janitza UMG 96 RM-PN, Руководство пользователя

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UMG 96RM-PN
Direction of the rotating field
The direction of the rotating field of the voltages and
the frequency of phase L1 are displayed in a screen.
The direction of the rotating field specifies the phase
sequence in three-phase power grids. A “right-hand
rotation field” usually exists.
In the UMG 96RM-PN, the phase sequence is tested and
indicated on the voltage measurement inputs. A movement
of the character string in a clockwise direction means
there is a “right-hand rotation field” and an anticlockwise
movement indicates a “left-hand rotation field”.
The direction of the rotating field is only determined when the
measuring and supply voltage inputs are fully connected. If
a phase is missing or if two identical phases are connected,
the direction of the rotating field is not established and
the character string is stationary on the screen.
Fig. Screen for the mains
frequency (50.0)
and the direction of
the rotating field. Fig. Direction of
the rotating field not
detectable.
LCD contrast (addr. 035)
The preferred direction for observing the LCD display
is from below. The contrast of the LCD display can be
adjusted by the user. The contrast can be set in the range
from 0 to 9 in steps of 1.
0 = Characters very bright
9 = Characters very dark
Factory default setting: 5
Backlight
The backlight enables good legibility of the LCD display
under poor visual conditions. The brightness can be
controlled by the user in the range from 0 to 9 in steps
of 1.
The UMG 96RM-PN has two different types of backlight:
- Operating lighting
- Standby lighting