MI 3288 Earth Insulation Tester

Maximise safety and efficiency with the state-of-the-art Metrel MI 3288 Earth Insulation Tester. Tailored for rigorous demands, this comprehensive tester offers a multitude of functions; from earth resistance to insulation tests, and step voltage measurement to continuity checks with a remarkable 2A test current.

‘Standard set’ typically ‘In stock’ subject to prior sales. Contact us to confirm stock before ordering. Other sets typically are ‘special order‘, please inquire for current P&A.

SKU: N/A

$3,918.00 – $4,344.00 ex. GST

Set Type

Clear

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Experience the power of precision with the Metrel MI 3288 Earth Insulation Tester, the comprehensive solution for all your testing needs. Now more versatile than ever, the MI 3288 joins robust performance with user-friendly features, culminating in an exceptional instrument that safeguards installations, ensures compliance, and maintains system integrity.

Why Choose the Metrel MI 3288?

Unrivalled Versatility: Conduct a multitude of tests including earth resistance, insulation resistance, and continuity of protection conductors, along with measurements of earth potential and step and touch voltages.
Advanced Technological Integration: The instrument’s firmware upgrade transcends previous limitations, introducing functionalities such as continuity measurement with up to 2A testing current.
High Altitude and IP Protection: Designed for optimal performance even at 4000 m above sea level, with unparalleled IP 54 protection against dust and water.

Product Features:

Comprehensive Measuring Functions: From 2/3/4-pole earth resistance to varistor tests at 2.5 kV, the MI 3288 provides extensive capabilities for accurate measurements.
Cutting-Edge Display: A 4.3-inch colour LCD display with a touch screen enhances the user interface, promoting ease of use and clear readouts.
Safe and Secure: Overvoltage category at 600 V CAT II and 300 V CAT III, offering supreme safety standards.
Portable and Enduring: Built-in charger and rechargeable Li-Ion batteries ensure prolonged operation and ease of use in field conditions.
Connectivity at Your Fingertips: Integrated Bluetooth communication for seamless interface with PC, Android tablets, and smartphones.

Ideal for a Range of Applications:

Whether for periodic testing of electrical installations, evaluating earthing, or inspecting transformers and generators, the MI 3288 delivers highly reliable and accurate measurements across diverse settings.

User-friendly Software Support:

Utilise the Metrel ES Manager for simplified test structuring, result downloading, and data analysis, allowing for a sleek transition from field testing to documentation and reporting.

Distinguish your service with unrivalled accuracy and dependability, and elevate your operations with the Metrel MI 3288 Earth Insulation Tester. Ideal for electricians, maintenance teams, and safety inspectors, this tool promises not only to meet but exceed your testing and measurement expectations. Order now and experience the confluence of safety, efficiency, and state-of-the-art engineering.

MI 3288 Earth Insulation Tester is a portable, battery powered test instrument with excellent IP protection and designed for high altitude (300 V CAT III at 4000 m). It can measure earth resistance, specific earth resistance, earth potential, step and touch voltages, insulation resistance and continuity of protection conductors of various energetic and non-energetic objects. The MI 3288 Earth Insulation Tester also supports 4-wire earth resistance measuring method in combination with one clamp, two clamps earth resistance measurement, 4-wire specific earth resistance measurement and TRMS current measurement. With the option to measure earth potential, step and touch voltage it is a truly versatile tester. It can even test the breakdown voltage of overvoltage protection devices. Among supported features is also the download of saved results to a PC with the help of Metrel ES Manager PC software to the computer for evaluation and report generation after testing.

Measuring Functions

Earth resistance 4 – pole
Selective earth resistance with 1 clamp
Specific earth resistance Ro Wenner and Schlumberger method
Earth resistance with 2 iron clamps
Earth potential
Step and touch voltage measurement with external P/S probe
Insulation resistance with DC voltage from 50 V to 2500 V and PI, DAR calculation
Varistor test 2,5 kV
Current measurements with clamps AC
TRMS voltage and frequency measurements
Low Ohm measurements with 7 mA and 200 mA DC test current

KEY FEATURES

Possibility of performing all main types of earth (Re), specific earth(Ro), potential (Us), insulation (Riso), resistance (μΩ), voltage / frequency and current measurements with a single instrument;
Multi frequency test signal on output voltage (20/40 Vac) in earth measurement for best noise immunity (55 Hz also supported);
Insulation resistance: wide range of insulation test voltages from 50 V to 2500 V, resistance measuring range up to 100 GΩ with Guard terminal, automatic discharge supported and additional filtering options (OFF, 5 s, 10 s, 30 s, 60 s);
Low Ohm (μΩ) resistance measuring range with μΩ resolution;
Resistance measurement (Four wire Kelvin method);
Resistance (μΩ) with single, continuous and inductive mode of operation with selectable current: 10 mA, 100 mA, 1A and 2A (bidirectional);
4-wire / 2-wire 200 mA DC resistance measurement;
2-wire continuity (7 mA) measurement;
Overvoltage category 600 V CAT II, 300 V CAT III; at 4000 m above sea level;
4.3’’ colour LCD display with touch screen;
Programmable AUTO SEQUENCEs;
High degree of protection: IP 54;
Support for single or automated measurements;
Programabel Hi/Lo limits;
Built-in charger and rechargeable Li-Ion batteries as standard accessory;
BT communication with PC, Android tablets and smart phones via built-in BT;
PC SW Metrel ES Manager for measurement pre and post processing: preparation of the test structure, result download, tree-view, table view and graphical view, storing and printing.

SPECIFICATIONS

TECHNICAL SPECIFICATION

FUNCTION

Measuring range

Resolution

Accuracy

Insulation resistance Riso Un = 2,5 kV

0 kΩ … 999 kΩ

1.00 MΩ 9.99 MΩ

10.0 MΩ 99.9 MΩ

100 MΩ 999 MΩ

1.00 GΩ 9.99 GΩ

10.0 GΩ 99.9 GΩ

1 kΩ

0.01 MΩ

0.1 MΩ

1 MΩ

10 MΩ

100 MΩ

±(3 % of reading + 3 digits)

±(5 % of reading + 3 digits)

±(15 % of reading + 1 digits)

Continuity 200 mA of PE conductor with polarity change

0.020 Ω … 1.999 Ω

2.00 Ω … 19.99 Ω

20.0 Ω … 999.9 Ω

1.000 kΩ … 1.999 kΩ

0.001 Ω

0.01 Ω

0.1 Ω

1 Ω

±(1 % of reading + 2 digits)

Low resistance continuity measurement, test current 7 mA (continuous measurement)

0.0 Ω … 199.9 Ω

200 Ω … 1,999 kΩ

2.00 kΩ … 19.99 kΩ

20.0 kΩ … 199.9 kΩ

200 kΩ … 999 kΩ

0.1 Ω

1 Ω

10 Ω

100 Ω

1 kΩ

±(0,5 % of reading + 5 digits)

±(2 % of reading + 5 digits)

µΩ – METER (2A) 1A, 2A

100 mA

10 mA

0.000 mΩ … 1.999 mΩ

2.00 mΩ … 19.99 mΩ

20.0 mΩ … 199.9 mΩ

200 mΩ … 499 mΩ

0.500 mΩ … 1.99 mΩ

0.00 mΩ … 19.99 mΩ

20.0 mΩ … 199.9 mΩ

200 mΩ … 1.999 Ω

2 Ω … 19.99 Ω

0.00 mΩ … 199.9 mΩ

200 mΩ … 1.999 Ω

2.00 Ω … 19.99 Ω

20.0 Ω … 199.9 Ω

1 µΩ

10 µΩ

100 µΩ

1 mΩ

10 µΩ

100 µΩ

1 mΩ

10 mΩ

100 µΩ

1 mΩ

10 mΩ

100 mΩ

±(0.25 % of reading + 4 digits)

Earth resistance 2/3/4-wire method Test frequency 55 – 164 Hz

0.010 Ω … 1.999 Ω

2.00 Ω … 19.99 Ω

20.0 Ω … 199.9 Ω

200 Ω … 999 Ω

1.000 kΩ … 1.999 kΩ

2.00 kΩ … 19.99 kΩ

0.001 Ω

0.01 Ω

0.1 Ω

1 Ω

0.001 kΩ

0.01 kΩ

±(3 % of reading + 3 digits)

Earth resistance 4-wire method with one current clamp – Selective

0.010 Ω … 1.999 Ω

2.00 Ω … 19.99 Ω

20.0 Ω … 199.9 Ω

200 Ω … 999 Ω

1.000 kΩ … 1.999 kΩ

2.00 kΩ … 19.99 kΩ

0.001 Ω

0.01 Ω

0.1 Ω

1 Ω

0.001 kΩ

0.01 kΩ

±(8 % of reading + 3 digits)

2-clamp earth resistance measurement

2.00 Ω … 9.99 Ω

10.0 Ω … 49.9 Ω

50 Ω … 100 Ω

0.01 Ω

0.1 Ω

1 Ω

±(5 % of reading + 2 digits)

±(10 % of reading + 2 digits)

±(20 % of reading)

Specific earth resistance Ro Wenner and Schlumberger method

0.00 Ωm … 19.99 Ωm

20.0 Ωm … 199.9 Ωm

200 Ωm … 999 Ωm

1.000 kΩm … 1.999 kΩm

2.00 kΩm … 19.99 kΩm

20.0 kΩm … 199.9 kΩm

200 kΩm … 999 kΩm

1.0 MΩm … 1.99 MΩm

0.01 Ωm

0.1 Ωm

1 Ωm

0.001 kΩm

0.01 kΩm

0.1 kΩm

1 kΩm

10 kΩm

calculated value (consider uncertainty of 4 – pole measurement)

Earth Potential – voltage

0.00 mV … 99.99 mV

100.0 mV … 999.9 mV

1.000 V … 9.999 V

10.00 V … 49.99 V

0.01 mV

0.1 mV

1 mV

10 mV

±(1 % of reading + 3 digits)

Step and Touch

0.1 V … 199.9 V

200 V … 999 V

0.1 V

1 V

calculated value

Voltage TRMS

0.000 V … 9.999 V

10.00 V … 99.99 V

100.0 V … 749.9 V

0.001 V

0.01 V

0.1 V

Range: 15 … 99 Hz ±(0.5 % of reading + 3 digits)

Range: 100 … 399 Hz ±(1 % of reading + 3 digits)

Range: 400 … 1200 Hz ±(5 % of reading + 3 digits)

Voltage DC

0.000 V … 9.999 V

10.00 V … 99.99 V

100.0 V … 999.9 V

0.001 V

0.01 V

0.1 V

±(0.5 % of reading + 3 digits)

Frequency

15.00 Hz … 99.99 Hz

100.0 Hz … 999.9 Hz

1000 Hz … 1200 Hz

0.01 Hz

0.1 Hz

1 Hz

±(0.2 % of reading + 1 digits)

Current with Iron clamp A 1281

Current with Flex clamps A 1227/ A 1609

10 mA … 749 mA

0.10 A … 7.49 A

2.0 A … 99.9 A

100 A … 149 A

20 A … 999 A

0.6 A … 59.9 A

6 A … 599 A

60 A … 5.99 kA

1 mA

0.01 A

0.1 A

1 A

0.1 A

1 A

10 A

±(2.5 % of reading + 3 digits)

±(3.5 % of reading + 3 digits)

Varistor Test

0.0 V V

100 V V

1.00 kV kV

0.1 V

1 V

10 V

±(1 % of reading + 3 digits)

APPLICATION

Power distribution
- Insulation of long cables

Industrial installations
- Remote antenna tower earthing resistance
- Specific earth resistance measurement methods
Low voltage earthing and lightning protection
- Earthing measurement with fall of potential method
- 2-clamps method for measuring lightning and earth protectio
Preventative maintenance
- Basic earth resistance
- Voltage measurements
- Current measurements

Expanded list of test and measurement applications:

Initial and periodic testing of domestic and industrial installations:
- Testing in TT and IT systems.
- Testing of lightning protection systems.
Industrial areas, smaller buildings, and installations in mining:
- Evaluating earthing of electrical substations.
Testing of motor & generator windings.
Testing of power transformers.
Testing of inductors.
Measurement of wire & cable resistances.
Measurement of insulation resistances of various electrical equipment.
Testing on CAT IV installations (distribution side, industrial plants, etc.).
Observation of insulation trends.
Continuity testing of PE conductors and main and supplementary PE connections.