Fluke 434 User Manual download pdf (Page 28)

Fluke 433/434

Users Manual

6-2

Figure 6-1. Mounting the decals for voltage and current inputs

De-energize power systems before making connections whenever possible. Avoid

working alone and work according to the warnings listed in Chapter 1, Safety

Information.

For a 3-phase system make the connections as shown in Figure 6-2.

Figure 6-2. Connection of Analyzer to 3-phase distribution system

First put the current clamps around the conductors of phase A (L1), B (L2), C (L3), and

N(eutral). The clamps are marked with an arrow indicating the correct signal polarity.

Next make the voltage connections: start with Ground and then in succession N, A (L1),

B (L2), and C (L3). For correct measuring results, always connect the Ground input.

Always double-check the connections. Make sure that current clamps are secured and

completely closed around the conductors.

For single phase measurements, use current input A (L1) and the voltage inputs Ground,

N(eutral), and phase A (L1).

A (L1) is the reference phase for all measurements.

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Fluke 434 User Manual Page 28