9200 Power Supply Retrofit Instructions Wiring the Power Supply
Page 3
Wiring the Power Supply
The meter requires a constant power supply to maintain monitoring, analysis,
control, and communications operations. Powering the device from the voltage
source it is monitoring is not suitable for applications where these operations must
be maintained in the event of a power outage.
Wiring the Standard AC/DC or Low Voltage DC Power Supply
Standard AC/DC Power Supply
Connect the line supply wire to the L+ terminal and the neutral supply wire to the
N- terminal.
Low Voltage DC Power Supply
Connect the positive supply wire to the L+ terminal and the negative supply wire
to the N- terminal.
The power supply G (ground) terminal must be connected to the same point as the
meter terminal.
Protective Fuses
If a Standard AC/DC or a Low Voltage DC power supply is being used, install a
Type T (slow blow) 2A fuse on the L+ conductor. If the meter is powered by a
grounded neutral power system, a fuse must NOT be installed on the neutral wire.
If the line connected to the N/- terminal is not grounded in the breaker panel, then
install a Type T (slow blow) 2A fuse on the N- terminal.
G
L
+
N
-
2A fuse on L+ and N-.
DO NOT install the N-
fuse in a grounded
neutral power system
Use 18 to 14 AWG
(0.8mm
2
to 2.1mm
2
) wire
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