
56/89 Device handbook A
PLUS
with / without LED display
,
157
679-19, 04/2016
Zero suppression, range limitations
The measurement of specific quantities is related to a pre-condition which must be fulfilled, that the
corresponding value can be determined and sent via interface or displayed. If this condition is not fulfilled,
a default value is used for the measurement.
Quantity
Condition
Default
Voltage
Ux < 1% Ux
max
0.00
Current
Ix < 0,1% Ix
rated
0.00
PF
Sx < 1% Sx
max
1.00
QF, LF
, tanφ
Sx < 1% Sx
max
0.00
Frequency
voltage and/or current input too low
1)
44.90
Voltage unbalance
Ux < 5% Ux
max
0.00
Current unbalance
mean value of phase currents < 5% Ix
max
0.00
Phase angle
at least one voltage Ux < 5% Ux
max
120°
Harmonics U, THD-U
fundamental < 5% Ux
max
0.00
1)
specific level depends on the device configuration
Power supply
via plug-in terminal
Nominal voltage:
100…230V AC ±15%, 50...400Hz
24...230V DC ±15%
Consumption:
≤ 7...10 VA, depending on the device hardware used