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Metrel MI 3290 GL Ground Earth Tester

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MI 3290 GL Earth Ground Tester is a portable, battery or mains powered test instrument with excellent IP protection (IP 54 open case), intended for measurement of earth resistance, specific earth resistance and earth potential of various energetic and non-energetic objects. The user can choose between different methods from classic 3 wire earth resistance measurement up to one or four clamp method for measurement of pylons. He has a choice of measurement methods with different frequency methods: single frequency or frequency sweep from 55 Hz to 15 kHz, HF method with 25 kHz and pulse method simulating the lightning strike. High electrical noise immunity makes this instrument best suited for industrial environment. Instrument is available in multiple sets which are a combination of different accessories and measurement functions.

Please use the request form to start a calibration services quote. You may also request equipment sales or repair services.


SKU MetrelMI 3290 GL Category Manufacturer Model Number

Description

The Metrel MI 3290 GL Ground Earth Tester is engineered to provide accurate and reliable measurements for ground and earth resistance testing. It is designed to perform both 2-pole and 3-pole earth resistance measurements, offering flexibility for various testing scenarios. The tester features advanced functionality for soil resistivity measurements and continuity testing of earth conductors. Its robust design ensures durability in demanding environments, while the intuitive interface facilitates ease of use. The MI 3290 GL is a valuable tool for electrical engineers, maintenance professionals, and safety inspectors who require precise testing of grounding systems and earth electrodes.

Specifications

  • Measurement Functions: 2-pole and 3-pole earth resistance, soil resistivity, continuity testing
  • Measurement Range: 0.01 Ω to 2000 Ω
  • Accuracy: ±2% of reading ±0.01 Ω (typical)
  • Test Current: 10 mA to 200 mA
  • Display: High-contrast LCD with backlight for visibility in various lighting conditions
  • Memory: Internal memory with capacity for storing multiple measurement results
  • Power Supply: Rechargeable battery with low battery warning and auto-off feature
  • Communication: Optional Bluetooth or USB interface for data export and analysis
  • Environmental Conditions: Operating temperature range of -20°C to +50°C and humidity up to 90% RH (non-condensing)
  • Safety Standards: Adheres to international safety standards for electrical testing equipment
Extra Features
Workspaces
Earth / Ground Mode
Lightning Mode
Project Structure
Visual Inspection Mode
Functional Inspection Mode
AUTOSEQUENCES ®
AUTOSEQUENCE profile
AUTOSEQUENCE programmable
Custom Visual/Functional Inspection
AUTOSEQUENCE IEEE 81
AUTOSEQUENCE Lightning Systems
PASS/FAIL System Evaluation
Automatic test sequences
Multitest sequence
Advanced User Interface
Colour display
Touch screen
Adaptable user interface
Graphical Help Menus
Database System Built In
Programmable Memory Structure
Multi-level Memory Organiser
On-site Parameter Settings
SDK support
Upload structure
Upload measurements
Download
Main Features
Voltage DC
Voltage DC
Voltage AC
Voltage TRMS
Current AC
Current TRMS
Insulation Resistance
Test voltage display
Earth/Ground Resistance
Earth Resistance 2-wire
Earth Resistance 3-wire
Wenner 4-wire Specific Earth Resistance
Schlumberger 4-wire Specific Earth Resistance
Selective Iron Clamps Earth Resistance
Two Iron Clamps Earth Resistance
Transient Impulse Z 10/350 μs
HF 25 kHz Z Impedance
Z Ground Impedance
Single/Multi/Sweep Frequency
Functional
AC Current
Additional Features
PASS / FAIL Indicators
PASS/FAIL Indicators
Voltage Monitoring
Voltage Monitoring
Low Pass filter
Noise immunity filter
Display
Back Light
Keyboard
QWERTY Keyboard
Virtual Keyboard
Power Supply
Rechargeable Batteries in standard delivery
Battery Powered
Dual Power
Graphical user interface
Graphical on Line Help
Communication Port
Communication Port USB
Communication Port RS232 – PS/2
Built-in Bluetooth
Built-in Bluetooth
Mobile Application
Android Application
Memory
Internal memory
Downloadable
Uploadable
Special Accessories
Current clamps
Iron Clamps
Shielded Test Lead 75m on Reel
Shielded Test Lead 75m on Reel
PC Software Package
PC Software Package
MESM Compatible
Professional reporting
Battery Charger
Battery Charger
Electrical Energetics
Power generation
Thermal energy power plants
Renewable energy sources
Hydroelectric power
Photovoltaic installations
Wind power generation
Power distribution
Remote antenna tower earthing resistance
Installations exceeding 1 kv
Specific earth resistance measurement methods
Building Facilities
Low voltage earthing and lightning protection
Earthing measurement with fall of potential method
Medical Facilities
Hospital earthing and lightning protection
Hospital earthing measurement with fall of potential method
Standards Applied
Earthing and lightning protection
LPSinsp Competences: Lightning Protection of Buildings Inspection
LPSc Competences: Lightning Protection of Buildings for Contractors and Maintainers
IEC 62305 Protection against lightning – series
Earthing and Grounding
EES Competences: Electrical Energetic Systems Earthing and Grounding Safety
IEEE Guide for Safety in AC Substation Grounding
IEEE 81-2012 IEEE Guide for Measuring Earth Resistivity, Ground Impedance, and Earth Surface Potentials of a Grounding System
IEEE 142 Recommended Practice for Grounding of Industrial and Commercial Power Systems
IEEE 367-2012 – IEEE Recommended Practice for Determining the Electric Power Station Ground Potential Rise and Induced Voltage from a Power Fault
EN 50522 Earthing of power installations exceeding 1 000 V a.c.

Laboratory Calibration

Micro Precision operates 36 laboratories globally providing reliable localized support

  • Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
  • Comprehensive scopes of accreditation to meet a broad range of customer needs
  • Expedited calibration services available
  • Pickup and delivery services available
  • Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.

Calibration equipment and workspace
Calibration Service For This Equipment

Laboratory Calibration

Micro Precision operates 36 laboratories globally providing reliable localized support

  • Certified metrologists staffing laboratories in North America, Central America, South America, Europe, Asia, and the Middle East
  • Comprehensive scopes of accreditation to meet a broad range of customer needs
  • Expedited calibration services available
  • Pickup and delivery services available
  • Environmentally controlled facilities to ensure high quality and accurate calibrations and measurements.

Calibration Service For This Equipment
Calibration equipment and workspace

Quality Certified Test Equipment Repair Services

When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:

  • Cost effective; often less than OEM
  • Efficient; often much better turn-time than the OEM
  • Flexibility; willingness to work with customers to meet their needs
  • Warranted repairs
  • Ability to service many obsolete instruments

Motherboard being repaired with soldering iron
Repair Service For This Equipment
Motherboard being repaired with soldering iron

Quality Certified Test Equipment Repair Services

When a piece of equipment fails you have the option to repair or replace that item. Oftentimes repair is an economical and efficient solution. Micro Precision’s repair offering provides advantages to our customers:

  • Cost effective; often less than OEM
  • Efficient; often much better turn-time than the OEM
  • Flexibility; willingness to work with customers to meet their needs
  • Warranted repairs
  • Ability to service many obsolete instruments

Repair Service For This Equipment

Cost Effective Test Equipment Options

From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.

Electronic instruments stacked on top of one another
Rent or Purchase This Equipment

Cost Effective Test Equipment Options

From the leasing of specialized electronic equipment for a specific task, to the purchase of physical and dimensional tools, we offer leasing services as well as used test equipment sales. We also locate hard-to-find electronics, and provide flexible options to meet ever-changing equipment needs.

Rent or Purchase This Equipment
Electronic instruments stacked on top of one another

Our Capabilities

Micro Precision can perform instrument calibration services on equipment from variety of applications for specific industries and lines of business. If you have a calibration need that is not listed in this area, please contact us.

Electrical

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Optical

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Thermodynamics & Chemical

Micro Precision accredited thermodynamic & chemical calibration lab services with temperature, humidity, life science, and pharma capabilities.

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RF - Microwave

Micro Precision accredited RF & microwave calibration lab services.

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Mechanical & Dimensional

Micro Precision accredited mechanical and dimensional calibration lab services with pressure, torque, force, flow, velocity, and aircraft jack load capabilities.

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Laboratory Standards

Calibration laboratory standards are critical for your organization’s most accurate measurements.

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Semiconductor Calibration

Micro Precision utilizes state-of-the-art technology to analyze semiconductor wafer thickness and step height.

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