The Chauvin Arnoux CA 6550 and CA 6555 megohmmeter are tools of excellence to perform insulation checks with safety and precision. Their use on equipment and rotating machines, operating at 12 kV and above, complies with recommended practices. The multiple test modes allow both qualitatively qualifying non-control isolations. Also it investigate the problems on samples of insulation aging for the purpose of preventive maintenance.

Measuring range from 10 kΩ to 30 TΩ
Fixed or programmable test voltage from 40 V to 10/15 kV
5 mA load current
Real-time graphic display R (t) + u (t), i (t), i (u)
DAR / PI / DD / ΔR ratios (ppm / V)
Ramp and voltage step modes with burning mode,
"Early break" and "I-limit"
3 filters to optimize measurement stability
Calculation of R at a reference temperature
Memory capacity 80,000 measurements and Real time clock
Report generation via DataView software