mV
Noise limit exceeded indicator
User interchangeable detachable battery pack
Hang from neck operation
Operate from mains supply
IP65 lid closed
IP54 in use
Ultra tough case
Test result storage
Printer and PC output
User selectable test limits

DLRO10 HD Product Video

Megger DLRO10HD Specifications
Test Current Resistance Range Resolution Basic Accuracy* Full Scale Voltage Max. Power Output
0.1 mA 0 to 2500.0 Ω 0.1 Ω ± 0.2% 25 mV 25 μW
0.1 mA 0 to 250.00 Ω 0.01 Ω ± 0.2% 25 mV 2.5 μW
1 mA 0 to 25.000 Ω 1 mΩ ± 0.2% 25 mV 25 μW
10 mA 0 to 2500.0 mΩ 0.1 mΩ ± 0.2% 25 mV 250 μW
100 mA 0 to 250.00 mΩ 0.01 µΩ ± 0.2% 25 mV 2.5 mW
1 A 0 to 25.000 mΩ 1 µΩ ± 0.2% 25 mV 25 mW
10 A 0 to 2500.0 µΩ 10 µΩ ± 0.2% 25 mV 0.25 W
1 A 0 to 2500.0 mΩ 0.1 mΩ ± 0.2% 2.5 V 2.5 W
10 A 0 to 250.00 mΩ 0.01 µΩ ± 0.2% 2.5 V 25 W
* The accuracy stated assumes forward and reverse measurements.
Temperature coefficient
< 0.01% per ºC, from 5 ºC to 40 ºC
Display size/type Main 5 digit + 2 x 5 digit secondary displays.
Battery type 6 V, 7Ah sealed lead acid.
Voltage input range 100 - 240 V 50 / 60 Hz 90 VA.
Charge time 8 hours.
Backlight LED Backlight.
Battery life >1000 Auto (3 sec) tests.
Auto power down 300s.
Operating temperature and humidity -10 °C to +50 °C.
EMC In accordance with IEC61326-1 (Heavy industrial).
Maximum lead resistance 100 mΩ total for 10 A operation irrespective of battery condition.
Mode selection Rotary switch.
Range selection Rotary switch.
Pouch for test leads Yes (lid mounted).
IP rating IP65 case closed, IP54 battery operation.
Dimensions (L)315 mm x (W)285 mm x (H)181 mm.
Weight 6.7 kg.
Megger DLRO10 HD warranty Two years.


Megger DLRO Test Leads

PDF Datasheet of the Megger DLRO Test Leads Fitted with Duplex Connectors options.

Download (1.41M)

Megger DLRO10HD Datasheet

PDF Specifications of the Megger DLRO10 HD Dual Power 10A Microhmmeter.

Download (918.91k)

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Megger DLRO10HD - No Lead Set
TL1.5-CL Connect test leads with indicator light - 1.5 m. 1006-456
TL3-CL Connect test leads with indicator light - 3 m. 1006-458
TL6-CL Connect test leads with indicator light - 6 m. 1006-459
TL1.5-C Connect test lead without indicator light - 1.5 m. 1006-452
TL3-C Connect test lead without indicator light - 3 m. 1006-454
TL6-C Connect test lead without indicator light - 6 m. 1006-455
EL6-C Connect Extension Lead - 6 m. 1006-460
DP1-C Duplex connect probe. 1006-450
DTP1-C Duplex connect twist probe. 1006-449
CP1-C Concentric duplex connect probe. 1006-448
KC1-C Heavy duty kelvin clip. 1006-447
KC2-C Insulated connect Kelvin clip. 1006-451
DH1-C Two wire, four terminal duplex twist probe lead set - 3m. 1006-442
DH2-C Single duplex twist probe lead - 6m. 1006-443
DH4-C Two wire, four terminal duplex probe lead set - 1.5 m. One lead fitted with indicator lights. 1006-444
DH5-C Two wire, four terminal duplex probe lead set - 3 m. One lead fitted with indicator lights. 1006-445
KL1-C Two wire, four terminal kelvin clip lead set - 3 m. 1006-462
KL2-C Two wire, four terminal insulated kelvin clip lead set - 3 m. 1006-461
Pouch Lid pouch. 1005-623

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