Whether you're testing circuit breaker contacts, switch contacts, busbar joints or simply measuring components for correct operation, the Megger DLRO200 is capable of carrying out comprehensive evaluation of low resistance levels.
Featuring three different measurement modes, the DLRO200 can be used to carry out continuous testing over a time period, conventional testing of single resistance levels and can carry out testing automatically with ramping current that adjusts as necessary to a conductor. Al tests are carried out using a four-terminal method, ensuring that the resistance of test leads is filtered out and the overall accuracy of a test is maintained.
Depending on the supply voltage used and the leads used the measurement range of the DLRO200 is from 0.1μΩ up to 999.9mΩ. Test current used varies from 10A up to a total of 200A and all results are shown on a built-in LCD screen on the top of the tester.
As well as comprehensive measurement functions Megger's DLRO200 also includes the ability to catalogue and interact with testing data. The tester allows storage of up to 300 individual test records on the device and it is possible to directly download this data into a PC or alternatively straight to a printer. An alpha-numeric keypad on the tester also allows the entry of notes associated with the stored information and allows adjustments to be made to values.
Megger DLRO200 Low Resistance Ohmmeter Key Features
- Measure insulation resistance from 0.1μΩ up to 999.9mΩ
- Variable test current from 10A to 200A
- LCD screen and alpha-numerical keypad
- 300 record memory with download
- 3 measurement modes: Continuous, Normal and Auto
- High resolution and accuracy
- RS232 communication
Full List of Products Included
- Megger DLRO200 Low Resistance Ohmmeter
- 5m (16.4Ft) Lead Set Comprising 2 x 50mm Current Leads with Clips and 2 Potential Leads with Clips
- Download Manager
- User Guide on CD-ROM
- RS232 Download Cable
- Quick Start Guide in English and French
Megger DLRO200 Technical Specifications
Measurement Range | 0.1 μΩ to 999.9 mΩ (Subject to supply voltage and leads used) |
Accuracy | Voltage ±0.5% ± 0.1 mV Current ±0.5% ± 0.1 A Resistance: Better than 1% from 300 μΩ to 100 mΩ Better than ±2% from 100 μΩ to 300 μΩ |
Current Lead Resistance (Megger Leads) | 2 x 5 m 25 mm2 current leads 8 m 2 x 5 m 50 mm2 current leads 4 mΩ 2 x 10 m 70 mm2 current leads 5.4 mΩ 2 x 15 m 95 mm2 current leads 6 mΩ |
Maximum Continuous Test Time | More than 10 minutes at 200 A @ 20 ºC ambient. |
Power Supply for DLRO200 for full output (unsmoothed DC) | 100 to 265 V 50/60 Hz with a load less than 19 mΩ (supply >207 V rms), or 11 mΩ (115 V rms) including current leads |
Power Supply for DLRO200-115V for full output (additional smoothing) | 100 to 130 V 50/60 Hz with a load less than 11 mΩ including current leads |
Test Modes | Manual, Auto, Continuous. |
Test Time | 10 seconds NORMAL /AUTO mode. Refreshed every 2 seconds in CONTINUOUS mode |
Display | Large, high resolution backlit liquid crystal display |
Warnings | Current flowing: - LED. Other warnings are shown on the lcd display |
Data Transfer | Real time or batch download via RS232 using Download Manager. |
Storage Capacity | 300 result sets and memo, battery backed for 10 years. |
Memo Field | 160 characters max. |
Test Current Range | 10 A to 200 A d.c. |
Accuracy | ±2% ±2 A |
Voltmeter Input Impedance | >200 kΩ |
Hum Rejection | 5 V rms 50 Hz/60 Hz |
Temperature Operation | -10 to +50 ºC (-14 to +122 ºF) |
Storage | -25 to +65 ºC (-13 to 149 ºF) |
Calibration | 20 ºC |
Co-Efficient | <0.05% per ºC |
Max Humidity | 95% RH non-condensing |
Max Altitude | 2000m |
Safety | IEC 61010-1 |
EMC | IEC61326-1 |
Dimensions | 410 x 250 x 270 mm (16.4 x 9.84 x 10.63 ins) |
Weight | 14.5 kg (excluding test leads) (31.97 lbs) |
Reviews
SKU | DLRO200-EN |
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Manufacturer Part Code | DLRO200-EN |
Model Ref | DLRO200 |
Country of Origin | United Kingdom |