Home > Products > CIT–XTV Aerial Sensor for Transmission Antenna Deicing

Features & Benefits

• Energy efficient for low operating costs
• Reliable antenna operation during icing conditions
• Heating starts before ice accumulates
• Adjustable heater hold-on timer completes ice melting after precipitation stops
• Lightning and EMI resistant
• Low cost
• Simple installation
• Single or 3-phase power control

Note: The CIT-XTV aerial sensor operated directly from a "B" series control panel. However the "B" series product line is considered to be entering into the end of its product lifetime and are only available in limited supply. The "B" series includes the the APS-3B control panel, the APS-4 control panel, the SC-40 satellite contactor, and the RCU-1 remote control.

In order for the CIT-XTV aerial sensor to operate with a "C" series control or an EUR-5A control the customer needs to also purchase a power supply for the CIT-XTV or provide 24VAC unrectified. The "C" series includes the APS-3C control panel, the APS-4C control panel, the SC-40C satellite contactor, the RCU-3 remote control and the RCU-4 remote control.

Description

An antenna ice melting system employs the CIT-XTV aerial sensor located adjacent to the transmitting antenna. Normally located in the transmitter shelter building and within 2,000 feet of the sensor, an APS-3C, APS-4C or EUR-5A snow/ice melting control interfaces the sensor with the heater(s). The sensor employs special filters and circuit design techniques to minimize susceptibility to EMI and lightning damage.

When using the CIT-XTV sensor, heaters operate at 38°F (3.3°C) during precipitation and for the hold-on timer interval, from 0-10 hours. The CIT-XTV sensor prevents heater operation at temperatures below 0°F (−17.8°C) to save electrical energy and to prevent partial ice melting. Heaters operate for the hold-on time as temperature increases above 0°F (-17.8°C) if precipitation occurred during lock-out.

The APS-3B and APS-4 control panels interface the sensor with the integral power control contactor. The EUR-5A control interfaces the sensor with a customer supplied power control contactor in the customers equipment panel. The control provides status indicators, adjustable heater hold-on timer, and bypass switch.

The CIT-XTV operated from customer supplied 24VAC unrectified or from a power supply purchased seperately from Environmental Technology. The power supplies are available at either 120 VAC or 208-240 VAC.