SPECIFICATIONS HIOKI FT3151 ANALOG EARTH TESTER
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.
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
Auxiliary earth resistance check S (P)/ H(C)
Earth potential measurement
0 to 30 V, Nominal Deviation: ±3.0 % f.s.
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)
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
Introduction Hioki FT3151 Analog Earth Tester
– 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
Established in 1935, HIOKI E.E. CORPORATION (TSE: 6866) has grown to become a world leader in providing consistent delivery of test and measuring instruments through advanced design, manufacturing, and sales and services. By offering over 200 main products characterized by safety andquality while meeting an expansive range of applications, we aim to contribute to the efficiency and value of our customers’ work in research and development, production and electrical maintenance.