Product Code: MEGDLRO200
Available In 3-7 Days
The Megger DLRO200 is a 200 A micro-ohmmeter that measures resistances between 0.1 µΩ and 1 Ω at high currents. This versatile instrument can provide test currents from 10 amps up to 200 amps DC subject to the load resistance and supply voltage. The DLRO200 also uses a four-terminal measurement technique to cancel the resistance of the test leads from the measurement.
The unique design of the DLRO200 allows the weight and size to be kept to a minimum - the instrument weighs less than 15 kg. This small size makes the DLRO200 equally at home in the workshop, on the production floor, or in the field, and its high current capability and compact design make it suitable for testing circuit breaker contacts, switch contacts, busbar joints, and other applications where high current is needed.
A large LCD screen provides all the information needed to perform a test; all test parameters and measurement results are displayed. What's more, 300 sets of results may be stored in the DLRO200's on-board memory for later download to a PC or it can be output directly to a printer via the RS232 port. You may also add notes to any stored result by using the on-board alphanumeric keypad, thereby making later identification of results straightforward. Additionally, this keypad allows you to set the test current directly by typing in the value required. The DLRO200 will then check the continuity of the test circuit and will quickly ramp the test current up to the desired level. The keyboard is also used to set upper and lower limits for the result and to prevent the use of excessive currents by setting an upper limit to the allowable test current.
| 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) |
| UK Mainland | Order by 2pm for Next Day Delivery* |
|---|---|
| Under £25.00 | £4.50 |
| Over £25.00 | FREE |
| UK Highlands & Islands | Order by 2pm for Next Day Delivery* |
|---|---|
| Under £80.00 | £15.00 |
| Over £80.00 | FREE |