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Resistance Meters

Resistance Meters
Resistance Meters
A resistance meter, or ohmmeter, is a testing instrument that measures electrical resistance. Most ohmmeters are digital devices, although analog variants are available to measure rapidly fluctuating values.

Ohmmeters work by passing a constant current through the resistance, with a second circuit that measures voltage across that resistance. A microcontroller or microprocessor then uses Ohm's Law to divide the voltage by the current and display the resulting resistance value to the user.

Resistance meters are suitable for a huge variety of applications, from circuit testing on boards or small electronic devices, to insulation testing on motors, transformers or other heavy machinery.

1500 Series Image
  • AC Voltage/Low Resistance Test
  • Resistance Measurements up To 1000G Ohms
  • Data Hold
  • Low Battery Indication
  • Battery Operated
The Fluke 1500 series insulation testers are capable of testing such things as switchgear, motors, generators and cables. With their multiple test voltages they are ideal for many troubleshooting, commissioning, and preventative maintenance applications. Some models feature multimeter functions, and a PC interface.
MO-100 Series Image
  • Accurate Four Terminal Measurement Down to 100 uOhm without Test Leads Resistance Compensation
  • Three Test Currents with Over-Temperature Protection for Measurement Precision
  • Indicates Measurement Errors Due to Temperature or Connection Problems
  • Protection against Inadvertent Connection to Overvoltage
  • Potential Lead Resistance, Current Lead Resistance Checks
  • Auto-Hold and Auto-Off Features
  • Lightweight, Robust and Compact
  • “O-Ring” Sealed Enclosure
Spot potential failures fast with the portable, battery powered MO-100. Check for opens or shorts in motor windings, generators and transformers. Test heating elements and wire-to-wire resistance in critical electrical connections.
380580 Series Image
  • Four Terminal Kelvin Measurements
  • Over-Temperature and Over-Voltage Protection
  • 5 Ranges with 100µ Max Resolution
  • Large 2000 Count LCD Display
  • Auto-Hold and Auto Power Off
  • Invalid Test Indicators Prevent Inaccurate Measurements
  • Built-in Water Resistant Case with Shoulder Strap
  • Complete with 8AA Batteries, and 2 Sets of Test Leads (4 Wire with 4 Alligator Clips and 4 Wire with 2 Kelvin Alligator Clips)
UM200 Series Image
  • 6 Ranges with 3 Sub-Ranges in Each Current Range
  • Measurement of Resistive and Inductive Materials
  • Auto or Manual Ranging
  • High Resolution to 1µ
  • 5-Digit Backlit LCD
  • Built-in Comparator for Hi/Lo Resistance Testing with 20 Sets of Prestored Values
  • Store/Recall up to 3000 Measurements
  • 10A Maximum Test Current
  • Complete with 4-Wire Cables with Kelvin Clip Connectors, Rechargeable Li-Polymer Battery, AC Adapter/Charger, Software and USB Cable, and Soft Carrying Case
1250N Series Image
  • 5000M Ohms Resistance
  • Voltage Max 1000V
  • Low Resistance Test
  • Hand Crank
  • AC Voltage Test
The Model 1250N is a compact, self-contained, hand-cranked True megohmmeter. This practical and dependable instrument is designed for a broad range of plant and field service applications. The easy hand-cranked operation provides a steady, rectified DC voltage output across the entire range for consistently reliable readings. The Model 1250N has three test voltages for insulation resistance testing: 250, 500 and 1000V, and has a test voltage range for safety checks to confirm the sample is fully discharged and not connected to an energized circuit. Test voltages are generated in full across the entire measurement range.
5060 Series Image
  • Voltage Max 5000V
  • 10000G Ohms Resistance
  • Dual Digital Display
  • Backlight
  • AC Voltage Test
The Digital/Analog Megohmmeter Model 5060 is the latest design in 5000V insulation testers. Features include automatic calculation and presentation of the Dielectric Absorption Ratio (DAR), Polarization Index (PI) and Dielectric Discharge (DD). The Model 5060 displays the test voltage, insulation resistance and the leakage current during the test. Capacitance of the sample and discharge voltage present at the test leads is displayed at the conclusion of the test. This meter is designed with the highest level of built in safety features. The Model 5060 can be operated from an internal rechargeable battery system or from an AC line power. The Model 5060 offers additional functionality in that an RS-232 port provides the ability to configure the unit from a PC and run the test from the PC.
AMB Series Image
  • Resistance Range 100~500000M Ohms
  • Voltage Range 500~5000V
  • Low Resistance Test
  • Low Battery Indication
  • Analog or Digital
Amprobes AMB series of insulation meters takes accurate resistance readings of wires, cables, transformers, and electrical motors. Both digital and analog meters are supplied through this series, all are battery operated. These portable manual instruments are used for determining insulation resistance, and some feature an automatic discharge, for operator safety.
AMC Series Image
  • Hand Crank
  • 100M Ohms Resistance
  • Voltage Max 500V
  • Low Resistance Test
  • Analog
Amprobes AMC series Megohmmeters are compact, self-contained, hand-cranked True Megohmmeters. This practical and dependable instrument is designed for a broad range of plant and field service applications, such as acceptance testing and preventive maintenance of wiring, cables, switchgear and motors
ANALOG Series Image
  • Automatic discharge of equipment capacitance for safe removal of test leads
  • Sensitive ohmmeter for checking resistance of motor windings
  • Built-in voltmeter
  • Battery OK test
  • Mirror scale
Cut unscheduled downtime and reduce shock hazards. Quickly check the insulation resistance value of electric equipment and lines with this small, easy to-operate tester.
CLAMP Series Image
  • Accurate ground resistance measurements from 0.025 to 1500 Ohms
  • True-RMS current and leakage current measurements
  • User selectable high and low ohm audible alerts
  • Accurate readings in less than 10 seconds
  • Data logging capability - 116 records
  • Individual data point recordings
  • Auto power-off (can be disabled)
  • Low battery indicator
User-friendly and accurate, the DGC-1000A helps you work safely without test leads or auxiliary electrodes. The on-board memory and data logging features improve efficiency.
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