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or 4 x Ni-MH rechargeable batteries Maximum operating voltage 500 V RMS Operating temperature -10°C
both in overhead and cable networks (measuring category of the device: CAT IV 600 V)
Measurement of the continuity of protective connections and equipotential bondings with a current exceeding 200 mA meets the requirements of EN 61557-4 standard
base on input reflection environment temperature
the two-clamp method
TKF -12 Phase Sequence Tester (120-690V) 10-70 Hz Light Meters or 4 x Ni-MH rechargeableDESCRIPTION Check phase sequence The ergonomic phase sequence tester Sonel TKF 12 is a proven measuring tool, whose main task is to control 3 phase electrical installations. Phase sequence tester signals compatible or opposite connection, additionally it also shows the symmetry of voltages in individual phases. The instrument is suitable for a wide range of phase to phase voltages (operating range is 120 to 690 V, frequency 10 to 70 Hz) in
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