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LCD Contrast (Addr. 012)
The best direction to watch the display is "from
below". The LCD contrast of the display can be
adapted by the user. The contrast setting is pos-
sible in 1-steps in the range of 0 to 7. When the
device is delivered, the contrast is set to 3.
0 = Display very dark
7 = Display very light
To have the best result over the full range of
temperature, the inner temperature of the instru-
ment is measured and the contrast is amended
automatically. This automatic adaption to the
temperature is not indicated in contrast setting.
Field rotation (Addr. 277)
The field rotation and the frequency in phase L1
are indicated in one display.
The field rotation gives an information about the
phase sequence within three phase mains. A
clockwise rotation is normal.
In UMG96S the phase sequence of the voltage
inputs is checked and indicated. Clockwise mov-
ing dashes mean a clockwise rotation, a rotation
against the clock means an anticlockwise
rotation.
The field rotation is only determinded, when all
measuring and operating voltage has com-
pletely been attached. If a phase is missing or
two identical phases are connected, the field
rotation is not determined, and the dashes stay
still within the display.
Field rotation
Net frequency
L1
L2
L3
Hz
K1
K2
No field rotation determined
Net frequency
L1
L2
L3
Hz
K1
K2
Summary of Contents for UMG 96S
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