DLRO10X, Without Lead Set Ducter Ohmmeter

DLRO10X Digital Microhmmeter, without Lead Set.

The Megger DLRO10X sets the standard for low-resistance "Ducter" measurement — a tradition Megger has owned since registering the Ducter trademark in 1908. Fully automatic 4-terminal Kelvin technique covers 0.1 µΩ to 2000 Ω across seven ranges with up to 10 A DC test current and 0.2 % basic accuracy. Auto current reversal cancels standing EMFs across the test sample, and continuity is auto-detected on both potential and current connections.

Compared with the DLRO10, the DLRO10X adds a large color display, manual measurement control, RS232 data download, on-board storage for 700 tests with up to 200-character notes per test (entered via integral alphanumeric keypad), user-settable high / low pass limits for go/no-go testing, and a unique unidirectional measurement mode.

Five measurement modes: Normal, Auto (probes-on-contact start), Continuous (3-second update on the same sample), Inductive (waits for voltage stabilisation on inductive loads), and Unidirectional (single-direction current for fast measurement). Average measurement displayed within 3 seconds.

This 1006-659 part number is the no-leadset variant (DLRO10X-NLS) — order separately from Megger's duplex-connect 4-terminal lead system to match your application: duplex handspikes, kelvin clips, or extension leads up to 30 m. Ships with a 5.2 Ah Li-ion battery module (typical 1300 × 10 A tests per charge), external 90–260 V charger, and a battery-state indicator visible without connecting to the instrument.

CAT III 600 V (when used with DH6 leads), IP65 case-closed / IP54 battery-operation, +5 °C to +45 °C full-accuracy operating range. 220 × 100 × 237 mm; 2.6 kg with battery. Optional DLRO10LPU mains adapter (US plug, P/N 1003-171) replaces the battery for production-line and repetitive-testing applications.

Applications include switch and contact-breaker resistance, busbar and cable joints, aircraft frame bonds, welded-joint integrity, inter-cell connections on battery systems up to 600 V peak, motor and transformer winding resistance, rail and pipe bonds, and metal-alloy / fuse / wire / cable resistance.

The Megger DLRO10X, Without Lead Set Ducter Ohmmeter # 1006-659 is manufactured by Megger. Valley Instrument Service is an authorized Megger dealer offering full sales support, NIST-traceable calibration, and expert technical assistance.