Metrel MI 3281 5M Standard set Transformer Testing (20 A)

Winding resistance (RH, RX, R10, R20, R30, R12, R23, R31)

Test current (20 A, 15 A, 10 A):

10.0 µΩ … 1999.9 µΩ / 0.1 µΩ / ±(0.25% of reading + 0.1% range)

2.000 mΩ … 19.999 mΩ / 1 µΩ / ±(0.25% of reading + 0.1% range)

20.00 mΩ … 199.99 mΩ / 10 µΩ / ±(0.25% of reading + 0.1% range)

200.0 mΩ … 1999.9 mΩ / 100 µΩ / ±(0.25% of reading + 0.1% range)

Test current (5 A, 1 A):

0.100 mΩ … 19.999 mΩ / 1 µΩ / ±(0.25% of reading + 0.1% range)

20.00 mΩ … 199.99 mΩ / 10 µΩ / ±(0.25% of reading + 0.1% range)

200.0 mΩ … 1999.9 mΩ / 100 µΩ / ±(0.25% of reading + 0.1% range)

2.000 Ω … 19.999 Ω / 1 mΩ / ±(0.25% of reading + 0.1% range)

Test current (100 mA):

1.00 mΩ … 199.99 mΩ / 10 µΩ / ±(0.25% of reading + 0.1% range)

200.0 mΩ … 1999.9 mΩ / 100 µΩ / ±(0.25% of reading + 0.1% range)

2.000 Ω … 19.999 Ω / 1 mΩ / ±(0.25% of reading + 0.1% range)

20.00 Ω … 199.99 Ω / 10 mΩ / ±(0.25% of reading + 0.1% range)

Test current (10 mA):

10.0 mΩ … 1999.9 mΩ / 100 µΩ / ±(0.25% of reading + 0.1% range)

2.000 Ω … 19.999 Ω / 1 mΩ / ±(0.25% of reading + 0.1% range)

20.00 Ω … 199.99 Ω / 10 mΩ / ±(0.25% of reading + 0.1% range)

200.0 Ω … 999.9 Ω / 100 mΩ / ±(0.25% of reading + 0.1% range)

1.000 kΩ … 9.999 kΩ / 1 Ω / ±(2% of reading + 2% range)

GENERAL SPECIFICATIONS

Test current accuracy: ±15%

Open terminal test voltage: <30 VDC

Max. short-circuit test current: 20 A

Automatic discharge: Yes

Mains power supply: 100 VAC ... 240 VAC, 45 Hz ... 65 HZ, 650 VA

Over-voltage category: 300 V / CAT II

Pollution degree: 2

Degree of protection: IP 65 (closed), IP 40 (open)

Dimensions: 470 x 190 x 370 mm

Weight: 9.3 kg (without accessories)

Display: 4.3'' (10.9 cm) 480 × 272 pixels TFT color display

Memory: > 1 GB

• MI 3281 Instrument

• A 1715 5M H-side test cable

• A 1716 5M X-side test cable

• A 1757 Large Kelvin test clip with jaw opening 65 mm

• A 1813 Tap changer control cable 10 m USB cable

• Mains cable

• A 1552 Bag for accessories

• Metrel ES Manager BASIC license

• Instruction manual

• Calibration certificate

Datasheet