Rev. 3.00
22067_EDEBD
A0239-3617-3_EN
81
KBR multimess F144-2-LED-ESMS...-4
Technical data
12.3
Measuring principle
Sampling
128 readings per period
A/D converter
10 bit
Measurement of U and I
Simultaneous recording of U and I read-
ings;
Update speed
(complete measuring cycle)
~ 330 ms
Harmonics calculation
DFT with 128 points over one period
Frequency measurement
Consumption: Voltage measured between
phases L1, L2, L3 - N; correct frequency
measurement with power supply correction
12.4
Device memory
Main and data memory
2 MB RAM battery-buffered
Program and parameter memory
256 kB flash
Memory type
Ring buffer
Long-term memory (1 year)
- only for Comfort
Daily values for active and reactive energy
(HT and LT) for consumption and recovery
Long-term memory for
160 / 80 / 40 days / 64 hours
60 / 30 / 15 / 1 minute – average values of:
P
total
; Q
total
Extreme values (max./min.)
Extreme values that occurred after con-
necting the unit to the power supply
or after the extreme value memory was
deleted manually (maximum indicator
function) including date and time
Event memory:
Memory size
4096 events including date and time they
occurred
Limit violation
Time for acquisition ≥ 550 ms
Measuring voltage
dips
Time for acquisition ≥ 20 ms; threshold can be set using the
computer,
value after reset 85 % of rated voltage (in
accordance with EN 61000-4-30).
Measuring voltage
approx. 5 years acc. to manufacturer's
specifications
12.5
Power supply
Power supply
Power consumption <15 VA, 10 W
US1: 110 - 240V ±10 % DC/50/60 Hz
US5: 22.5 - 64 V ±10 % DC/50/60 Hz
