Motwane’s LR 2045-S is a Digital Micro-Ohmmeter provided with maximum 1A DC current injection and works on the principle of the four wire technique. The four wire technique makes it possible to accurately measure resistance values less than 0.1 Ω while eliminating the inherent resistance of the lead wires connecting the measurement instrument to the component being measured. This instrument is protected against back EMF during inductive measurement and heat run test, which is suitable for resistance measurements of inductive and resistive loads. It has a 4 ½ digits LED display, and resistance measuring range from 1μΩ to 2000Ω. It is user-friendly equipment with a USB for PC interface. The windows based data management software is provided for recording the test results data, and report generation.
Micro Ohmmeter is generally used for bonding contact applications and for measuring extremely low resistance with high accuracy at particular test currents. It is a small portable device that measures resistance and voltage. Typical applications include the measurement of:
|Range||Resolution||Accuracy ±(%rdg + Digits)||FS rdg.||DC current applied DUT Max||Power dissipation in the sample at Midscale.|
|20 mΩ||1 μΩ||±(0.05+5)||19.999 mΩ||1 A||10 mW|
|200 mΩ||10 μΩ||±(0.05+5)||199.99 mΩ||1 A||100 mW|
|2000 mΩ||100 μΩ||±(0.05+5)||1999.9 mΩ||100 mA||10 mW|
|20 Ω||1 mΩ||±(0.05+5)||19.999 Ω||10 mA||1 mW|
|200 Ω||10 mΩ||±(0.05+5)||199.99 Ω||1 mA||0.1 mW|
|2000 Ω||100 mΩ||±(0.05+5)||1999.9 Ω||100 µA||10 µW|
Note: Accuracies are valid from 1/10 of the range to FS of range & valid at
Temperature:25◦ C ± 3◦ C at 55%±10%RH
Temperature Coefficient :100ppm/ ◦C
Warm up time for stated accuracy -10 mins
Open Circuit Voltage: 15Volt ± 3volt
Display: Large seven segment LED display
4 ½ inch digits display
Max. display in digit 19999
Display update rate: 2.5 times / second
LEDs for range and Ω / mΩ indication
LED indication for operation and pulse mode.
Over range indication: Blinking zero display.
Under Range Indication: All display shows zero. (Not blinking)
Protection against back EMF
Instrument protected against mains overload(Fuse250mA).
All ranges are fuse protected. (Input fuse 1A).
230 VAC ± 10%, 50Hz, single phase supply.
Dimensions (H X W X L): 210 mm X 290 mm X 360 mm
Net Weight: 5.0kg (Approx)
Operating Temperature:0 ◦ C -40 ◦ C.
Storage Temperature: 0 ◦ C – 55 ◦ C.
Humidity: Less Than 95% RH non condensing
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