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Polarisation Index (PI) and Dielectric Absorption Ratio (DAR)
User and Retest Period etc
Improved operating system architecture
1μF – 20mF Capacitance
This high specification clamp meter can perform insulation tests to 6G Ohms with 5 test voltages from 50V to 1000V
Martindale VT28 Voltage Indicator Bottom Entry Polarisation Index (PI) and DielectricMartindale VT28 Voltage Indicator 12 690V AC DC LED & LCD Voltage Display Single pole phase test 90 690V Phase rotation test 100 690V Continuity optical and acoustic indication Auto power off White LED torch light Description The Martindale VT28 is a tough, compact two pole tester with both LCD and LED displays for measuring AC DC voltages from 12V to 690V. Additional capabilities include continuity and phase rotation testing plus single pole voltage
