MEGGER DLRO10HD Dual Power 10A Low Resistance Ohmeter

Model # DLRO10HD

High or low output power selection for condition diagnosis
Rechargeable battery or line power supply, continuous operation, even with dead battery
10 A for 60 seconds, less time waiting to cool, great for charging inductance

BrandMEGGER
Model NumberDLRO10HD

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High or low output power selection for condition diagnosis
Rechargeable battery or line power supply, continuous operation, even with dead battery
10 A for 60 seconds, less time waiting to cool, great for charging inductance
High input protection to 600 V, inadvertent connection to line or UPS voltage will not blow a fuse
Heavy duty case: IP 65 lid closed, IP54 operational (battery operation only)
Rotary switch selects one of five test modes, including auto start on connection, giving ease of use

Equally at home in the laboratory, the workshop or in the field, on the bench or on the ground, Megger’s new heavy duty DLRO10HD low resistance ohmmeter combines rugged construction with accuracy and ease of use. It features an internal rechargeable battery and can also operate from a mains supply, even if the battery is completely flat.

Electrical Specifications

Resistance/Current Ranges

The green resistance ranges on the keypad indicate low output power (<0.25 W) outputs. Red ranges indicate higher 2.5 W (1 A) and 25 W (10 A) power outputs.

Resolution and Accuracy

Test current accuracy ±10%
Voltmeter input impedance >200 kΩ

Test Current	Resistance Range	Resolution	Accuracy*	Full Scale Voltage	Max Power Output
0.1 mA	0 to 2500.0 Ω	100 mΩ	±0.2% ±200 mΩ	25 mV	2.5 µW
0.1 mA	0 to 250.00 Ω	10 mΩ	±0.2% ±20 mΩ	25 mV	2.5 µW
1 mA	0 to 25.000 Ω	1 mΩ	±0.2% ±2 mΩ	25 mV	25 µW
10 mA	0 to 2500.0 Ω	100 mΩ	±0.2% ±200 mΩ	25 mV	250 µW
100 mA	0 to 250.00 Ω	10 mΩ	±0.2% ±20 mΩ	25 mV	2.5 µW
1 A	0 to 25.000 Ω	1 mΩ	±0.2% ±2 mΩ	25 mV	25 µW
10 A	0 to 2500.0 Ω	0.1 mΩ	±0.2% ±0.2 mΩ	25 mV	0.25 µW
1 A	0 to 2500.0 Ω	100 mΩ	±0.2% ±200 mΩ	2.5 mV	2.5 µW
10 A	0 to 250.00 Ω	10 mΩ	±0.2% ±20 mΩ	2.5 mV	25 µW

* The accuracy stated assumes forward and reverse measurements. Inductive mode or undirectional mode will introduce an undefined error if an external EMF is present.

General Specifications

Temperature Coefficient

< 0.01% per ºC, from 5 ºC to 40 ºC

Maximum Altitude

2000m (6562 ft) to full safety specifications

Display size/type

Main 5 digit + 2 x 5 digit secondary displays

Battery type

6 V, 7Ah sealed lead acid

Mains voltage input range

90 – 264 V, 50-60 Hz

Charge time

8 hours

Backlight

LED backlight

Battery life

1000 Auto (3 sec) tests

Auto power down

300s

Mode Selection

Rotary switch

Range selection

Rotary switch

Weight

6.7 kg

Case dimensions

L315mm x W285mm x H181mm

Pouch for test leads

Yes (lid mounted)

Test leads

DH4 lead set included

IP rating

IP65 case closed, IP54 battery operation

Safety rating

In accordance with IEC61010-1, CATIII 300 V when used with DH7 leads

Operating temperature and humidity

+5ºC to +45ºC (41ºF to 113ºF) at full specification, -10°C to +50°C (14°F to 122°F) at reduced accuracy of ±0.5%, <90% RH

Storage temperature and humidity

-25°C to +60°C, <90%RH

EMC

In accordance with IEC61326-1 (Heavy industrial)

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.

Maximum lead resistance

100 mΩ total for 10 A operation irrespective of battery condition.

Tech Specs

Micro / Milli / Meg Ohmmeters/Micro-Ohmmeter / DLRO / Bond Testing Template
Style (Micro-Ohmmeter)	Portable
Maximum Test Current	10 A
Variable Test Current	Yes
Min Resistance	0.1 u Ohms (0.00010 m Ohms)
Max Resistance (ohm)	2500.0 Ohms
Alarm	No
Temperature Compensation	No
Line Power or Battery power	Battery Power, Line Power
Kelvin Four-Terminal Measurement	Yes