PRO 8220 220A Microohms Meter

405,000.00 including GST @18%

Upto 220A, Step Current: 2.5A, 87 current gears, 1μΩ~5mΩ, Resolution:0.01μΩ, High accuracy, 4-wire measurement, high stability with open circuit & overheating protection, Data Logging upto 999 sets, Data Query, Rechargeable Battery, IEC61010-1, CAT III 600V, Pollution Level 2.



The Metravi PRO 8220 Micro Ohms Meter is designed to measure the Contact Resistance of various high voltage switches and circuit breakers, connection resistance of metal welding components, metal conductor Loop Resistance and precision Micro Ohm Resistance.
With a high speed micro-controller at the core, the device combines high precision A/D convertor, digital measurement technology, anti-power frequency interference technology, and advance program-controlled current source technology, so that the built-in, high capacity, rechargeable Lithium batteries product no ripples.

Maximum output is 220A DC and the output current can be fine-tuned every 2.5A steps, up to 87 current gears, to meet the Multi-current Gear Test. At the same time, the user can set the time (10s, 20s, 30s, 40s, 50s, 60s), continuously output large Current Test and can test with high precision, high stability and high intelligence, even in strong interference environments.

The instrument features circuit protection and overheat protection. It comes with a 5.6 inch large, colour, LCD display, which is clear and intuitive. Equipped with standard resistors, the accuracy of the instrument can be self-inspected before the formal test.
Wide-range, large Data Storage capacity, strong anti-interference ability and simple operation make this handheld, small size, easy-to carry device, a valuable tool for the field. It can also be equipped with printer for data printing (optional).

Additional information





Resistance Resolution


Test Current Range



Resistance Accuracy

10A or less than 5A ±, 30A~220A


open circuit, over heat

Storage Capacity



87 Current Gears

Power Source

Battery Operated


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Test Interface

I-, I+, U, U+

Battery Type

Rechargeable, Lithium

Battery Capacity

12.6V, 9000mAh


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Measurement Method

4-wire measurement

Output Current

≤5A, 100A, 10A, 200A, 220A, 30A, 50A, 80A

Working Current

230mA in non-test state

Sampling Time

10s, 20s, 30s, 40s, 50s, 60s

Battery Savers

Automatic Shutdown After 15 mins of Non-operation

Dimensions / Weight

2.2kgs, H 312mm, L 188mm, W 85mm


10A or less than 5A ±, 30A~220A ±

Measurement Time

>100A fast mode, ≤100A fast mode, 10s, 20s, 30s, 40s, 50s, 6os



Data Storage

999 sets of data

Automatic Shutdown

after 15 mins. of non-operatio

Working Environment

-10°C – 50°C, below 90%RH

Storage Environment

-10°C~60°C, below 70%RH

  • Measurement Method: 4-wire measurement
  • Display: 5.6-inch industrial, backlit, colour LCD with high-brightness
  • Test Interface: I+, I-, U+, U
  • Output Current: ≤5A, 10A, 30A, 50A, 80A, 100A, 200A, 220A
  • Measurement Range:
    • ≤5A: 1μΩ – 3500mΩ
    • 10A: 0.1µΩ – 200mΩ
    • 30A: 0.1μΩ – 20μΩ
    • 50A: 0.01μΩ – 15mΩ
    • 80A: 0.1μΩ – 1mΩ
    • 100A: 0.01μΩ – 5mΩ
    • 200A: 0.01μΩ – 600uΩ
    • 220A: 0.1μΩ – 500uΩ
  • Resolution: 0.01µΩ
  • Accuracy:
    • 30A~220A ±(reading*0.1%+measurement range*0.2%+1μΩ)
    • 10A or less than 5A ±(reading*0.5%+measurement range*0.2%+10μΩ)
  • Measurement Time:
    • ≤100A fast mode (recommended), 10s, 20s, 30s, 40s, 50s, 60s
    • >100A fast mode
  • Data Storage: After the completion of the test, the data is automatically and cyclically saved with up to 999 sets
  • Data Deletion
  • Data Query
  • Automatic Shutdown: 15 mins of. non-operation
  • Working Current: 230mA in non-test state, Current can be set in test state
  • Circuit Protection: Open-circuit protection, Over-heat protection
  • Temperature Protection: By temperature monitoring
  • Power: Built-in 12.6V 9000mAh rechargeable lithium battery
  • Safety Standards:
    • IEC61010-1
    • CATIII 600V
    • Pollution Level 2
    • JJG724-1991 Verification Regulation of DC Digital Ohmmeter
    • JJG166-1993 Verification Regulation of DC Resistors
    • DL/T967-2005 Verification Regulation of Loop Resistance Tester
    • DC Resistance High-speed Tester
  • Dimensions: L 188mm × W 85mm × H 312mm
  • Weight: 2.2kgs (only instrument)


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