#electrical #high voltage #testing
A comprehensive MI 3288 Earth Insulation Tester how-to video about step and touch voltage measurements.

The MI 3288 Earth Insulation Tester is a Metrel earth/insulation tester for measuring earth resistance, specific earth resistance, earth potential, step and touch voltages, insulation resistance, and continuity of protective conductors.

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🎓 Academy Metrel is a perfect way to refresh your knowledge, participate in a training seminar using Metrel instruments and prepare for electrical installation exams.
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🎥 Presented by:
Al Markočič – Product manager

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Metrel
mi 3288
mi3288
Earth Resistance 2/3/4 - pole
Selective Earth Resistance (1 x 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, Dielectric discharge (DD) ratio
Capacitive measurements
Varistor test 2,5 kV
Withstand voltage test with DC voltage up to 2.5 kV
Current measurements with AC clamps
TRMS voltage and frequency measurements
Low Ohm measurements with 7 mA and 200 mA DC test current
µΩ measurements with DC test current up to 2 A
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
Programmable 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
EN 61010-1
EN 61010-2-030
EN 61010-2-032
EN 61010-031
EN 61557-2
EN 61557-4
EN 61557-5
EN 61326
IEC/EN/HD 60364
AS/NZ 3018
CEI 64.8
HD 384
BS 7671
VDE 0413

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