GARO ENTITY PRO, Installation And Operation Manual

Page: 53 / 102

The input terminals 1, 3 and 5 are internally
connected to PE in the load interface.
Wires -L are recommended to be light-twisted as
pairs, to reduce induced disturbances.
9. Attach the current transformer clamps to the
measured current.
10. Make sure that the metal contact surfaces are really
clean before closing the current transformer (CT)
clamps. Close the current transformer (CT) clamp. A
click is heard when it locks.
CAUTION
Note the current direction of the cable (D) and the
position of the positive (K) and negative (L) cable of the
current transformer (CT) clamp.
11. The GARO Entity Balance BASIC is prepared for
HAN communications to the modern main utility
meters, based on RJ12 or RJ45 connections. HAN
is only available on GARO Entity Balance basic.
NOTE
HAN:
Several grid utility companies require an owner to
formally order an activation of the HAN-port. To
establish what applies for a specific location, contact
applicable grid utility company.
The HAN utility energy meter must also have an
integrated 5VDC source in the HAN RJ12 connector.
Not all HAN-meters are equipped with an integrated
5VDC source in the HAN RJ12 connector. If the HAN-
meter is without a 5VDC source, an active adapter can
be used instead. If other components/receivers need to
use the RJ12 HAN port, use a passive “Y-splitter”.
K L
CT3
CT1
L1 L2 L3
CT2
GRID
LOAD
CT2-/GND(Black) L
CT1-/GND (Black) L
CT2+ (White) K
CT1+ (White) K
CT3-/GND(Black) L
CT3+ (White) K
CT+ (white) K CT
-/GND (black) L
D
E
F
Version: 1.3 53
Installation