Installation Instructions for Honeywell CTS-V and CTP-V Series Current Sensors

Quick guide from the manual

The Honeywell CTS-V and CTP-V series current sensors are designed for AC current monitoring. Important: These sensors do not require external power, as they are powered by the conductor being monitored. Always disconnect and lock out all power sources before installation to avoid electrical shock. Ensure a minimum distance of 1 inch (2.6 cm) between the sensor and other magnetic devices like contactors or transformers. These devices are not intended for Life or Safety applications or hazardous locations.

Product Overview

The CTS-V and CTP-V series are solid and split-core sensors that provide a linear 0-5 VDC or 0-10 VDC output signal. They are designed to monitor AC current in various equipment.

Installation

The sensor can be mounted in any position using two #8 x 3/4 inch Tek screws through the base mounting holes, or by snapping it directly onto a 35mm DIN rail.

Latch Operation for CTP-V Series

To open the split-core sensor:

• Press down on the side tab.
• Swing the top of the unit up.
• To close, press down firmly on the cover until an audible click is heard as the tab slides over the base tongue.

Caution: The mating surfaces of the magnetic core are exposed when open. Ensure no debris or dirt is present, as this can impair operation. Visually check the mating parts before closing.

Current Sensor Setup

The amperage range selected represents the maximum current that can be applied to the conductor. Do not exceed this limit. Sensors with selectable ranges are factory-set to the high range. Use the range selection jumper to adjust to the correct amperage range for your application.

Wiring

For all analog current sensor installations, use a two-conductor 16 to 22 AWG shielded copper cable. The maximum wire length between the sensor and the controller should be less than 30 meters (98.4 feet).

• Polarity: The terminals are polarity sensitive.
• Shielding: Connect only one end of the shield to ground at the controller to prevent ground loops. When removing the shield at the sensor end, trim it properly to prevent shorting.
• Torque: Tighten terminal block screws to 0.5 to 0.6 Nm (4.43 to 5.31 in-lbs).

Troubleshooting

If you encounter issues, follow these steps:

• No reading: Verify current is flowing through the conductor using a clamp-on probe. Check circuit polarity and ensure terminals are screwed down tightly. Measure voltage across the output with a voltmeter.
• Erratic readings: Ensure wires are terminated properly. In areas of high RF interference, shielded cable is required.
• Inaccurate readings: If the sensor is not reading within accuracy specifications, check for debris between the split contacts (for CTP-V models) and clean if necessary.