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Megger DLRO100X
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$3.350
High-current 100A low resistance ohmmeter with DualGround, USB storage, and IP54 protection — ideal for switchgear and substation testing.
Megger DLRO100X – DualGround Digital Low Resistance Ohmmeter (AC Operated, 100A)
The Megger DLRO100X is a high-performance, AC-powered digital low resistance ohmmeter designed for accurate measurements of low-resistance connections in high-current electrical systems. Featuring DualGround capability, smooth DC output, and a wide measurement range from 0.1 µΩ to 1.999 Ω, this instrument is ideal for use in substations, switchgear, circuit breakers, and busbar joints.
With selectable 10A, 50A, and 100A test currents, intuitive rotary control, and IP54 protection (open lid) for harsh field conditions, the DLRO100X streamlines the task of low-resistance testing while ensuring safety and precision. It includes built-in USB data download, memory storage, and CAT IV 600V safety rating.
🔧 Key Features:
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High-accuracy low-resistance testing up to 100 A
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Wide measurement range: 0.1 µΩ to 1.999 Ω
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DualGround testing with DC clamp for operator safety
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Smooth DC output for stable results
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High noise rejection: 100 mV differential at 50–60 Hz
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Simple rotary switch for current selection and results navigation
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Large, high-contrast display visible in all lighting
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IP54-rated for field use (open) and IP65 when closed
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USB download, result storage, and multilingual interface
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Supplied with calibration certificate and quick-start guide
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Test leads sold separately
📘 Related Resources:
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🔌 Explore more in our Microohmmeters / DLROs category
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📄 Read: The Complete Guide to Electrical Test Equipment for Industrial Applications
📦 What’s in the Box:
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Safety warning sheet
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Product registration card
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Factory test certificate (non-NIST)
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Quick start guide
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CD with user manual (EN, ES, PT, IT)
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Accessories leaflet
Note: Test leads must be ordered separately.
📐 Technical Specifications:
| Parameter | Value |
|---|---|
| Test Current | Selectable: 10 A, 50 A, 100 A |
| Measurement Range | 0.1 µΩ to 1.999 Ω |
| Resolution | 0.1 µΩ |
| Power Supply | AC mains |
| Battery Option | No (AC model) |
| Output Voltage | Max 3 V AC |
| IP Rating | IP54 (open), IP65 (closed) |
| Display | Large digital display |
| Safety Rating | CAT IV 600 V / 500 VDC |
| EMC | IEC61326-1 |
| Operating Temp | -20°C to +50°C |
| Weight | 15.4 lb (7.0 kg) |
| Dimensions | 16 × 12 × 8 in (400 × 300 × 200 mm) |
| Country of Origin | United Kingdom |
The Megger DLRO100X is trusted across industries for its speed, accuracy, and safety in high-current low-resistance testing. Perfect for both commissioning and maintenance teams working in demanding environments.
Returns Policy
We accept returns within 30 days of delivery. To qualify, items must be unused, in their original condition, and returned with all original packaging and accessories.
Once we receive and inspect the returned item, we will process your refund within 7 business days. Refunds will be issued to the original payment method.
Please note: Shipping costs are non-refundable unless the return is due to a defective or incorrect item.
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