Earthing or grounding of electrical equipment is essential to maintain safety, protecting lives, as well as prevent damage to equipment. The FT3151 Analog EarthTester uses the AC phase differential system to measure earthing resistance, which assures that accurate measurements are unaffected by earth voltage and auxiliary earthing resistance. New innovate cord winders make clean up a breeze.
CAT II 300 V
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Wide measurement range for 0 to 1150 Ω, based on EN standard
Switchable measurement frequency to reduce the effects of power supply harmonics
Dramatically faster setup: Comes with improved grounding rods and cord winders
Basic Specifications
Measurement system
AC potentiometer method, Three-electrode method/ two-electrode method (switchable)
Measuring frequency: 575 Hz/ 600 Hz
Measurement current: Three-electrode method: 15 mA rms or less; Two-electrode method: 3 mA rms or less
Open circuit voltage: 50 V AC rms or less
Measurement range
10 Ω (0 to 11.5 Ω)
100 Ω (0 to 115 Ω)
1000 Ω (0 to 1150 Ω)
Nominal Deviation
±0.25 Ω
±2.5 Ω
±25 Ω
Functions
Auxiliary earth resistance check S (P)/ H(C)
Earth potential measurement
0 to 30 V, Nominal Deviation: ±3.0 % f.s.
Power supply
LR6 (AA) Alkaline battery ×6, 1100 times operation (at 30 sec. measurement/ 30 sec. rest cycle)
Dimensions and mass
164 mm (6.46 in)W × 119 mm (4.69 in)H × 88 mm (3.46 in)D, 760 g (26.8 oz)
Accessories
Auxiliary Earthing Rod L9840 (2 piece set) ×1, Measuring cable L9841 (alligator clip, black 4 m (13.12 ft)), Measurement Cable L9842-11 (yellow 10 m (32.81 ft), equipped with winder), Measurement Cable L9842-22 (red 20 m (65.62 ft), equipped with winder) ×1, LR6 (AA) Alkaline battery ×6, Carrying Case C0106 ×1, Instruction manual ×1
