Megger DLRO10HD Digital Low-Resistance Ohmmeter

Megger

Price range: £3,316.00 through £3,441.00

  • Durable ohmmeter capable of measuring low-resistance in variety of products and environments
  • Interchangeable test lead terminations
  • Five test modes, including Auto Start on Connection; Normal; Automatic Unidirectional; Continuous; Inductive
  • All modes selectable via rotary switch which is easy to use in all weather conditions and when wearing gloves
  • Tests last for up to 60 seconds
SKU: MEG-DLRO10HD Category: Brand:

Description

Megger DLRO10HD Digital Low-Resistance Ohmmeter

Product Details:

The Megger DLRO10HD Digital Low-Resistance Ohmmeter is an advanced, rugged, and easy-to-use instrument designed to measure low resistance in a wide range of systems and components. It is ideal for Ducter testing in applications such as railways, aircraft, and industrial resistance components. With five selectable test modes, the DLRO10HD provides flexibility and accuracy, making it suitable for various testing requirements. It is capable of applying 10A into measurements up to 250mΩ and 1A into measurements up to 2.5Ω, ensuring fast and efficient results. The device’s robust design includes a large, backlit LCD display, high resistance to environmental conditions, and the ability to be powered by an external line supply, ensuring continuous operation even when the battery is low.

Key Features:

  • Delivers 10A for measurements up to 250mΩ and 1A for measurements up to 2.5Ω, offering high power for low resistance testing.
  • Each test lasts up to 60 seconds, reducing cooling time and improving the efficiency of inductance charging.
  • Offers five selectable test modes: Auto Start On Connection, Normal mode, Automatic Unidirectional mode, Continuous mode, and Inductive mode.
  • High and low output power settings for condition diagnosis and greater flexibility during testing.
  • Large, backlit LCD display with contrast adjustment for easy reading in all lighting conditions.
  • Can be powered via a line power supply, ensuring continuous use even if the rechargeable battery is depleted.
  • Withstands up to 600V without blowing a fuse, providing added safety during testing.
  • Includes a live test lead warning light for safe operation.
  • Supplied with a rugged case, shoulder strap, and lead set pouch for easy transportation and protection.
  • Enclosed case has an IP65 rating, making it resistant to water jets and dust.
  • Auto Power Off function to conserve battery life when not in use.
  • Removable lid for easier test lead connection.

What’s Included:

  • Megger DLRO10HD Digital Low-Resistance Ohmmeter
  • Robust, hard case with shoulder strap and lead set pouch
  • DLRO10HD User Guide CD
  • Warranty Book

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

Megger DLRO10HD Digital Low-Resistance Ohmmeter Technical Specifications

Temperature Coefficient< 0.01% per ºC, from 5 ºC to 40 ºC
Maximum Altitude2000 m (6562 ft) to full safety specifications
Display Size/TypeMain 5 digit + 2 x 5 digit secondary displays
Battery Type6 V, 7Ah sealed lead acid
Voltage Input Range100 – 240 V 50 / 60 Hz 90 VA
Charge Time8 hours
BacklightLED backlight
Battery Life>1000 Auto (3 sec) tests
Auto Power Down300s
Mode SelectionRotary switch
Range SelectionRotary switch
Weight6.7 kg
Case DimensionsL315 mm x W285 mm x H181 mm
Pouch for Test LeadsYes (lid mounted)
Test LeadsNOT SUPPLIED
IP RatingIP65 case closed, IP54 battery operation
Safety RatingIn accordance with IEC61010-1, CATIII 300V when used with optional terminal cover (details in ordering information)
Operating Temperature and Humidity-10 °C to +50 °C (14 °F to 122 °F) <90% RH
Reference Conditions20 °C ±3 °C
Storage Temperature and Humidity-25 °C to +60 °C, <90% RH
EMCIn accordance with IEC61326-1 (Heavy industrial)
Noise RejectionLess 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 Resistance100 mΩ total for 10 A operation irrespective of battery condition
  • Megger DLRO10HD Digital Low Resistance Ohmmeter
  • Robust, hard case with shoulder strap and lead set pouch
  • DLRO10HD User Guide CD
  • Warranty Book
  • Optional DH4-C Duplex Handspikes (select from menu)

🚚 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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