Low Resistance Ohmmeters
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Free UK DeliveryMegger DLRO100H & DLRO100HB Datalogging Low Resistance Ohmmeters£6,216.00 £5,180.00
- Two versions available - AC or battery powered
- Measurement range of 0.1μΩ to 1.999Ω with resolution of 0.1μΩ
- Built-in memory storage, Bluetooth communication and much more
5180 Reward PointsPrice Match GuaranteeDLRO100H-HB -
Free UK DeliveryMegger DLRO200-EN-NLS Low Resistance Ohmmeter£6,348.00 £5,290.00
- Small and weighs less than 32 lbs (15kg)
- Test currents from 10 A to 200 A d.c.
- Filtered direct current output eliminates magnetic transients
5290 Reward PointsPrice Match GuaranteeMEGLO5 -
Free UK DeliverySonel MMR-6500 Micro-Ohmmeter£6,528.00 £5,440.00
- Unique module for measuring the resistance of inductive components with currents up to 10A
- Measure the temperature and resistance of windings
- Integrated help system with instructive drawings
5440 Reward PointsPrice Match GuaranteeMMR-6500 -
Free UK DeliveryMegger DLRO200 Low Resistance Ohmmeter£6,708.00 £5,590.00
- Small and weighs less than 15kg
- Test currents from 10 A to 200 A d.c.
- 0.1 µΩ best resolution
5590 Reward PointsPrice Match GuaranteeDLRO200-EN -
Free UK DeliveryMegger DLRO600-EN-NLS Low Resistance Ohmeter£6,718.80 £5,599.00
- High precision low resistance meter
- On-board memory storage for up to 300 test results and notes
- This version supplied without test leads
5599 Reward PointsPrice Match GuaranteeDLRO600-NLS -
Free UK DeliveryMegger DLRO600 Low Resistance Ohmmeter£6,924.00 £5,770.00
- Measure current opposition with great accuracy (up to 600A)
- LCD display
- Weighs less than 15Kg
5770 Reward PointsPrice Match GuaranteeMEGLO6 -
Free UK DeliveryMegger MOM2 Micro-Ohmmeter w/ Choice of Kit£7,092.00 £5,910.00
- Choice of three different versions available
- High accuracy low resistance tester
- Portable, handheld design
5910 Reward PointsPrice Match GuaranteeMEG-MOM2
About Low Resistance Ohmmeters
Ohmmeters are portable devices that are used by electricians to accurately measure the resistance opposing electrical current on circuitry.
Generally, the ohmmeter family is divided into two distinct types. Micro-ohmmeters (also known as microhmmeter) are capable of making low resistance measurements, but can't be used to measure larger values of resistance like you may find on high-voltage equipment. The other form, the megohmmeter, can measure incredibly large levels of resistance and is a great solution for those working with higher levels of resistance.
While traditionally the ohmmeter displayed resistance as movement on a galvanometer scale, this has now been generally phased out in favour of digital technology. Rather than getting fluctuating readings from a needle scale, a digital ohmmeter will accurately output the resistance of a circuit as a definitive number, allowing you to quickly tell exactly what the reading is. The inclusion of digital interfaces also means you can use a wide variety of different extra features (depending on which model you're using) including built-in-memory of test results, onboard keyboard entries, and more!
To obtain truly high-precision readings of resistance, the ohmmeter must have four terminals named Kelvin contacts. This forces the ohmmeter to ignore readings that interfere with the overall accuracy of the test, as when an ohmmeter calculates resistance it generally displays the sum of the resistance of the measuring leads, the contact resistances, and the resistance being measured itself.
Milliohm meters - also known occasionally as the aforementioned microhmeters -are used to accurately make low resistance measurements on equipment that requires sensitive testing procedures. Such examples include the testing of PC equipment, which has delicate internal parts that could be damaged by excessive testing.