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The Megger DLRO100HB Digital Low Resistance Ohmmeter is a resistance analysis device featuring 0.1 μΩ - 1.999 Ω measurement, high noise immunity, IP54 moisture and dust protection. The device's smooth DC output is ideal for applications like circuit testing. Megger DLRO100HB ohmmeters enable low resistance measurement in areas without access to mains power, an Li-Ion battery supplying a constant current of 100 A to enhance productivity in remote locations. Technicians can choose from three modes. Manual mode allows technicians to initiate test procedures as soon as the probes are in contact with the device under test. Auto mode lets the user decide the desired current, and as potential leads are connected, testing auto-starts. Continuous mode begins testing the moment the probes are connected and the test button is pressed. Megger DLRO100HB models are IEC61010 compliant and safe for operation in harsh environments and under adverse conditions, adhering to the CAT IV 600 VAC / 500 VDC requirement.
Features
- Meets CAT IV 600 VAC / 500 VDC safety standards
- Portable, lightweight 100 A battery-powered unit
- High noise immunity for stable readings
- Smooth DC Output for circuit breaker testing
- IP54 for protection against dust and moisture
- Save, download and delete results (100X/H variants)
- Remote operation, Bluetooth® & asset/result tagging (100H variants)
Specifications
| Measurement range | 0.1 μΩ - 1.999 Ω |
| Resolution | 0.1 μΩ |
| Noise rejection | Differential 100 mV @ 50-60 Hz on Test Leads |
| DC output | Smooth DC |
| IP rating | IP54 Lid open / IP65 Lid closed |
| Operating temperature range | -20°C up to 50°C |
| Storage temperature range | -30°C up to 70°C |
| Humidity | <85% R.H. non-condensing |
| Battery life | 200 single 100 A tests or up to 2x 10 minutes continuous 100 A output |
| Battery type | User replaceable Li-ion battery pack |
| Battery charge time | Full charge in 2.5 Hrs from flat |
| Maximum output voltage | 2 V (battery), 3 V (AC) |
| EMC | IEC61326-1 |
| Safety | IEC61010, CAT IV 600 VAC / 500 VDC up to 2000 m, CAT IV 300 V up to 4000 m |
| Dimensions | 400 x 300 x 200 mm |
| Weight | 7.0 kg (AC Only) 7.9 kg (with Battery) |
Standards
- Utilities & Service Contractors
- Switchgear and circuit breaker contact resistance
- Busbar and cable joints
- Wire and cable resistance
- Lightning conductor bonding
- Original Equipment Manufacturers
- Production test of circuit breakers – contacts & joints
- Production test of high voltage switchgear
- Production test of welded joints & connections
- Transport Technicians
- Railway rolling stock ground connections & manufactured joints
- Railway lines & conductor rails – commissioning & maintenance
- Aircraft frame bonds and static control circuits