Megger DLRO10 Low Resistance Ohmmeter

The Megger DLRO10 bring new standards to low resistance measurement. A fully automatic instrument, selecting the most suitable test current, up to 10A dc to measure resistance from 0.1?Ω to 2000Ω on one of seven ranges. The DLRO10 is built into a strong, lightweight case that is equally at home in the field or in the laboratory. Light enough to be worn around the neck, they are small enough to be taken into areas which were previously too small to access. The Megger DLRO 10 uses a large, bright 4-1/2-digit LED display. A full range of test leads is available with probes, clamps and Kelvin clips. The Megger DLRO10 is powered by a rechargeable Nickel Metal Hydride (NiMH) battery, which permits one thousand 10 Amp tests to be completed on a single charge. The battery module contains intelligent circuitry, which prevents damage to the battery from overcharging, and a battery state indicator. A removable lid that is hinged at the back and held closed by magnetic catches covers the top panel. This lid may be removed if required by opening fully and snapping out of its hinges. FEATURES Accurate results in under three seconds. Auto current reversal cancels standing emfs. Fuse protected to 600 V. NiMH battery reduces weight. 250 mW power limit (with optional override) to avoid heating the test sample. Automatically detects continuity in potential and current connections. Visible warning of high voltages present at the terminals. Visible warning of current flowing in the test sample. Multiple operating modes including fully automatic. Functionality Table Resistance Ranges Full Scale Volts Test Current Full Scale Resolution Accuracy* Resistive Inductive Resistive Inductive 1.9999 mΩ 0.1 µΩ +0.2% +0.2µΩ 20 mV n/a 10 A n/a 19.999 mΩ 1 µΩ +0.2% +2 µΩ 20 mV 20 mV 1 A 1 A 199.99 mΩ 10 µΩ +0.2% +20 µΩ 20 mV 200 mV 100 mA 1 A 1.9999 Ω 100µΩ +0.2% +0.2 mΩ 20 mV 200 mV 10 mA 100 mA 19.999 Ω 1 mΩ +0.2% +2 mΩ 20 mV 200 mV 1 mA 10 mA 199.99 Ω 10 mΩ +0.2% +20 mΩ 20 mV 200 mV 100 µA 1 mA 1999.9 Ω 100 mΩ +0.2% +0.2 Ω 200 mV 200 mV 100 µA 100 µA Megger DLRO10 Specifications Measurement Mode Manual, Auto, Continuous, Inductive. Control Fully Automatic. Speed <3s for forward & reverse current and to display average. Display Measurement: 4 1/2 digit seven segment LED. Range & Safety LED indication. Test method Single cycle reversing d.c. ratiometric measurement -average result display. Test current accuracy +10%. Test current stability <10 ppm per second. Lead resistance Maximum 100 mΩ total for 10 A operation irrespective of battery condition. Voltmeter Input Impedance > 200 kΩ. 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. Battery Capacity 7 Ah NiMH rechargeable. Battery Life Typical 1000 x 10A Tests Before Recharge. Recharge Via external 90 V - 260 V 50/60 Hz charger or from 12 to 15 V dc supply. Standard Charging Rate 2.5 hours to 90% capacity, 4 hrs for full charge. Temperature +5 °C to +45 °C (41 °F to 113 °F) at full specification -10 °C to +50 °C (14 °F to 122 °F) at reduced accuracy. Storage Co-Efficient -30 °C to +70 °C (-22 °F to 158 °F). Slow Charging <0.01% per °C over range 5 °C to 40 °C (<0.006% per °F from 4 1°F to 104 °F). Humidity (MAX) +10 °C to +45 °C (50 °F to 113 °F). Altitude (MAX) 90% RH @ 40 °C (104 °F) non-condensing. Safety 2000 m (6562 ft) to full safety specifications. EMC IP65 case closed, IP54 battery operation. Dimensions 220 x 100 x 237 mm (8.6 x 4 x 9.5 in). Weight 2.6 kg (5 3/4 lb.) including battery module. Megger DLRO10 warranty 2 year, conditional upon registering.

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