Operating instructions
multicomp
Version 4.00
Page 57 of 62
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6.3 Measuring principle
6.4 Device memory
6.5 Power supply
6.6 Hardware inputs
6.7 Hardware outputs
Reading
64 values per period
A/D converter
10 Bit
Measuring U and I
Acquiring measuring values for U and I simultaneously;
Updating speed (complete measuring cycle)
~ 330 ms
Calculation of harmonics
DFT with 64 points over one period
Frequency measurement
Mode: Voltage measurement between phase Lx - N / Ly);
correct frequency measurement due to power supply correction
Data storage
512 kB RAM battery-buffered
Program and parameter memory
256 kB flash
Memory type
Ring buffer
Extreme values (Max./Min.)
The highest values that have occurred (maximum indicator function) since
switching on power supply or manually deleting extreme value
Event memory:
Memory size
4096 events
Limit violations:
acquisition time
≥
550 ms
Power supply
85 to 265V AC/DC; 15VA
Measuring voltage
input
U
PH-N
U
PH-PH
57.75V...
289V
...347V AC
100V ...
500V
...600V AC (over 500V AC PH-PH to 30,00KV AC PH-PH with
voltage transformer auxiliary)
Direct impedance
at least 2.5 MOhm
Measuring range
programmable
Temperature input
Measuring range
-20°C to 100°C ± 2°C /
- Connection for PT1000
temperature probe
Measuring input for
current
0.05A...
5A
...6A AC
for x/5A - transformer
0.01A...
1A
..0.2A AC
for x/1A - transformer
Power consumption
≤
2VA per input at 6A
Measuring range
programmable
Interface
Serial interface
RS 485 for connection to the Energy Bus;
a max. of 32 devices per bus segment, up to 1000 m without bus amplifier,
for additional information see installation guide KBR Energy Bus
Transmission speed
38400 baud
Bus protocol
KBR ENERGY BUS
Addressing
Can be addressed up to addr. 9999 via software, scanning mode can be
activated on the device
Module bus interface
Serial interface
RS 485 (RJ12) for ready-made KBR system cable (6 pole modular cable,
unshielded), max. length 30 m when placed accordingly.
