Metrel MI 3252 Micro-Ohmmeter 100 A Low Resistance Tester
If you need a dependable micro-ohmmeter that delivers precision, durability and high test current capability, the Metrel MI 3252 is designed to give you absolute confidence in low resistance measurements. The instrument is ideal for engineers responsible for maintaining power systems, industrial switchgear, transport networks and critical infrastructure. Enquire today for availability, technical guidance and calibration support.
Discover the Power of the Metrel MI 3252 Micro-Ohmmeter:
Why Choose the Metrel MI 3252
The Metrel MI 3252 MicroOhm 100A provides laboratory-level performance in a portable, field-ready design. Even with its powerful internal current generator, the MI3252 weighs less than 12 kg and can operate entirely from the built-in battery. This makes it especially suitable for sites with multiple testing points or locations where mains power is not available.
Using the highly accurate Kelvin four-wire method, the Metrel MI 3252 delivers a resolution of 1 nΩ and accuracy of 0.25%. This level of detail is essential when verifying the condition of circuit breakers, disconnectors, busbar joints, industrial bonds and high-current components that must operate safely under significant electrical load.
Key Features of the Metrel MI 3252:
- Adjustable test current from 100 mA to 100 A for dependable results on a wide range of assets
- Exceptional accuracy of 0.25% with a best resolution of 1 nΩ
- Clear on-screen bar graph for fast visual interpretation of resistance values
- CAT IV 50 V protection rating with automatic continuity detection
- Single measurement mode or continuous mode for longer analysis
- Internal memory with capacity for 1000 test results
- USB and RS232 interfaces with HVLink PRO software for exporting and reporting
- IP64 protective housing with a rugged carry case suitable for tough environments
- Battery powered operation that supports 100 A output for up to ten minutes
The MI3252 conforms to international testing and safety standards including IEC 62271-100, IEC 62271-1, ANSI C37.09 and ASTM B539.
Typical Applications:
The Metrel MI 3252 is suitable for a wide range of electrical maintenance and commissioning tasks. Typical uses include:
- High, medium and low voltage circuit breaker testing
- Busbar joint resistance analysis
- Cable splice quality assessment
- Welding joint resistance verification
- Power generation and distribution system testing
- Switchboard and industrial control gear inspection
- Rail infrastructure bonding and continuity checks
By using the MI3252, engineers can identify early-stage deterioration, poor contacts or developing faults before they lead to system downtime or costly failures.
What comes with the Metrel MI 3252?
- Metrel MI 3252 Low Resistance Ohmmeter
- 2 x Current Test Leads with Croc Clips, 5m, 25mm²
- 2 x Potential Test Leads, 5m (red/black)
- 2 x Test Probes (red/black)
- 2 x Crocodile Clips (red/black)
- Mains Cable
- RS232 Cable
- USB Cable
- Bag for Accessories
- PC SW HVLink Pro Software
- Instruction Manual
- Calibration Certificate
❓ Frequently Asked Questions (FAQ)
Q1: What makes the Metrel MI 3252 different from other micro-ohmmeters?
A. The MI3252 offers true 100 A test current capability, high accuracy and portable battery operation, which allows reliable low resistance testing across demanding sites.
Q2: Can the MI3252 be used without mains power?
A. Yes. The Metrel MI 3252 can perform high current tests using only its internal 12 V battery.
Q3: How many results can the instrument store?
A. Up to 1000 readings can be saved and downloaded using HVLink PRO software.
Q4: Is the MI3252 suitable for high voltage environments?
A. Yes. The instrument has a CAT IV 50 V safety rating and is specifically designed for testing components within power systems.
Note: Be sure to check the official datasheet before buying, and the user manual before using any test equipment. Need training? Just reach out - we’re happy to help