Description
The moving-iron panel meters EQ 72/96 SWT (K series) housed in
moulded thermoplastic cases are used for the measurement of AC voltages in the usual 3-phase system.
Moving–iron meters indicate rms–values practically independent of
wave form even of high harmonics. Error of indication may occur for
extreme wave forms (e.g. phase gating controls) and / or frequencies
above 100 Hz.
With the built-in 6 position switch, all voltages in a 4-wire 3-phase system can be measured.