Metrel MI 3288 Earth / Insulation Tester
- Brand
- Metrel
- Model number
- MI 3288
- Category
- Earth Resistance Testers
Combined earth and 2.5 kV insulation tester: 2/3/4-wire, selective and 2-clamp earth resistance, soil resistivity, earth potential, 2 A µΩ meter, 200 mA and 7 mA continuity, voltage, current and varistor test.
Price and availability on request
Key features
- 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
Specifications
| Riso at Un = 2.5 kV | 0 kΩ ... 99.9 GΩ; ±(3 % of reading + 3 digits) up to 999 MΩ |
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| 200 mA with polarity change | 0.020 Ω ... 1.999 kΩ; ±(1 % of reading + 2 digits) |
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| 7 mA (continuous) | 0.0 Ω ... 999 kΩ; ±(0.5 % of reading + 5 digits) |
| 1 A, 2 A / 100 mA / 10 mA | 0.000 mΩ ... 199.9 Ω; ±(0.25 % of reading + 4 digits) |
|---|
| 2/3/4-wire method (55 - 164 Hz) | 0.010 Ω ... 19.99 kΩ; ±(3 % of reading + 3 digits) |
|---|---|
| 4-wire with one current clamp (selective) | 0.010 Ω ... 19.99 kΩ; ±(8 % of reading + 3 digits) |
| 2-clamp method | 0.000 Ω ... 100 Ω; ±(5 % of reading + 5 digits) up to 1.999 Ω |
| Specific earth resistance (Wenner, Schlumberger) | 0.00 Ωm ... 1.99 MΩm (calculated) |
| Earth potential / step and touch | 0.00 mV ... 49.99 V, ±(1 % of reading + 3 digits) / 0.1 V ... 999 V (calculated) |
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| TRMS / DC voltage | 0.000 V ... 749.9 V / 0.000 V ... 999.9 V |
|---|---|
| Frequency | 15.00 Hz ... 1200 Hz |
| With iron clamp A 1281 / flex clamps A 1227, A 1609 | 10 mA ... 999 A / 0.6 A ... 5.99 kA |
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| Breakdown voltage | 0.0 V ... 2.50 kV |
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| Measuring category | 300 V CAT IV; derate to 600 V CAT II |
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| Power supply | 7.2 V (4400 mAh Li-Ion battery pack) |
| Display | 4.3" colour LCD display with backlight and touch screen |
| Communication | BT, USB |
| Degree of protection | IP 54 |
| Dimensions (w x h x l) / weight | 250 x 110 x 160 mm / 1.6 kg |
| MI 3288 Standard set | MI 3288 Earth Insulation Tester; Battery pack 7,2 V 4400 mAh; Power supply adapter 12 V/3 A; 2,5 kV test lead, 2 x 1,5 m; Test lead, green, 1,5 m; Test lead, 4 x 1 m; Test probe, 2 pcs (red, black); Crocodile cclip, 4 pcs (black, blue, green, red); Soft carrying bag; Soft carrying neck belt; USB cable; PC SW Metrel ES Manager BASIC License; Short instruction manual; Instruction manual; Calibration certificate |
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Specifications are from the manufacturer's published information. Confirm critical values with us or the datasheet before ordering.
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