The frequency meter Ö42304
panelboard, with pointered index is intended for measurement of frequency of an
alternating current.
Example of record of a designation
for a frequency meter with range of measurements 45 - 55 Hz, on rated voltage 220 V in
vertical positions.
Frequency meter Ö42304, 45-55 Hz, 220 V, 1 ÒÓ 25-7504.163-2002.
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