Quick Install Guide
The below steps can be followed to quickly install a CurrentWatch
EDC Series sensor.
1. Run the wire to be monitored through the aperture, being sure
monitored current flow matches arrows on the sensor or as
noted on the figure to the right on this page.
2. Mount the sensor to a surface, if needed.
3. Connect output wiring:
a. Use up to 14 AWG (2.5 mm
2
) copper wires, tightening termi-
nals to 5.3 in.-lbs / 0.60 N·m of torque.
b. For current output models, make sure output load is no more
than 500 ohms.
4. Connect power using the appropriate power supply.
5. Select the correct range by positioning the Range Jumper.
Installation
Considerations for all EDC Series models…
•
Run wire to be monitored through the aperture (opening) of the
sensor.
•
Care should be taken to ensure current flow is in accordance with
any directional arrows on the sensor and as noted in the figure on
the right of this page.
•
These sensors can be located in the same environment as
motors, contactors, heaters, pull-boxes, and other electrical enclo-
sures.
•
Mounting can be done in any position or hung directly on a wire
with a wire tie.
•
For optimal performance, ensure the unit has been energized for a
period of 20 minutes prior to sensing operation.
Range Selection
The CurrentWatch EDC Series sensors feature field selectable rang-
es. The ranges are factory calibrated, eliminating time consuming
and inaccurate field setting of zero or span.
Stooing Rangt
1. Determine the normal operating amperage of your monitored
current.
2. Select the range this is equal to or slightly higher than the nor-
mal operating amperage.
3. Place the Range Jumper in the appropriate position.
Wiring and Mounting Information
Connect control or monitoring wires to the sensor. Use up to 14
AWG copper wire and tighten terminals to 5.3 in.-lbs / 0.60 N·m
maximum torque.
3 .3 7 5 in.
(8 5 .7 3 m m
EDC1420SC
DC Current Sensor
MID
HIGH
JUM PER RA NGE
M ID
1 0 A
HIGH
2 0 A
POWER
+
-
4-20mA
Output
1
2
3
4
Current Direction
U
n
ipo
la
r
B
ipo
la
r
(+)
(-)
CNnntcoiNn NNotse:
•
The current loop is powered by the sensor. Maximum loop
impedance is 800 ohms.
•
Ensure the direction of the monitored current is the same as the
direction shown on the diagram. The unipolar output design will
not operate properly if the current is opposite the direction of the
arrow.
•
Use 26-14 AWG copper wire.
•
Screw thread is M3 and screw torque is 5.3 in.-lbs / 0.60 N·m.
•
Remove jumper entirely for Low Range operation.
•
Observe polarity.
Unipolar Versus Bipolar Output
Output
Diagram
Unipolar Output
Bipolar Output
4
2 0
O
u
tpu
t
(m
A
)
F S
0
R a n g e
(S e n se d C u rre n t, A )
F S
- F S
R a n g e (S e n se d C u rre n t, A )
4
2 0
1 2
O
u
tpu
t
(
m
A
)
)
2
EATON
www.eaton.com
CurrentWatch™ EDC Series Current Sensors,
DC Current Sensor, Solid Core Housing with
Analog Output
Instructions Publication
P51926
Effective July 2017
