Megger Digital Low Resistance Ohmmeters (DLRO) are a family of highly accurate instruments that provide a simple, practical and reliable means of making low-resistance tests in the field. They also are ideal for production quality control. They operate on the four-wire measurement principle, thus eliminating lead and contact resistances. With basic accuracies of ±0.25% and resolution down to 0.1 µΩ, they are nonetheless designed to be rugged and portable for use at the job site.
They operate on the four-wire measurement principle, thus eliminating lead and contact resistances. With basic accuracies of ±0.25% and resolution down to 0.1 µΩ, they are nonetheless designed to be rugged and portable for use at the job site. A variety of optional test leads and calibration resistance standards are offered for use with DLROs.
| Key Features |
| Resolution to 0.1 µΩ on 599.9 µΩ range |
| Standard accuracy of ±0.25% |
| Digital readout |
| Kelvin-type, four-wire measurement eliminates errors caused by lead and contact resistances. |
| Broad line of test leads is available to simplify and enhance data collection. |
| Specifications |
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247000 Series
Digital Low Resistance Ohmmeters
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| Cat No. | Model | Resistance
Range
| Resolution | Current | Accuracy | Power Source | Dimensions
Weight
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| 247000 | Dual-pak | 0-5.999mΩ
0-59.99mΩ
0-599.9mΩ
0-5.999Ω
0-59.99mΩ
| 1μΩ
10μΩ
0.1mΩ
1mΩ
10mΩ
| 10A
1A
100mA
10mA
1mA
| 0.25% of reading = 1 LSD | Rechargeable batteries with separate charger | H12.0”
W10.6”
D7.6”
14.98 lb
(6.79 kg)
H30.5cm
W27.0cm
D19.4cm
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| 247001 | Single-pak | 0-5.999mΩ
0-59.99mΩ
0-599.9mΩ
0-5.999Ω
0-59.99mΩ
| 1μΩ
10μΩ
0.1mΩ
1mΩ
10mΩ
| 10A
1A
100mA
10mA
1mA
| 0.25% of reading = 1 LSD | Rechargeable batteries with internal charger | H12.0”
W6.0”
D10.0”
12 lb
(5.5kg)
H30cm
W16cm
D25cm
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| 247002 | Single-pak
low range
| 0-599.9μΩ
0-5.999mΩ
0-59.99mΩ
0-599.9mΩ
0-5.999Ω
0-59.99mΩ
| 0.1μΩ
1μΩ
10μΩ
0.1mΩ
1mΩ
10mΩ
| 10A
10A
1A
100mA
10mA
1mA
| 0.3% of reading = 1 LSD | Rechargeable batteries with internal charger | H12.0”
W6.0”
D10.0”
12 lb
(5.5kg)
H30 cm
W16 cm
D25 cm
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| Specifications |
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| 247000 Series Digital Low Resistance Ohmmeters |
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| Model Overview |
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| Model / Part Number | Description |
| DLRO Digital Low Resistance Ohmmeters |
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| 247000 | Dual-Pak, battery-operated (10A) |
| 247001 | Single-Pak, battery-operated (10A) |
| 247002 | Single-Pak/Low-Range, battery-operated (10A) |
| Included Accessories |
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| 17032 | Line cord, where applicable |
| AVTM24-1J | Instruction manual |
| Optional Accessories |
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| Add –11 | Input voltage protection for Cat. No. 247000, 247001 and 247002 only |
| Add –47 | 230 V (nominal), 50/60-Hz operation |
| 35788 | Canvas carrying case for Cat. No. 247000 |
| 18313 | Carrying case for leads |
| 249000* | Field test shunt, 10 Ω, current rating 0.001 A |
| 249001* | Field test shunt, 1 Ω, current rating 0.01 A |
| 249002* | Field test shunt, 0.1 Ω, current rating 1 A |
| 249003 | Field test shunt, 0.01 Ω, current rating 10 A |
| 249004 | Field test shunt, 0.001 Ω, current rating 100 A |
| 249005 | Field test shunt, 0.0001 Ω, current rating 500 A |
| CERT-NIST | Certificate of Calibration, NIST |
Note:
* Furnished with protective shield
