HT Instruments COMBI421


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Primo number :HTCOMBI421
Brand :HT Instruments
Brand number :COMBI421

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HT-INSTRUMENTS COMBI421 MULTIFUNCTION INSTALLATION TESTER COMBI421 is an innovative multifunction installation tester designed to perform all safety tests on electrical installations in compliance with safety standards (VDE0100, BS7671) and save results of environmental parameters (illuminance, temperature), leakage current, active power, harmonics, power factor measurements on single phase systems. The meter is very user-friendly, extremely rugged thanks to its newest electronic range selector and provided with a wide number of features which are selectable through the multi-language menu. Moreover the model allows to carry out main measurements by using a special remote switch probe (optional accessory PR400) particularly useful to perform tests in rapid succession as well as AUTO function to perform sequential measurements of global earth resistance, test on RCDs up to 1A rated current and insulation directly on sockets. A help menu selectable by user is available for each measurement granting information during connection between meter and installations. A wide internal memory permits saving any measurement and later transferring them to PC through serial port with dedicated software. Each measurement can be saved with all sub-results and test parameters with two ID locators (selectable by user) in order to trace the exact point where the measurement was performed Function Continuity test with 200mA Insulation with 50, 100, 250, 500, 1000VDC Trip out time of RCDs type AC, A Standard and Selective up to 1A Trip out current of RCDs type AC, A Standard and Selective up to 1A Line/Loop fault impedance Line/Loop impedance with high accuracy (with IMP57 optional accessory) Prospective short circuit current Contact voltage Global earth resistance without RCD tripping Phase sequence indication AUTO function (Ra + RCDtest + Insulation) on plug AC TRMS voltage and current Active, reactive, apparent power and power factor on single phase system Harmonics voltage/current up the 49th and THD% on single phase system Environmental parameters measure (°C, °F, %RH, Lux) Measure with remote probe (with PR400 optional accessory) Leakage current Data HOLD Help at display Internal memory Optical-USB interface with PC connection

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