Measures resistances between 0.1 μΩ and 1 Ω, at high currents, this versatile instrument can provide test currents from 10 up to 200 A subject to the load resistance and supply voltage. The large liquid crystal display provides all the information needed to perform a test.
Measures resistances between 0.1 μΩ and 1 Ω, at high currents, this versatile instrument can provide test currents from 10 up to 200 A subject to the load resistance and supply voltage. The large liquid crystal display provides all the information needed to perform a test.
Discontinued!
This product has been discontinued and is no longer available. There is no direct replacement. Don't worry, we have some options to help you find what you need:
Visit our Ohmmeters category for similar products.
Or let's do a search and help you find what you need:
A versatile instrument that provides test currents from 10 up to 200 A subject to the load resistance and supply voltage. A large LCD displays all test parameters and measurement results. The high current capability and compact design make it suitable for testing circuit breaker contacts, switch contacts, busbar joints, or other applications where a high current is needed.
Features
Test Modes
The microhmmeter operates in one of three modes, which are simply selected from the on screen menu.
CONTINUOUS mode is provided for users who wish to monitor a resistance over a period of time. Connect the test leads, select the test current and press the TEST button. It will pass a current continuously, and measure the resulting voltage at 2-second intervals, until the test button is pressed to stop the test or the test circuit is interrupted.
In NORMAL mode you connect the leads, select the test current and press the TEST button. The test current will ramp up to the desired level, hold for two seconds and then ramp down. The whole process takes approximately 10 seconds.
In AUTO mode select the desired current, connect the current leads and press the TEST button. The TEST lamp will flash to show that the microhmmeter is ready to carry out a test. As soon as the potential leads are connected, a test will start. To repeat a test, simply break contact with the voltage probes and remake contact.
Measuring individual joints in a busbar is a good example of the convenience to be gained by using AUTO mode. The two current leads are connected to the ends of the busbar. They will remain connected here until all tests have been completed. When the voltage leads make contact across a joint, it detects that all four leads are connected, carries out a test and stops. When you move to the next joint DLRO detects the new completed circuit automatically and carries out the next test, and so on until all joints have been tested. The results may be stored automatically and may be recalled to the display or downloaded for review.
Applications
| Measurement | |
| Range | 0.1 μΩ to 999.9 mΩ (subject to supply voltage and leads used) |
| Spécifications générales | |
| Coefficient | <0.05 % par °C |
| General Specifications | |
| Co-Efficient | <0.05% per °C |
| Measurement | |
| 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 to 300 μΩ |
| Current Lead Resistance | 4 mΩ |
| Maximum Continuous Test Time | More than 10 minutes at 200 A and 20°C ambient |
| Test Modes | Manual, Auto, Continuous |
| Test Time | 10 seconds NORMAL/AUTO mode. Refreshed every 2 seconds in CONTINUOUS mode |
| Test Current | |
| Range | 10 to 200 A DC (dependant on load and input voltage) |
| Accuracy | ±2% ±2 A |
| Voltmeter Input Impedance | >200 kΩ |
| Hum Rejection | 5 Vrms 50/60 Hz |
| General Specifications | |
| 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 maximum |
| Temperature | Operating: -14 to 122°F (-10 to 50°C) Storage: -13 to 149°F (-25 to 65°C) |
| Calibration | 20°C |
| Maximum Humidity | 95% RH non-condensing |
| Maximum Altitude | 6561.68' (2000 m) |
| Safety | IEC61010-1 |
| EMC | IEC61326-1 |
| Dimensions | 16.4 x 9.84 x 10.63" (410 x 250 x 270 mm) |
| Weight | 31.97 lbs (14.5 kg), excluding test leads |
Click on a category to view a selection of compatible accessories with the Megger DLRO200 Digital Micro-Ohmmeter with French keyboard, 0.1 μΩ to 999.9 mΩ.
| Measurement | |
| Range | 0.1 μΩ to 999.9 mΩ (subject to supply voltage and leads used) |
| Spécifications générales | |
| Coefficient | <0.05 % par °C |
| General Specifications | |
| Co-Efficient | <0.05% per °C |
| Measurement | |
| 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 to 300 μΩ |
| Current Lead Resistance | 4 mΩ |
| Maximum Continuous Test Time | More than 10 minutes at 200 A and 20°C ambient |
| Test Modes | Manual, Auto, Continuous |
| Test Time | 10 seconds NORMAL/AUTO mode. Refreshed every 2 seconds in CONTINUOUS mode |
| Test Current | |
| Range | 10 to 200 A DC (dependant on load and input voltage) |
| Accuracy | ±2% ±2 A |
| Voltmeter Input Impedance | >200 kΩ |
| Hum Rejection | 5 Vrms 50/60 Hz |
| General Specifications | |
| 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 maximum |
| Temperature | Operating: -14 to 122°F (-10 to 50°C) Storage: -13 to 149°F (-25 to 65°C) |
| Calibration | 20°C |
| Maximum Humidity | 95% RH non-condensing |
| Maximum Altitude | 6561.68' (2000 m) |
| Safety | IEC61010-1 |
| EMC | IEC61326-1 |
| Dimensions | 16.4 x 9.84 x 10.63" (410 x 250 x 270 mm) |
| Weight | 31.97 lbs (14.5 kg), excluding test leads |
Click on a category to view a selection of compatible accessories with the Megger DLRO200 Digital Micro-Ohmmeter with French keyboard, 0.1 μΩ to 999.9 mΩ.
