ANALOG (4-20 mA) OUTPUTS
The PowerTrak provides two separate 4-20 mA analog signal outputs. Each output can individually be set by DIP
switches to represent a different power parameter. Select from Total KW, Window KW, Peak Window KW, Total
KVA, Total Power Factor, True RMS Voltage, and True RMS Current. See Table 4 for DIP switch settings. The
“LOOP 1 UP” and “LOOP 2 UP” LED’s will be “ON” when a valid current loop is connected in series with these out-
puts. If these LED’s are “OFF” there is an open circuit in the current loop. Both 4-20mA output loops require an
external 24 VDC power supply.
Total KW
The Total KW parameter is the total instantaneous KW demand for a three-phase or single phase electrical system.
Window KW
The Window KW parameter is a fifteen minute sliding window average of KW demand. The sliding window KW
value is updated on thirty second intervals with the KW data from the oldest interval constantly being replaced by
the KW data from the most recent interval.
Peak Window KW
The Peak Window KW parameter represents the highest (peak) sliding window KW value measured by the
PowerTrak. The peak window KW value is updated on thirty second intervals and will change in value only if the
current sliding window KW value is greater than the current peak window KW value.
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8
X2
X1
H1
CT
L
N
L
N
L
I
N
E
L
O
A
D
CT H1 should face
Line side
CTC
X2 X1
CTB
X2 X1
CTA
X2 X1
CT INPUTS
SYSTEM VOLTAGE
CONNECTIONS
NEUTRAL
L3
L2
L1
No
Connection
No
Connection
No
Connection
No
Connection
No
Connection
JUMPER
X2
X1
H1
CT
L1
N
L1
X2
X1
H1
CT
L2
L2
N
L
I
N
E
L
O
A
D
CT H1 should face
Line side
CTC
X2 X1
CTB
X2 X1
CTA
X2 X1
CT INPUTS
SYSTEM VOLTAGE
CONNECTIONS
NEUTRAL
L3
L2
L1
SINGLE-PHASE 3-WIRE SYSTEMS
SINGLE-PHASE 2-WIRE SYSTEMS
*
*
* *
Make CT connections
to terminal strip on optional
CT shorting assembly if
present. See Fig.1
*
Make CT connections
to terminal strip on optional
CT shorting assembly if
present. See Fig.1
1
When using the SCT Series
current transformers with the
PT-9300, recommended wiring
is a twisted shielded pair for
each CT to avoid noise pick-up.
Ground shield wire at
PT-9300 ground lug only.
1
1
1
When using the SCT Series
current transformers with the
PT-9300, recommended wiring
is a twisted shielded pair for
each CT to avoid noise pick-up.
Ground shield wire at
PT-9300 ground lug only.
Fig. 2 - WIRING - SINGLE-PHASE POWERTRAK APPLICATIONS
EQUATIONS
