Megger DLRO 600A Micro-Ohmmeter

From $185 (AUD ex GST per day. Weekly and monthly rates available.)

Tier 1: 1-7 days
$185 (AUD ex GST)
Tier 2: 8-14 days
$166.5 (AUD ex GST)
Tier 3: 15-28 days
$138.75 (AUD ex GST)
Tier 4: 29-90 days
$116.55 (AUD ex GST)
Megger DLRO 600A Micro-Ohm Meter. Hire from Megavar for high-current resistance testing on HV circuit breaker contacts and busbars in Australia.
Description
The DLRO 600A is a high‑current micro‑ohmmeter engineered for measuring extremely low resistances under real high‑current conditions. With test currents up to 600 A DC, it is ideal for testing critical high‑current connections such as circuit‑breaker contacts, busbar joints, switchgear connectors, transformer windings and large welded conductors. Despite its powerful output, the unit remains compact and portable, making it field‑ready for substations and industrial environments. This model features selectable test currents from 10 A up to 600 A, and it measures resistance in the micro‑ohm range down to approximately 0.1 µΩ. It uses a four‑terminal (Kelvin) measurement technique to eliminate test‑lead resistance error, ensuring excellent accuracy even at very low resistances. Typical applications include verifying contact resistance of high‑voltage circuit breakers, performing busbar joint testing, assessing welded connections in large conductors and conducting bonding or earthing system checks in industrial installations.
  • Test currents from 10 A to 600 A DC (subject to load and supply)
  • Measurement range approximately 0.1 µΩ to 1 Ω (depending on leads and conditions)
  • Four‑terminal (Kelvin) measurement method to cancel lead resistance
  • On‑board memory for up to 300 test results with alphanumeric notes
  • USB or RS232 interface for real‑time output or data download
  • Rugged portable design (weighs less than ~15 kg) for field use
  • Manual, Auto and Continuous test modes for flexibility
  • Large back‑lit display with intuitive menu navigation
  • Supplied with heavy‑duty current/potential leads and carry case
  • Ideal for field or substation use where high‑current verification is required
No content available.
No content available.
No content available.
Hiring for 3, 6, or 12 months? Call for project rates: 1300 730 499

Enquire about Megger DLRO 600A Micro-Ohmmeter Hire

Tell us about your project and we will get back to you within 24 hours with availability and a quote.

Or call us directly on 1300 730 499

Need help with your rental?

We’re available Mon – Fri 8am – 5pm

Australian engineering team
Calibrated and traceable to NMI
Pre-hire briefing on every order
Australia-wide delivery

Megavar engineers use this unit on commissioning projects across Australia. Hire it from a team that knows it inside out.

Calibration

All Megavar test equipment is maintained under a documented calibration programme. Instruments are calibrated either by external calibration laboratories or in-house against reference standards that are themselves laboratory-calibrated, with measurement traceable to Australian national measurement standards held by the National Measurement Institute. A current calibration certificate is available on request. If your project requires a specific calibration interval, test standard, or documentation for a client submission, tell us at enquiry on 1300 730 499 and we will confirm what applies before you commit.

Ask an Engineer

Have a setup or application question about this instrument? Talk directly to a Megavar commissioning engineer — no call centre, no guesswork.

1300 730 499

Frequently Asked Questions
Megger DLRO 600A Micro-Ohmmeter

What does the DLRO 600A measure?

It measures very low resistance values using high test current to validate high‑current connections, contact surfaces and joints.

It can output up to 600 A DC (subject to load and test conditions), which ensures highly accurate resistance measurement in large conductors.

Higher test current reduces measurement errors from contact and lead resistance, and gives a more realistic representation of performance in high‑current systems.

Yes. The unit is compact (less than ~15 kg) and ruggedised, making it suitable for substation, industrial or remote site deployment.

Results (up to 300 records) can be stored in onboard memory with notes, and then downloaded via RS232 or USB for reporting and analysis.

The rental package includes the DLRO 600A main unit, high‑current test leads and Kelvin clamps, power cable/charger, USB or RS232 download cable, carry case and quick‑start guide.

Yes. We provide remote or onsite support for setup, connection guidance and interpretation of results as required.

The standard minimum hire period is 3 days. Weekly or monthly hire rates are available at discounted pricing for extended projects.

Yes. The equipment is available for national delivery and pickup across Australia. Freight options can also be arranged.

A security deposit may apply depending on rental duration and account status. For high‑value equipment, proof of business insurance may be requested.

A Tailored Hire Experience That Works for You

At Megavar, our dedicated test equipment hire division provides high-quality electrical testing instruments for both short and long-term use. Backed by deep industry expertise, our team ensures you receive the right tools with the right advice, every time. From fast dispatch to full technical support, our hiring process is streamlined to get you up and running quickly and confidently.
 
  • Rapid delivery and collection
  • Door-to-door freight for minimal downtime
  • Fast, simple bookings
  • Place an order and we’ll handle the rest
  • Rent, try or buy
  • Test the equipment before committing to purchase
  • Expert support
  • Technical help is just a call away when you need it.

Our 3-step easy process

Hiring Made Easy in 3 Simple Steps

Step 1: Request a Quote

Submit your rental request online, and our team will respond promptly with availability, pricing, and expert advice.

Step 2: Organise Your Rental

Once confirmed, we’ll quickly process your booking and dispatch the equipment. Delivery and collection can be arranged to suit your schedule.

Step 3: Use with Confidence

Get to work with reliable, industry-grade test equipment. Our technical team is available to support you every step of the way.

Explore Our Services

Independent factory acceptance testing for HV transformers, switchgear, protection panels, and SCADA. Expert witness testing at manufacturer facilities in Australia and internationally.

HV substation design and engineering across Australia: primary plant, secondary protection and SCADA. Megavar designs and delivers the full package.

Solar farm HV maintenance and testing: transformer diagnostics, switchgear testing, protection relay verification, thermography, and DGA monitoring for solar farms across Australia.

Trusted by top enterprises for exceptional results

AusNet logo - Megavar client
ABB logo - Megavar client
ElectraNet logo - Megavar client
Fluence logo - Megavar client
RJE Global logo - Megavar client
NYRStar logo - Megavar client
Schneider Electric logo - Megavar client
Acciona logo - Megavar client
RBD Electrical logo - Megavar client
Ventia logo - Megavar client
Grange logo - Megavar client
Alcoa logo - Megavar client
Zinfra logo - Megavar client
Bison Energy Company logo - Megavar client
Hydro Tasmania logo - Megavar client
TasNetworks logo - Megavar client
Vestas logo - Megavar client
Goldwind logo - Megavar client
Downer logo - Megavar client
ENERVEN logo - Megavar client
Genus logo - Megavar client

Explore the latest insights