ANALOG EARTH TESTER FT3151
Classic Ground Resistance Tester Using 3-Pole Method with Easy Cord Winding System
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.

Model No. (Order Code)

FT3151
CE

CAT IV 600V

Key Features

• Three-electrode method, Two-electrode method (Simple Measurement)
• 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 (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)
To ensure safety, use the optional Test Lead L9787 when making measurements using the two-electrode method.

Measurement systemAC 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 range10 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
FunctionsAuxiliary earth resistance check S (P)/ H(C)
Earth potential measurement0 to 30 V, Nominal Deviation: ±3.0 % f.s.
Power supplyLR6 (AA) Alkaline battery ×6, 1100 times operation (at 30 sec. measurement/ 30 sec. rest cycle)
Dimensions and mass164 mm (6.46 in)W × 119 mm (4.69 in)H × 88 mm (3.46 in)D, 760 g (26.8 oz)
AccessoriesAuxiliary 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
Catalog: ANALOG EARTH TESTER FT3151Download PDF  [1MB]English

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