Specifications

T4.37

Measurement instruments

The scaleplates of the analogue Ammeters can be

easily interchanged as is illustrated in photo 1.

Using a digital Ammeter in combination with a

current transformer, requires the correct set-up of

the Ammeter. The multiplying factor is set by means

of dip-switches as is shown in figure 8.

Frequency meter and

hour counter

Figures 9, 10 and 11 show the connection of the

frequency meters and of the hour counters. Note

that in the case of the digital frequency meter, the

internal electronics are supplied externally through a

separate auxiliary supply.

Wattmeter

The single- and three-phase Wattmeters are

connected as shown in figures 12 and 13.

fig.9

fig.10

fig.12

fig.13

fig.11

fig.8

photo 1