تست کننده های سیستم زمین سری 1621
(Fluke 1621 GEO Earth Ground Tester)

 

 

بررسی اجمالی

Fluke 1621 GEO Earth Ground Tester

مشخصات فنی

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)
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)
Operating 0°C to +35°C (+32°F to +95°F)
Storage -20°C to +60°C (+68°F to +140°F)
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
Electrical Specifications
Maximum deviations E1 Influence factor Position
E1 Deviation influence 0%
E2 Influence factor Supply voltage
E2 Deviation influence 0%
E3 Influence factor Temperature E3
E3 Deviation influence 2.3%
E4 Influence factor Serial interference voltage (20 V)
E4 Deviation influence 0.6%
E5 Influence factor Probe- and auxiliary probe resistance
E5 Deviation influence 10%
Test voltage 3.7 kV
Protection type IP 40; IEC/EN 60529
Electromagnetic compatibility Emission IEC/EN 61326 Class B
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
Open circuit voltage 23 to 24 V AC
Short circuit current > 50 mA AC
Measuring frequency 128 Hz
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
Resolution 0.01 Ω
RH < 50 kΩ
Resolution 0.1 Ω
RH > 50 kΩ
Resolution 1 Ω
Interference voltage display DC + AC Vmax 30 Veff
Common mode rejection > 80 dB at 50 Hz and 60 Hz
Ri 680 kΩ
Measuring uncertainty < 10% for pure AC and DC signals
Measuring Range
0.15 Ω to 20 Ω Resolution 0.01 Ω
Display range 0 to 19.99 Ω
200 Ω Resolution 0.1 Ω
Display range 20 to 199.9 Ω
2 kΩ Resolution 1 Ω
Display range 200 to 1999 Ω
Intrinsic Uncertainty ±(6% of measured value + 5D)
Operating uncertainty IEC 615573 ±(18% of measured value + 5D)
1. If the tester is not going to be used, or is being stored for a long period, remove the battery and store separately from the tester to avoid damage from battery leakage.
2. The four temperature ranges for the tester exists to satisfy European Standards requirements; the instrument can be used over the full working temperature range by using the temperature coefficient to calculate accuracy at the ambient temperature of use.
3. Covers all deviations caused by influence quantities E1–E5. If the deviation E4 caused by high probe or auxiliary probe resistance is higher than specified flashes. Measured values are outside of the specified operating uncertainty.

 

 

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متعلقات

 این دستگاه شامل لوازم زیر است: 

Users manual
Two measuring leads with alligator clips, 2 m (6 ft)
One battery, 9 V alkaline (LR61)
One protective holster, yellow
One CD-ROM

کاتالوگ

Fluke 1621 GEO Earth Ground Tester