AEMC CA 6117 [2138.07] Multi-Function Installation Tester with DataView Software. The High performance C.A6117 offers excellent measurement stability, even in electrically noisy industrial environments. All the measurements needed to test an electrical installation are available: continuity, resistance, insulation, ground resistance, selective earth measurements, loop impedance and type A and AC RCDs (GFCI circuits). The 6117 can also be used to measure voltage, frequency, AC current (via a current clamp), active power, harmonics and phase rotation. The C.A6117 is also equipped with type B RCD testing, a built in fuse table and a voltage drop feature.