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Ultra lightweight (6.9kg) 1-200Adc test current with <2.5% ripple Supplied with standard 3m output lead set 0.1μΩ resolution mV, A, and m/μΩ displayed simultaneously USB memory key for data storage USB keyboard for comment entry Pre-settable test current with three buttons to store user test currents Large back-lit liquid crystal display Universal supply voltage 90-264V Optional current clamp to allows testing of objects with both sides earthed The PT18-10 mk2 high voltage dc test set is designed to perform tests on installed cable and jointing systems. The 18kV 10mA DC Tester has a variable output voltage with a maximum of ±18kVdc with a maximum charging capability of 10mA. A zero-volt interlock is fitted that prevents the output being switched on unless the output control is at zero. Units include an automatic load discharge system that discharges the cable under test when the output is switched off or a breakdown occurs. Internal dumping system can discharge a maximum of 2.5kJ on each output, corresponding to 10µF at 18kV. In the event of a test object failure, the overload circuit will automatically switch off the output voltage and earth the output via the internal discharge circuit. A DP20 discharge probe is supplied as standard with the PT18-10 mk2, 18kV 10mA DC Tester, allowing higher load capacitances to be safely discharged. The 18kV 10mA DC Tester has an internal fail-safe automatic discharge system with the following ratings: Max. discharge voltage (kVdc) 20kVdc Highest discharge energy 2.5kJ Highest discharge capacitance 10μF Max. discharges per hour 4 The automatic discharge switch is controlled by a solenoid. It may produce a noticeable hum when the HT output is energised. Output voltage is metered by two large, linear, analogue instruments marked 0-20kV. Meanwhile, current is metered by two further analogue instruments with 0-10 scale marking. The meters read 0-10mA directly, or 0-1mA when the ÷10 push button is operated. The HV output from the unit uses a high quality plug and socket system, allowing for easy cable replacement. High voltage plugs are protected in transit by plastic covers and are fully de-mountable. Screened 5 metre long high voltage output cables are provided with the equipment terminated with large clips. The mk2 units introduce automatic 115/230V mains voltage selection. That along the padded bag ensure maximum protection during transit.