janitza UMG511 Installation And Commissioning Manual page 68

Measurement inputs
Voltage measurement
Three-phase 4 conductor systems (L-N/L-L) : max. 417V/720V, max. 277V/480V for UL
Three-phase 3 conductor systems (L-L)
Resolution
Crest factor
Overvoltage category
Measurement surge voltage
Impedance
Power consumption
Scanning frequency
Transients
1)
U din acording to EN61000-4-30
Frequency of fundamental oscillation
Resolution
1)
U din = agreed input voltage according to DIN EN 61000-4-30
2)
The UMG511 can only ascertain measurement values when a measurement voltage higher
than 10Veff is applied to at least one voltage measurement input
68
Technical data
: max. 480V
: 0.01V
: 2 (relating to 480Vrms)
: 600V CAT III
: 6kV
: 4MOhm/Phase
: ca. 0.1 VA
: 20kHz/phase
: >50µs
: 100 .. 250V
: 15Hz..440Hz
: 0.001Hz