02/18 E01 10783511 WEB E cod.MF9600.
5
Nemo 96 HD
Level 2 Password = 2001
2.1
External VT or CT ratio
Ct = External primary/secondary CT ratio (ex. TA 800/5A Vt = 160)
Ct = Selection in the field 1...9999 (max. primary current CT 50kA/5A – 10kA/1A)
Vt = External primary/secondary VT ratio (ex. TV 600/100V Vt = 6)
Vt = Selection in the field 1,00...10,00 (max. primary voltage TV 1200V)
For voltage direct connection (without external VT) load Vt =1,00
By modifying the Ct and/or Vt ratios, the kWh meters are automatically
reset
Level 3 Password = 3002
3.0
Communication protocols (See point 3 page 19)
Phase sequence diagnostic
In the software of the device we have added a specific functionality to detect and correct
many problems concerning voltage and / or current connection.
This function can be activated through password and allows to display and modify the
connection sequence provided that the following conditions are respected:
1) The neutral wire
(in a 4-wire network)
is connected to the right terminal (normally num-
ber 1)
2) No crossings between cables connected to CT’s (e.g. avoid that on phase 1 of the meter-termi-
nals 1 and 3 - are connected some way both to CT1 and CT2)
.
3) The power factor is between 1 and 0,5 - Inductive load - for each phase.
See www.imeitaly.com “TECHNICAL SUPPORT”
.
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