» External calibration of standardized PD measuring circuit according to IEC 60270 » Quantify the main PD quantity "apparent charge" » Magnitude of the calibrating pulses can be selected by the switch "Charge Magnitude" » Indication by a LED, if the powering battery becomes weak Specifications » Rated pulse charges: 5 - 20 - 100 - 500 pC » Internal calibrating capacitor: 100 pF, approx. » Pulse charge injection duration: 50 ns, approx. » Pulse repetition rate: 500 Hz, approx. » Mean current consumption: 25 mA, approx. » Specified values refer to a battery voltage level between 8 & 10 V Doble Lemke GmbH Zschoner Ring 9, 01723 Kesselsdorf / Dresden Germany www.doble-lemke.eu Doble Lemke AG Kaiserstrasse 9, 4310 Rheinfelden Switzerland www.doble-lemke.eu