Ohmmeters

An ohmmeter is a type of meter used in the measurement of electrical resistance and continuity of an electrical circuit and components and are available in a range of sizes, voltages and types, each with varying levels of accuracy. Ohmmeters (or ohm meters) are available in three main variations including micro-ohmmeter (for measuring low resistance), standard ohmmeters for general purpose and meg-ohmmeter (for measuring high resistance), all of which measure electrical resistance in ohms.


Application


Ohmmeters are used in a wide range of applications where the measurement of electrical resistance is required. Ohmmeters are commonly used in the following areas:



  • Laboratory and Research Environments
  • Production
  • Household Troubleshooting

How does an ohmmeter work?


Ohmmeters generally work by passing a small current through a sample, allowing the instrument to measure the voltage drop and how much an object resists allowing the current to flow through, highlighting the resistance in ohms.


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Description Price Maximum Resistance Measurement Resistance Measurement Resolution Measurement Type Battery Life Battery Type Power Source Handheld Dimensions Weight Height Length Maximum Accuracy Maximum Operating Temperature Minimum Accuracy
RS Stock No. 192-3099
Mfr. Part No.P01140301
MYR3,187.55
Each
units
+10 Ω, 1000 MΩ, 1000 Ω - - - AA Battery Yes 167 x 106 x 55mm 500g 55mm 167mm +3 %, +5 % - ±3 %
RS Stock No. 174-7893
Mfr. Part No.P01143221
MYR20,292.86
Each
units
2500 Ω 100nΩ 4 Wire - Rechargeable NiMH Battery Yes 270 x 250 x 180mm 4kg 180mm 270mm 0.05 + 300 mΩ % +50°C 0.05 + 1 μΩ %