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WARNING:
!
•
This product is not intended to be used for Life or Safety applications.
•
This product is not intended for use in any hazardous or classified locations.
•
The A/CTA2 and A/SCTA2 Series Current Sensors must be used on Insulated Conductors Only!
HIGH VOLTAGE:
•
Disconnect and lock out all power sources before installation as severe injury or death may result from electrical
shock due to contact with high voltage wires.
Installation
Make sure that all installations are in compliance with all national and local electrical codes. Only qualified individuals that are
familiar with codes, standards, and proper safety procedures for high-voltage installations should attempt installation. The
current sensor is a 2-wire, 4 to 20 mA Loop Powered device that requires a regulated +13.5 to 30VDC external power source.
The current sensor may be mounted in any position using the two #8 x ¾" Tek screws and the mounting holes in the base, or
snapped directly on to the 35mm DIN rail (See Figure 1). Leave a minimum distance of 1" (3 cm) between the current sensor and
any other magnetic devices such as contactors and transformers.
Latch Operation for A/SCTA2 Series
Press down on the side tab and swing the top of the unit up to open the split core current sensor as shown in Figure 2. Press down
firmly on the cover to close the current sensor. An audible "click" will be heard as the tab slides over the tongue on the base.
!
CAUTION: Mating surfaces of the magnetic core are exposed when the sensor is open. Electrical contact grease, present on
the cores to prevent corrosion, can capture grit and dirt if care is not exercised. Operation can be impaired if anything prevents
good contact between pole pieces. Visually check the mating parts of the core before closing the current sensor.
AUTOMATION COMPONENTS, INC
2305 Pleasant View Road
Middleton, Wisconsin 53562 (888) 967-5224
www.workaci.com
A/SCTA2-5, A/SCTA2-50, A/SCTA2-200, A/SCTA2-50-RMS
Please Read Instructions Carefully Before Installation!
Figure 1: Sensor Placed on Rail
Figure 2: Opening A/SCTA2 Series
Installation and Operation Instructions
Part # A/CTA2-5, A/CTA2-50, A/CTA2-250,
A/CTA2-50-RMS, A/CTA2-250-RMS,
Page 1 of 3
Version : 5.0
I0000789
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Related Manuals for aci A/CTA2-5
Summary of Contents for aci A/CTA2-5
- Page 1 Installation and Operation Instructions Part # A/CTA2-5, A/CTA2-50, A/CTA2-250, A/CTA2-50-RMS, A/CTA2-250-RMS, A/SCTA2-5, A/SCTA2-50, A/SCTA2-200, A/SCTA2-50-RMS Please Read Instructions Carefully Before Installation! WARNING: • This product is not intended to be used for Life or Safety applications. • This product is not intended for use in any hazardous or classified locations.
- Page 2 Wiring ACI recommends the use of a two conductor 16 to 22 AWG shielded cable, copper wire only, for all 4 to 20mA current sensor installations. A maximum wire length of less than 30 meters (98.4 feet) should be used between the current sensors and the Building Management System or controller.
- Page 3 Troubleshooting Problem Solution No reading - Confirm that you have +13.5 to 30VDC in series with the current sensor output terminals and the analog input of the control panel. - Check the polarity of the circuit. - Verify that the terminals are screwed down, wires are firmly in place.