Megger DLRO10HDX Low Resistance Ohmmeter

Megger

Price range: £3,878.00 through £4,008.00

Resistance range: 0.1µΩ to 250Ω

High accuracy: ±0.2%

Resolution: 0.1µΩ

Five test modes: Normal, automatic, automatic unidirectional, continuous, inductive

10A test current injection: Powerful performance

200 reading internal memory: Ample storage

 

SKU: MEG-DLRO10HD-1 Category: Brand:

Description

Megger DLRO10HDX Low Resistance Ohmmeter

The Megger DLRO10HDX Low Resistance Ohmmeter is engineered to measure resistance within a range of 0.1µΩ to 250mΩ with a maximum resolution of 0.1µΩ and an accuracy of ±0.2%. This powerful instrument can inject a test current of up to 10A into a conductor for up to one minute, making it ideal for measuring resistance across thick conductors, bonding, and welding. Its robust capabilities suit a variety of sectors, including rail and manufacturing.

Operating the Megger DLRO10HDX is straightforward with its simple rotary switch and push buttons, which are designed for easy use even when wearing gloves. It offers specific test modes that allow for measurements in motors and generators, as well as across different metal combinations. The automatic mode conveniently performs a test as soon as the probes are connected, and the continuous mode is perfect for conducting multiple tests on the same conductor, such as on a production line.

This ohmmeter can store up to 200 records in its internal memory, which can be easily recalled on its clear backlit LCD display. Additionally, saved files can be downloaded using the Megger PowerDB software. The instrument is supplied with a test lead pouch and user guide as standard. One of its key features is its versatile power supply, which allows it to run on either rechargeable batteries or mains power, facilitating both portable and extended use. Note that the instrument comes without test leads, but users can select either DH4-C probes or KC1 Kelvin clip probes from the drop-down menu.

Megger part number: 1008-075

Key Features

  • Resistance range: 0.1µΩ to 250Ω
  • Accuracy: ±0.2%
  • Resolution: 0.1µΩ
  • Five test modes: Normal, automatic, automatic unidirectional, continuous, inductive
  • Simple rotary switch for ease of use
  • 10A test current injection capability
  • 200 reading internal memory
  • Downloadable with Megger PowerDB software
  • Rugged and durable in testing conditions

Comparison of Digital Low Resistance Ohmmeters

FeatureMegger DLRO10Megger DLRO10XChauvin Arnoux CA6240Megger DLRO10HDMegger DLRO10HDXChauvin Arnoux CA6255
Resistance Range0.1 µΩ to 2,000 Ω0.1 µΩ to 2,000 Ω5 µΩ to 400 Ω0.1 µΩ to 2,000 Ω0.1 µΩ to 2,000 Ω1 µΩ to 2,500 Ω
Test CurrentUp to 10 AUp to 10 AUp to 10 AUp to 10 AUp to 10 AUp to 10 A (3 ranges)
Test ModesManual, Auto, Continuous, InductiveManual, Auto, Continuous, Inductive, UnidirectionalManual, AutomaticManual, Auto, Continuous, InductiveManual, Auto, Continuous, InductiveInductive, Non-Inductive, Non-Inductive w/ auto trigger
Measurement ControlFully AutomaticFully Automatic / ManualManual, AutomaticFully AutomaticFully AutomaticManual, Automatic
Measurement Speed<3s for forward and reverse current, average display<3s for forward and reverse current, average displayN/A<3s for forward and reverse current, average display<3s for forward and reverse current, average display<3s for forward and reverse current, average display
Test MethodSingle-cycle, reversing DC ratiometric measurementSingle-cycle, reversing DC ratiometric measurementN/ASingle-cycle, reversing DC ratiometric measurementSingle-cycle, reversing DC ratiometric measurementN/A
Test Current Accuracy±10%±10%±10%±10%±10%±10%
Test Current Stability<10 ppm per second<10 ppm per second<10 ppm per second<10 ppm per second<10 ppm per second<10 ppm per second
Lead ResistanceMax. 100 mΩ for 10 A operationMax. 100 mΩ for 10 A operationN/AMax. 100 mΩ for 10 A operationMax. 100 mΩ for 10 A operationN/A
Voltmeter Input Impedance>200 kΩ>200 kΩ>200 kΩ>200 kΩ>200 kΩ>200 kΩ
Noise Rejection<1% ±20 digits additional error with 100 mV 50/60 Hz<1% ±20 digits additional error with 100 mV 50/60 Hz<1% ±20 digits additional error with 100 mV 50/60 Hz<1% ±20 digits additional error with 100 mV 50/60 Hz<1% ±20 digits additional error with 100 mV 50/60 Hz<1% ±20 digits additional error with 100 mV 50/60 Hz
Data TransferNoneReal-Time or from storage via RS232NoneNoneReal-Time or from storage via RS232None
Data StorageNone700 tests100 measurements200 test records200 test records1,500 measurements
Memo FieldNoneUp to 200 characters per test via integral keypadNoneNoneNoneNone
Battery Type7Ah NiMH rechargeable7Ah NiMH rechargeableNiMH rechargeable battery6V 7Ah sealed lead-acid6V 7Ah sealed lead-acidNiMH rechargeable battery
Battery Life1000 x 10 A tests1000 x 10 A testsNot specified>1000 Auto (3 sec) tests>1000 Auto (3 sec) testsNot specified
Battery Charge Time2.5 hours to 90%, 4 hours full charge2.5 hours to 90%, 4 hours full chargeApprox. 6 hours8 hours8 hours2.5 hours to 90%, 4 hours full charge
Operating Temperature+5°C to +45°C (Full Accuracy)+5°C to +45°C (Full Accuracy)Not specified-10°C to +50°C-10°C to +50°C+5°C to +45°C (Full Accuracy)
Storage Temperature-30°C to +70°C-30°C to +70°C-30°C to +70°C-25°C to +60°C-25°C to +60°C-30°C to +70°C
Temperature Coefficient<0.01% per °C from 5°C to 40°C<0.01% per °C from 5°C to 40°CN/A<0.01% per °C from 5°C to 40°C<0.01% per °C from 5°C to 40°C<0.01% per °C from 5°C to 40°C
Maximum Altitude2,000m (6562 ft)2,000m (6562 ft)N/A2,000m (6562 ft)2,000m (6562 ft)2,000m (6562 ft)
Safety RatingCAT III 600 V (with DH6 leads)CAT III 600 V (with DH6 leads)CAT III 50 VIn accordance with IEC61010-1, CATIII 300V (w/ cover)In accordance with IEC61010-1, CATIII 300V (w/ cover)CAT III 50 V
EMC RatingIP65 (case closed), IP54 (battery operation)IP65 (case closed), IP54 (battery operation)IP53IP65 (case closed), IP54 (battery operation)IP65 (case closed), IP54 (battery operation)IP53
Dimensions (mm)220 x 100 x 237220 x 100 x 237273 x 247 x 280315 x 285 x 181315 x 285 x 181270 x 250 x 180
Weight (kg)2.62.656.76.74

What’s Included?

  • Megger DLRO10HDX Microohmmeter
  • Test lead pouch (lid mounted)
  • DLRO10HD user guide CD
  • Warranty book

 

**Available with or without DH4-C Duplex Handspikes – selectable above**

The Megger DLRO10HDX Micro-Ohmmeter can be supplied without test leads or with two Megger 1.2m DH4 Duplex handspikes with indicator lights (6111-503). The Megger DH4 1.2m Duplex Handspike Set is a useful testing kit for the Megger DLRO series of micro ohmmeters. It features two test leads with handspikes with connected test lead that terminate in twin C hooks. One of the leads has an indicator light that warns of hazardous voltage, indicates continuity, and signals completion of a test.

ELECTRICAL SPECIFICATIONS

Resistance/Current Ranges

  • The green resistance ranges on the keypad indicate low output power (<0.25 W) outputs. Red ranges indicate higher 2.5 W (1 A) and 25 W (10 A) power outputs.

Resolution and Accuracy

  • Test current accuracy: ±10%
  • Voltmeter input impedance: >200 kΩ

Test Current / Resistance Range / Resolution / Basic Accuracy* / Full Scale Voltage / Max. Power Output

  • 0.1 mA / 0 to 2500.0 Ω / 100 mΩ / ±0.2% ±200 mΩ / 25 mV / 2.5 µW
  • 0.1 mA / 0 to 250.00 Ω / 10 mΩ / ±0.2% ±20 mΩ / 25 mV / 2.5 µW
  • 1 mA / 0 to 25.000 Ω / 1 mΩ / ±0.2% ±2 mΩ / 25 mV / 25 µW
  • 10 mA / 0 to 100 µΩ / ±0.2% ±200 µΩ / 25mV / 250 µW
  • 100 mA / 0 to 250.00 mΩ / 10 µΩ / ±0.2% ±20 µΩ / 25 mV / 2.5 mW
  • 1 A / 0 to 25.000 mΩ / 1 µΩ / ±0.2% ±2 µΩ / 25 mV / 25 mW
  • 10 A / 0 to 2500.0 µΩ / 0.1 µΩ / ±0.2% ±0.2 µΩ / 25 mV / 0.25 W
  • 1 A / 0 to 2500.0 mΩ / 100 µΩ / ±0.2% ±200 µΩ / 2.5 V / 2.5 W
  • 10 A / 0 to 250.00 mΩ / 10 µΩ / ±0.2% ±20 µΩ / 2.5 V / 25 W

* The accuracy stated assumes forward and reverse measurements. Inductive mode or undirectional mode will introduce an undefined error if an external EMF is present. Basic accuracy at reference conditions.

GENERAL SPECIFICATIONS

  • Temperature Coefficient: < 0.01% per ºC, from 5 ºC to 40 ºC
  • Maximum Altitude: 2000m (6562 ft) to full safety specifications
  • Display size/type: Main 5 digit + 2 x 5 digit secondary displays
  • Battery type: 6 V, 7Ah sealed lead acid
  • Voltage input range: 90 – 264 V, 50-60 Hz
  • Charge time: 8 hours
  • Backlight: LED backlight
  • Battery life: 1000 Auto (3 sec) tests
  • Auto power down: 300s
  • Mode Selection: Rotary switch
  • Range selection: Rotary switch
  • Weight: 6.7 kg
  • Case dimensions: (L) 315mm x (W) 285mm x (H) 181mm
  • Pouch for test leads: Yes (lid mounted)
  • Test leads: DH4 lead set included
  • IP rating: IP65 case closed, IP54 battery operation
  • Safety rating: In accordance with IEC61010-1, CATIII 300 V when used with DH7 leads
  • Operating temperature and humidity: -10°C to +50°C (14°F to 122°F) <90% RH
  • Reference conditions: 20°C ±3°C
  • Storage temperature and humidity: -25°C to +60°C, <90%RH
  • EMC: In accordance with IEC61326-1 (Heavy industrial)
  • Noise rejection: Less than 1% ±20 digits additional error with 100 mV peak 50/60 Hz on the potential leads. Warning will show if hum or noise exceeds this level.
  • Maximum lead resistance: 100 mΩ total for 10 A operation irrespective of battery condition.

🚚 Testersmans Shipping Policy

Free Mainland GB Delivery Over £150

We offer free delivery on most mainland Great Britain orders over £150 (ex VAT).
This applies across England, Wales, and most of Scotland, excluding certain remote or offshore postcodes.

If your order total falls just short of £150, or you’re a returning customer, feel free to contact us — we may be able to offer a discount code or delivery workaround.
📞 01945 738112 | ✉️ [email protected]


📦 UK Delivery Options

We work with both Royal Mail and DHL to offer reliable and flexible delivery across the UK:

  • Royal Mail – Best suited for lighter parcels and for customers in remote regions, including the Highlands, Islands, and Northern Ireland.
  • DHL – Ideal for most mainland UK orders, providing fast, tracked delivery and excellent reliability for time-sensitive shipments.

Our checkout system automatically displays the available delivery services for your postcode and order weight, ensuring you always see the most suitable options.

Note: Heavy, bulky, or freight-only orders will be charged separately.
Our website is designed for quick, transactional purchases rather than bulk or palletised orders.
Please contact us in advance for a tailored freight quotation if your order falls into this category.


⏱ Dispatch & Delivery Timing

We aim to dispatch all in-stock orders promptly, but delivery depends on both when you order and which service you select.

  • UK orders: placed by 2:00 PM Monday–Friday are usually dispatched the same day.
  • International orders: placed by 2:00 PM Monday–Thursday are usually dispatched the same day.

Orders placed after these times are processed the next working day. This means delivery may occur the following day or later, depending on the courier and service selected.

Once dispatched, your chosen delivery service determines how quickly your parcel arrives:

  • Standard services We use Royal Mail Tracked 24 or DHL Parcel as our ‘Standard’ services. They are not guaranteed to arrive next working day.
  • Premium services (e.g. Royal Mail Special Delivery or DHL by Noon) offer guaranteed delivery windows.

If your order is time-sensitive, we strongly recommend choosing a guaranteed service or contacting us before ordering to confirm availability.

Please note: For logistical reasons, we may occasionally adjust the delivery method selected at checkout. For example, smaller items may be better suited to letterbox-friendly packaging or may be at greater risk of delay or loss via certain services. We actively monitor courier and postal service disruptions—including strikes and delays—and may modify shipping arrangements to help ensure timely and secure delivery.


📅 Busy Periods & Delays

We always aim to dispatch promptly, but delivery times may be affected by:

  • Seasonal demand (e.g. Christmas, bank holidays, or industry shutdowns)
  • Courier network delays outside our control
  • Supplier lead times or calibration requirements for certain equipment

If your delivery is time-critical, please contact us before ordering so we can confirm stock and courier availability.


🌍 International Shipping

We ship worldwide using UPS Express Saver® and other trusted global courier partners. All international shipments are tracked and generally dispatched Monday to Thursday to ensure smooth customs clearance and transit.

Estimated delivery times:

  • Europe: 1–2 working days
  • North America: 2–3 working days
  • Asia-Pacific & Rest of World: 3–5 working days

Delivery times vary depending on location, customs clearance, and local courier performance.


💰 Taxes, Customs & Import Duties

International customers are responsible for any applicable taxes, customs charges, or import duties.
These are not included in our product or shipping prices.

Your courier will typically provide a secure payment link for any import charges once your parcel reaches customs.
If import fees are refused and the parcel is returned, we will issue a refund minus all incurred shipping and return costs.


📍 Using Your Own Courier

If you would prefer to arrange collection via your own courier (UK or international), please contact us before placing your order to coordinate collection from our Wisbech warehouse.


📝 Important Notes

  • Please ensure your delivery address and contact number are correct at checkout.
  • Undelivered parcels may be returned to us after a short holding period.
  • Redelivery or return fees may apply, even if your order originally qualified for free delivery.
  • By placing an order, you confirm your understanding and acceptance of this policy.

Additional information

Test Lead Option

Without Test Leads, With DH4-C Duplex Handspikes

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