The multifunction Sigma GT tester from Zedflo is intended to perform all measurements for testing the electrical safety of portable electrical equipment. The instrument has a powerful test data management system, where auto tests and single tests can be stored in approximately 6000 data flash memory locations.
The Sigma GT operates on either mains power or batteries and comes with a built-in battery charger, soft Qwerty keypad and a large backlit LCD graphics display. The extended communication facility supports use of RS232 and Bluetooth barcode scanners and encompasses support for reading and writing RFID tags. The PATLink PRO data management system enables upload to PCs, as well as test result and parameter download for further data handling, trend analysis and test report creation.
Test function options include: portable RCDs and RCD protected cables, simple connection for PRCD test via mains test socket and IEC cord, complete testing (earth bond, leakage, PRCD test and polarity) without reconnection of the tested item, insulation-S and substitute-S subfunctions for testing Class II devices, enabling consistent testing of Class II parts of combined appliances, optional 10 A earth bond test, RCD test and voltage function. The active polarity function allows testing of leads with integrated RCD protection while voltage is applied to the tested item, which enables RCD operation during the test, as most PRCDs must be powered to be switched on.
Key features include: 240 x 128 dot backlit LCD, three ports (1 x USB and 2 x RS232C) for communication with PC, barcode scanner and printer, a built-in real-time clock, preprogrammed test sequences, on-site comparison of old and new test results, as well as on-site printing of test labels.