Chauvin Arnoux CA6418 Earth Clamp

The Chauvin Arnoux C.A 6418 is used to make loop impedance measurements in a parallel earth network, for example for power distribution poles, overhead contact lines, etc. These measurements are simpler to perform than the traditional measurements with two auxiliary rods The C.A 6418 earth/ground clamp, delivered in its carrying case, can be used for quick testing of earth loops, whatever their type. Its clamping capacity allows measurements on 30 x 40mm and 20 x 55mm rectangular bars and cables 32mm in diameter. The clamp simultaneously displays the earth-loop resistance and the leakage current. Due to ergonomic innovations such as the OLED display providing visibility over an angle of 180 degrees, in all lighting conditions, it is particularly easy to use. The automatic "pre-HOLD" function when the clamp is opened and the automatic calibration of the jaw gap at power-up ensure optimized processing of the measurements provided by the C.A 6418 clamp. FEATURES Wide measurement range from 0.010 Ω to 1200 Ω. Current from 0.5 mA to 20 A. Alarms configurable for Ω and A. Automatic Pre-Hold mode when the clamp is opened. 300 time/date-stamped measurements. Automatic calibration of the jaw gap at power-up. Buzzer and automatic power-off Chauvin C.A 6418 Specifications Loop Ohmmeter Ranges/resolution/accuracy 0.010 to 0.099 Ω / 1 mΩ / + (1.5 %R* + 0.01 Ω) 0.10 to 0.99 Ω / 10 mΩ / + (1.5 %R + 2 r) 1 to 49.9 Ω / 100 mΩ / + (1.5 %R + 2 r) 50 to 149 Ω / 1 Ω / + (2.5 %R + 2 r) 150 to 245 Ω / 5 Ω / + (5 %R + 2 r) 250 to 440 Ω / 10 Ω / + (10 %R + 2 r) 450 to 640 Ω / 10 Ω / + (15 %R + 2 r) 650 to 1,200 Ω / 50 Ω / + (20 %R + 2 r). No-load voltage ? 4.5 mV to 2,083 Hz. Ammeter Ranges/resolution/accuracy 0.5 to 9.995 mA / 50 µA / + (2 %R + 200 µA) 10.00 to 99.90 mA / 100 µA / + (2 %R + r) 100.0 to 299.0 mA / 1 mA / + (2 %R + r) 0.300 to 2.990 A / 10 mA / + (2 %R + r) 3.00 to 20.00 A / 100 mA / + (2 %R + r). Setup Alarms Configurable for Z and I. Buzzer Active. HOLD Manual or automatic PRE-HOLD. Automatic power-off Active / Inactive. General Specifications Display OLED 152 segments - Active area 48 x 39 mm. Storage 300 time/date-stamped measurements. Power supply 4 x 1.5 V LR6 AA alkaline batteries or 4 NiMH batteries. Battery life 2,400 x 30 s measurements. Calibration Automatic at start-up. IEC 61010 100 V CAT IV , 150 V CAT III. Protection IP40. Dimensions 300 x 106 x 56 mm. Weight 1.2 kg approx. including batteries. C.A 6418 warranty Two-years.

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