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Installation Guide
Current Sensors
H421/H421SP
Dimensions
Installation
Z201200-0G
Page 2 of 4
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5.50"
(140 mm)
2.45"
(62mm)
1.13"
(29 mm)
4.90"
(125 mm)
Disconnect and lock out power to the enclosure containing the conductor to be
monitored.
1. Choose a location for the sensor. The monitored conductor must pass
through the center window, and the sensor must be at least ½" (13 mm)
from any uninsulated conductors. Determine cable routing for the controller
connection, allowing the sensor to reach the conductor.
2. Wire the output connections between the sensor and the controller
(4-20 mA).
3. Snap the sensor over the conductor to be monitored.
4. Secure I-bar to main body of sensor with wire ties or other securing method.
5. Secure the enclosure and reconnect power.
6. Scale the sensor range, then scale the controller software to match the sensor's output (see Scaling section).
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Other companies' trademarks are hereby acknowledged to belong to their respective owners.
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5.92"
(151 mm)
8.13"
(207 mm)
Wire tie
.com
CONTACTOR
DIGITAL CONTROL
+
AI
–
+
–
12-30VDC
Power Supply
Motor
Fan or Pump
06132
sales@GlobalTestSupply.com
TM
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