Megger DLRO100XB Digital Micro-Ohmmeter


Megger authorised distributor and service centre.

The Megger DLRO100 range of Low Resistance Ohmmeters provide high accuracy with noise immunity, are robust yet light and portable.

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£ 4,160.00

(£ 4,992.00 inc VAT.)

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DLRO100XB  - All Features in the E model, but without asset tagging, Bluetooth® download and USB remote operation found in the DLRO100 H models.

A significant addition to the comprehensive range of Megger Low Resistance Ohmmeters, the DLRO100XB enables low resistance measurement, across multiple applications, in areas without access to mains power. The integral Li-Ion battery supplies a constant 100 A current for up to 200 Manual/Auto tests to enable enhanced productivity in remote locations.

With a focus on user safety, advanced design features ensure the safe operation of the instrument in the most adverse conditions, megger dlro 100 terminalsincluding a CAT IV 600 VAC / 500 VDC safety rating in accordance with IEC61010. The rugged design, intuitive interface and IP54 (lid open) rating ensure reliability and ease of use in the most arduous of conditions.

A new terminal adapter has been designed to enable the use of users own test leads (see image on right).


CAT IV 600 VAC / 500 VDC up to 2000 m on all test terminals for safe operation.
CAT IV 300 V up to 4000 m.
Li-ion battery for high power and fast charge - works from an AC supply if the battery is fully discharged.
High noise immunity for stable readings.
Smooth DC Output for circuit breaker testing.
IP54 (lid open) for protection against ingress during operation (IP65 lid closed).
Adjustable 10 - 100 A output, 4 terminal measurement for flexibility.
Adjustable current ramp rates and test duration for flexibility.
Battery capacity - 200 single tests or up to 2x 10 minutes continuous 100 A output for extended use.
Mains only units for manufacturing and production applications where AC is always available.
Ultra tough outer case construction designed for use in demanding environments with a flame retardant UL94 V0 inner case for safety.
DualGround™ - Using the optional DC clamp enables circuit breaker testing with ground protection in place for safety.
Large, clear LCD for all light conditions.
Time and Date stamped memory for recording of results (220 readings).
Range and test mode rotary switches for simplicity of operation.
Memory Storage and USB download capability for effective results management.

Megger DLRO100 XB Specifications:

  • Measurement range: 0.1 μΩ - 1.999 Ω.
  • Resolution; 0.1 μΩ.Megger DLRO 100 Models
  • 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.
  • Save, download and delete results.
  • Dimensions: 400 x 300 x 200 mm.
  • Weight: 7.9 kg (with Battery).
  • Megger DLRO100XB Warranty: 2 year (second year conditional on registration).


Includes: Megger DLRO100, Certificate of Test, Quick Start Guide, Calibration Certificate, CD containing the User Guide, Mains lead, USB Cable.

NB: Lead set is NOT included with the instrument and must be ordered as an optional accessory.


Optional Accessories Order Code    
DLRO100 CAT IV 600V Lead Set (5m) 1004-448
DLRO100 CAT IV 600V Lead Set (10m) 1004-449
DLRO100 CAT IV 600V Lead Set (15m) 1004-450
DLRO100 Terminal adapters (x2) 1005-555
DLRO100 CAT IV 600 V Kelvin Lead Set (5m) 1005-634
DLRO100 CAT IV 600 V Kelvin Lead Set (10m) 1005-635
DLRO100 CAT IV 600 V Kelvin Lead Set (15m) 1005-636
DLRO100 DC Clamp (MCPD 100L) 1005-622
DLRO100 Lithium Ion Battery Pack 1005-973

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Megger DLRO100XB Digital Micro-Ohmmeter