Metrel MI3290GX1 Earth Analyser

Description

The MI 3290 Earth Analyser is available in multiple sets which are a combination of different accessories and measurement functions please note some functions may only work if you have relevant accessory, please refer to the set specifications below. The functionality of an existing set can be expanded by ordering additional accessories and license keys.

Metrel MI3290 GF - Licence key for Grounding and voltage Funnel functionality of Earth Analyser.

Metrel MI 3290 GL - Licence key for Grounding and Lightning functionality of Earth Analyser.

Metrel MI 3290 GP - Licence key for Grounding of Pylons functionality of Earth Analyser.

Metrel MI 3290 GX – Licence key for all of the above.

Metrels MI3290 Earth Analyser is a compact and portable test instrument which can be run on either mains or battery making it suitable for most environments, with an IP rating of 54 with the case open. The MI3290 is intended for use in the field of measuring earth resistance and earth potential of various energetic and non-energetic objects. With various test methods available to the user, from 3-wire earth resistance to 1-4 clamp method for pylons.

The MI 3290 GX comes with the following license keys and is the most comprehensive model:

Earth / Ground Mode
Pylon Mode
Lightning Mode
Project Structure
Visual Inspection Mode
Functional Inspection Mode
Funnel Mode

Metrel MI3290GX1 Earth Analyser is capable of the following measuring functions:

Earth Resistance 2,3,4 -pole;
Selective Earth Resist (1 x clamp);
Earth Resistance (2 x iron clamps);
Specific Earth Resistance (Wenner and Schlumberger method);
HF-Earth Resistance (25 kHz, acc. to IEEE_Std 81);
Earth Resistance of mono pylons with 10 m flex clamp;
Earth Resistance of multi–leg pylons with up to four flex clamps;
Current measurement (Iron, flex clamps);
Low Ohm measurement 7 mA and 200 mA;
Earth Potential;
Step and contact measurements;
Impulse Earth measurement 10/350 µs.

Grounding of Antenna Tower | Electrical Energetic Systems Earthing | MI 3290 | Instructional

With a wide variety of functions and tests and the noise immunity filter which makes for more accurate results in industrial environments, the MI3290 is the most comprehensive model in the range and is more suited to people with experience in the field.

The unit is built inside its own protective carry case with an IP protection of 65 when closed and 54 when open, the screen is a 3.4’’ colour LCD display with touch screen with an intuitive menu system, capable of touch gestures to perform navigational shortcuts. The screen displays full readings, warnings and notifications, helpful diagrams and limit indications.

Key Features

Analysis of earth impedance as a function of the frequency due to a wide measurement frequency band
3.4’’ colour LCD display with a touchscreen and easy to read display
Adheres to a wide range of Functionality. Electromagnetic and safety standards (see datasheet for full list)
Mains or battery powered
IP protection (IP 54 open case)
High electrical noise immunity
Best suited for the industrial environment
Battery and time indication
Touch gestures recognised on screen display
Virtual keyboard on screen
Sound indication for limit parameters
Help screens and connection diagrams
Auto tests - customized test sequences
Power save options
Bluetooth communication
MicroSD card compatible
Workspace manager organises all measurements, parameters, limits, structure objects of an individual work
Memory Organizer for storing and working with test data
Define user-parameters
Graph view of results
Carry out Earth measurements using different methods which are selected by the user
Checkbox - effective means of checking the Earth Analyser
Metrel ES Manager software included, easily manage test results and instrument settings
A wide variety of measuring clamps: from iron clamps to flex clamps with 10 m length. HF-Earth resistance measurement (acc. to IEEE_Std 81).DC resistance measurements
Single or automated measurements
Analysis of earth impedance as a function of the frequency due to a wide measurement frequency band (55 Hz ... 15 kHz)

Whats Included?

MI3290 Includes as standard:

Instrument MI 3290
Current earth spike 90 cm, 2 pcs
Potential earth spike 50 cm, 2 pcs
Connection lead black 2 m
Test lead 5 m blue
Test lead 5 m red
Test lead 50 m black on cable reel
Test lead 50 m green on cable reel
Test lead 50 m blue on cable reel
Shielded test lead 75 m on reel
G clamp
Set of test probes, crocodile clip and 2 m test lead, 4 pcs
Bag for accessories
USB cable
Mains cable
Calibration certificate
Instruction manual
PC SW Metrel ES Manager

GX 1 Set also includes:

Licence GX
Iron clamp A 1018 with 3,5 m test lead
Iron clamp A 1019
Flex clamp 5 m with 15 m shielded cable
Continuity test lead, with crocodile clip, 2 x 2.5 m, 2 pcs
Voltmeter MI 3295M with 2 wire test lead*
Soft carrying bag
Step voltage test plate, 2 pcs
NiMH battery cells, type AA, 6 pcs
Power supply adapter
Bag for accessories

Tech Specs

Metrel MI3290 Technical Specifications

Method	Additional info	Measurement range	Uncertainty
Earth resistance 2, 3, 4 -pole	Open-terminal test voltage 20 or 40 VAC
	Short-circuit test current > 220 mA
	Test Frequency
	55 Hz…329 Hz	0.010 Ω … 19.99 kΩ	±(3 % of reading + 3 digits)
	659 Hz … 2.63 kHz	0.00 Ω … 1.999 kΩ	±(5 % of reading + 3 digits)
	3.29 kHz … 15 kHz	0.00 Ω … 199.9 Ω	±(8 % of reading + 3 digits)
Selective earth resistance with iron clamp	Open-terminal test voltage 40 VAC
	Short-circuit test current > 220 mA
	Test Frequency
	55 Hz … 329 Hz	0.010 Ω … 19.99 kΩ	±(8 % of reading + 3 digits)
	659 Hz … 1.50 kHz	0.00 Ω … 1.999 kΩ
Selective earth resistance of pylons with flex clamp	Open-terminal test voltage 40 VAC
	Short-circuit test current > 220 mA
	Test Frequency
	55 Hz…329 Hz	0.010 Ω … 19.99 kΩ	±(8 % of reading + 3 digits)
	659 Hz … 1.50 kHz	0.00 Ω … 1.999 kΩ
	Passive mode	0.00 Ω … 19.99 kΩ
Earth resistance with two iron clamps	Test Frequency	0.00 Ω … 9.99 Ω	±(5% of reading + 2 digits)
	82 Hz ... 329 Hz	10.0 Ω … 49.9 Ω	±(10 % of reading + 2 digits)
		50.0 Ω … 100 Ω	±(20 % of reading)
Specific earth resistance ro Wenner and Schlumberger method	Open-terminal test voltage 20 or 40 V AC	0.00 Ωm … 19.99 kΩm	calculated value (consider the uncertainty of 4 – pole measurement)
	Short-circuit test current >220 mA
	Test frequency 164 Hz
Earth Potential	Open-terminal test voltage 40 V AC	0.0 mV … 49.99 V	calculated value (consider uncertainty of 3 – pole measurement)
	Short-circuit test current >220 mA
	Test frequency 55 ÷ 329 Hz
HF-Earth Resistance 3 pole	Open-terminal test voltage 40 VAC	0.00 Ω … 19.9 Ω	±(3 % of reading + 2 digits)
	Short-circuit test current >40 mA	20.0 Ω … 299 Ω
	Test frequency 25.000 Hz
Impulse Earth Resistance	Open-terminal test voltage ~120 V peak	0.0 Ω … 199 Ω	±(8 % of reading + 8 digits)
	Short-circuit test current ~6 A peak
	Impulse waveform 10 / 350 µs
DC Resistance RLOW	Test current 200 mA	0.00 Ω … 1.99 kΩ	±(2 % of reading + 2 digits)
DC Resistance CONT	Test current 7 mA	0.00 Ω … 19.9 kΩ	±(3 % of reading + 2 digits)
AC Impedance	Test frequency 55 Hz … 15 kHz	0.00 Ω … 19.99 kΩ	±(3 % of reading + 2 digits)
Current RMS (Iron Clamp)	Nominal frequency 45 Hz …1.5 kHz	1.0 mA …7.99 A	±(2 % of reading + 3 digits)
Current RMS (Flex Clamp)	Nominal frequency 45 Hz …1.5 kHz	10 mA … 49.9 A	±(8 % of reading + 3 digits)
Battery power supply	14.4 V DC (4.4 Ah Li-ion)
Mains power supply	90-260 VAC, 45-65 Hz, 100 VA (300 V CAT II)
Degree of protection	IP 65 (case closed) IP 54 (case open)
Dimensions (w x h x d)	36 x 16 x 33 cm
Display	3.4'' colour LCD display with backlight and touch screen
Communication	USB, BT
Memory	>1GB

Set Specifications

Licence key	GX	GL	GF	GP
Measurement methods
Ground Z 2-pole	•	•	•	•
Ground Z 3-pole	•	•	•	•
Ground Z 4-pole	•	•	•	•
Single/multi/sweep frequency	•	•	•	•
Wenner 4-pole	•	•	•	•
Schlumberger 4-pole	•	•	•	•
Selective (iron clamp)	•	•
Stakeless 2-clamps	•	•
Transient Impulse Impedance	•	•
HF 25 kHz Impedance	•	•
Step / Touch	•		•
Voltage potential	•		•
Low Impedance 4-point	•		•
Low Resistance 200 mA	•		•
Tower Passive one rod / Flex clamps	•			•
Tower FOP / 1xFlex clamp	GX1			•
Tower FOP / 4xFlex clamp	GX4			Option
Mono Tower FOP / Flex clamp	•			•
Measurement accessory
Current earth spike, 90 cm, 2 pcs Potential earth spike, 50 cm 2 pcs G clamp Shielded test lead on reel, 75 m Test lead on reel 50 m, 3 pcs (black, green, blue) Test lead, 5 m, 2 pcs (blue, red) Set of test probes, crocodile clip and 2 m test lead, 4 pcs	•	•	•	•
Flex clamp 5 m with 15 m shielded cable	4 pcs (GX4) 1 pce (GX1)			1 pce
Iron clamp, 2 pcs	•	•
Kelvin clamp with 2,5 m cable, 2 pcs	•		•
Step Contact Meter Measuring Set	•		•