82
UMG 512
Frequency measurement
The UMG 512 requires the mains frequency for
the measurement. The mains frequency can be defined
by the user or automatically determined by the device.
• For the UMG 512 to automatically determine
the frequency, a voltage L1-N of greater than
10Veff must be applied to voltage measurement
input V1.
• The mains frequency must be in the range from
15Hz to 440Hz.
• If there is no sufficiently high measured voltage
available, the UMG 512 cannot determine
the mains frequency and thus cannot perform any
measurements.
Direction of the rotating field
Check the direction of the rotating field voltage
in the measured value display of the UMG 512.
A “right” rotation field usually exists.
Presentation of the phase sequence according to the
direction of the rotating field.
UL1-UL2-UL3 = right rotation field
UL1-UL3-UL2 = left rotation field
Содержание UMG 512
Страница 15: ...15 UMG 512 ...
Страница 115: ...115 UMG 512 ...
Страница 116: ...116 UMG 512 Dimension diagrams Cut out size 138 0 8 x 138 0 8 mm Rear side Patch cable ...
Страница 117: ...117 UMG 512 Side view View from below ...
Страница 122: ...122 UMG 512 ...
Страница 123: ...123 UMG 512 ...