Low Resistance Ohmmeters
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Free UK DeliveryExtech UM200 High Resolution Micro-Ohm Meter£1,426.80 £1,189.00
- Resistance measurements (low)
- 3000 record memory
- Auto and manual ranging
1189 Reward PointsPrice Match GuaranteeUM200 -
Free UK DeliveryChauvin Arnoux CA6240 Microhmmeter£2,244.00 £1,870.00
- Small, lightweight and ergonomic design
- Kelvin clamp cables reach 2 metres
- Automatic measurement mode
1870 Reward PointsPrice Match GuaranteeP01143200 -
Free UK DeliveryMegger DLRO10HD Digital Low-Resistance Ohmmeter£3,306.00 £2,755.00
- Durable, reliable ohmmeter capable of measuring low-resistance in a wide variety of environments and for an eclectic range of products
- Five measurement modes
- Heavy duty case protects this ohmmeter from the elements
2755 Reward PointsPrice Match Guarantee1006-657 -
Free UK DeliveryMegger DLRO10HD Low Resistance Ohmmeter& KC1-TL3-C Kelvin Lead Set£3,514.80 £2,929.00
- Includes one Megger DLRO10HD Digital Low Resistance Meter and one Megger KC1-TL3-C Kelvin Clip Lead Set
- Megger DLRO10HD Low Resistance Meter can perform low contact resistance tests (ducter tests) on all metallic joints
- Megger DLRO10HD features new interchangeable test lead terminations and a large, backlit, digital, LCD Display
2929 Reward PointsPrice Match Guarantee1006-604 -
Free UK DeliveryMegger DLRO10HD Digital Low Resistance Ohmmeter & DH4-C Test Lead Set£3,696.00 £3,080.00
- Includes one Megger DLRO10HD Digital Low Resistance Meter and one Megger DH4-C Test Lead Set
- Megger DLRO10HD Low Resistance Meter can perform ducter tests (low contact resistance tests) on all metallic joints
- Megger DLRO10HD is rugged and features new interchangeable test lead terminations
3080 Reward PointsPrice Match Guarantee1006-603 -
Free UK DeliveryChauvin Arnoux CA6255 10A Micro-ohmmeter£3,754.80 £3,129.00
- Can be used to check the quality of connections using low-resistance measurements
- Seven resistance ranges, three with 10A current
- Temperature compensation function for comparative results
3129 Reward PointsPrice Match GuaranteeP01143221 -
Free UK DeliveryMegger DLRO10-NLS Low Resistance Ohmmeter - No Test Leads£4,042.80 £3,369.00
- Precision automatic low resistance measurements
- 7 ranges with test current to 10A
- Lightweight, portable design
3369 Reward PointsPrice Match GuaranteeMEGLO33 -
Free UK DeliveryMegger DLRO10 10A Low Resistance Ohmmeter£4,218.00 £3,515.00
- Test method: single cycle reversing dc ratiometric measurement
- Average result display- Test current: Accuracy +-10% Stability <10ppm per second
- Battery capacity : 7Ah NiMH rechargableLife : Typically 1000 x 10A tests before recharge
3515 Reward PointsPrice Match GuaranteeMEGLO3 -
Free UK DeliveryMegger DLRO10X Low Resistance Ohmmeter w/ DH4-C Duplex Probe Lead Set£4,798.80 £3,999.00
- High precision low resistance ohmmeter with internal memory storage
- Full kit version with test leads and probes included
- Automatic and manual testing modes
3999 Reward PointsPrice Match GuaranteeMEGLO44 -
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
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.