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MPK102e High Current Micro-ohmmeter

MPK102e_en
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The MPK102e is a portable, microprocessor-controlled high-current micro-ohmmeter, designed for precise measurement of very low contact resistances in breakers, switches, busbars, transformer windings, and engines. With selectable test currents from 1 mA to 100 A, it is a versatile instrument suitable for both laboratory and field applications.

Employing the four-terminal Kelvin method, the MPK102e eliminates errors due to test leads and contact resistances. It offers resolution down to 0.1 μΩ and resistance measurement up to 200 Ω. The unit operates either from internal rechargeable batteries (for currents up to 10 A) or mains supply (for currents up to 100 A), ensuring maximum flexibility in the field.

Built with rugged IP65-rated construction, the MPK102e is lightweight, impact-resistant, and designed for operation under severe environmental conditions.

Function

• Accurate measurement of very low resistances from 0.1 μΩ to 200 Ω
• Test currents from 1 mA to 100 A (battery or mains powered)
• Four-terminal Kelvin method eliminates lead resistance errors
• Resolution down to 0.1 μΩ with 4½ digit alphanumeric display
• Digital and bargraph current display for inductive loads
• Built-in USB interface for data transfer
• Thermal protection for safe operation under high current
• Rugged IP65-rated housing for field and laboratory use

Technical Specifications

test currents

  • 1 mA, 10 mA, 100 mA, 1 A, 10 A, 100 A

  • Each current continuously adjustable from 0 to 100 %

resistance range

  • Up to 200 Ω

resolution

  • 0.1 μΩ

measurement principle

  • Four-terminal, Kelvin-type

accuracy

  • R < 0.5 mΩ: ±(0.50 % of reading + 2 ULSD)

  • R ≥ 0.5 mΩ: ±(0.20 % of reading + 2 ULSD)

  • ULSD = Units of the Least Significant Digit

continuous operation time

  • 100 A: approx. 15 minutes before thermal protection activates

  • ≤10 A: unlimited continuous operation

display

  • Alphanumeric, 4½ digits resolution

  • Digital current measurement with bargraph indicator for stabilisation

interface

  • USB for data transfer

protection

  • Overheating protection for sensitive components

environmental protection

  • IP65 (with closed lid)

safety compliance

  • IEC 61010-1

power supply

  • Internal sealed lead-acid rechargeable battery (up to 10 A tests)

  • Mains: 220–240 V AC (up to 100 A tests)

  • Built-in charger for 220–240 V AC

operating conditions

  • Temperature: -10 °C to +50 °C

  • Humidity: 95 % RH (non-condensing)

storage conditions

  • Temperature: -25 °C to +70 °C

dimensions

  • 502 × 394 × 190 mm

weight

  • ~14 kg

Key Features

  • Resolution as fine as 0.1 μΩ

  • Resistance measurement up to 200 Ω

  • Six selectable test currents up to 100 A

  • Microprocessor controlled with direct digital readout

  • USB interface for reporting and analysis

  • Rugged, portable IP65 housing

  • Overheating protection

Standard Accessories

  • 2 combined current and potential leads (up to 10 A, 1.8 m)

  • Ground cable

  • USB cable

  • Power cord

  • User manual

  • Accessory case

Optional Accessories

  • 2 combined current and potential leads (>10 A) – 6 m

  • 2 combined current and potential leads (>10 A) – 8 m

  • 2 combined current and potential leads (>10 A) – 10 m

  • 2 combined current and potential leads (>10 A) – 12 m

  • 2 combined current and potential leads (>10 A) – 15 m

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