FLUKE 1621

General Specifications

Measuring functions

3-pole earth ground resistance, 2-pole ac resistance of a conductor, Interference voltage

Intrinsic error

Refers to the reference temperature range and is guaranteed for one year

Measuring rate

2 measurements/second

Battery1

One 9 volt alkaline (LR61)

Battery condition

LO-BAT is displayed if voltage drops below 6.5 V

Voltages Between jacks H/C2 and E/C1

250 Veff maximum (effective voltage)

Voltages Between jacks S/P2 and E/C1

250 Veff maximum

Climatic class

VDE/VDI 3540 RZ (conforming to KWG as per DIN 40040, 4/87)

Temperature performance2

Working: -10°C to +50°C (+14°F to +122°F)

Temperature performance

Operating: 0°C to +35°C (+32°F to +95°F)

Temperature performance Storage

-20°C to +60°C (+68°F to +140°F)

Temperature performance Reference

+23°C ±2°C (+73°F ±4°F)

Temperature coefficient

±0.1% of range per degree Kelvin

Safety

IEC/EN 61010-1, 600 V CAT II, pollution degree 2

Dimensions

113 x 54 x 216 mm (4.5 x 2.1 x 8.5 in), including holster

Weight

850 g (1.9 lb), including standard accessories, volume approximately 600 cm3

Measuring Range

0.15 Ω to 20 Ω Resolution

0.01 Ω

0.15 Ω to 20 Ω Display range

0 to 19.99 Ω

200 Ω Resolution

0.1 Ω

200 Ω Display range

20 to 199.9 Ω

2 kΩ Resolution

1 Ω

2 kΩ Display range

200 to 1999 Ω

Intrinsic Uncertainty

±(6% of measured value + 5D)

Operating uncertainty IEC 615573

±(18% of measured value + 5D)

Electrical Specifications

Maximum deviations E1 Influence factor

Position

Maximum deviations

E1 Deviation influence: 0% || E2 Deviation influence: 0% || E3 Deviation influence: 2.3% || E4 Deviation influence: 0.6% || E5 Deviation influence: 10%

Maximum deviations E2 Influence factor

Supply voltage

Maximum deviations E3 Influence factor

Temperature E3

Maximum deviations E4 Influence factor

Serial interference voltage (20 V)

Maximum deviations E5 Influence factor

Probe- and auxiliary probe resistance

Test voltage

3.7 kV

Protection type

IP 40; IEC/EN 60529

Electromagnetic compatibility Emission

IEC/EN 61326 Class B

Electromagnetic compatibility

Immunity: IEC/EN 61326 Annex C

RE Resistance measurement

Measuring method: Current-voltage measurement with improved cross-talk attenuation, no compensation of measuring lead resistance, with probe (3-pole) or without probe (2-pole), as per IEC/EN 61557–5

R Open circuit voltage

23 to 24 V AC

R Short circuit current

> 50 mA AC

R

Measuring frequency: 128 Hz

R Maximum permissible overload

250 Veff

Measuring time

8 seconds (average from when START is pressed)

Limit input

Tester retains set value even if instrument is turned off (assuming battery power supply is sufficient)

Automatic changeover of resolution RH

< 7 kΩ || < 50 kΩ || > 50 kΩ

Automatic changeover of resolution Resolution

0.01 Ω || 0.1 Ω || 1 Ω

Interference voltage display DC + AC

Vmax: 30 Veff || Common mode rejection: > 80 dB at 50 Hz and 60 Hz || Measuring uncertainty: < 10% for pure AC and DC signals

Interference voltage display DC + AC Ri

680 kΩ

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