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Automatic Activation means Lower Deicing Costs
Reliable Rain and Snow Detection
Dual 30A @ 240VAC Control
Field Strap for 100-120/200-240 VAC Operation
Replaceable Precipitation Sensor
Easy Installation, Full Access to Electronics
8 Different Functions, 1 Part Number
Adjustable Temperature Trigger Point
Adjustable Delay Off Cycle
Selectable Low Temperature Cutoff
Smart "Manual On" Operates for One Delay Cycle
High Power, Low Price!

The DS-5 is essentially a DS-2B fitted with a dual 30A @ 240 VAC load control contact set. It is primarily designed for larger satellite antenna/broadcast tower deicing and pavement snow melting applications. Specifically, any job that a DS-2B can perform a DS-5 can perform with double the load handling capability.

The unit is housed in a two gang PVC enclosure. The overall dimensions of the DS-5 are 4¾"(120) x 7"(178) x 2¾"(70). The unit weighs 2 pounds. The user may access all electronics by removing the four front cover screws.

Wiring is performed by terminating your existing wiring to the pre-installed pigtails (see below.) The DS-5 is mounted by either attaching the mounting hub to a rigid ½" or ¾" conduit or by installing screws through the four mounting tabs provided.

The DS-5 can be powered from either a 100-120 VAC or 200-240 VAC 50/60Hz source. Peak power consumption is 15 watts. Voltage selection is performed by installing provided jumpers onto the printed circuit board. The unit provides a dual 240VAC @ 30A normally open load contact set. This contact set is paralleled with a low power contact set to provide remote activation monitoring. Operational temperature range is -40^oC to +85^oC.

An environmentally sealed control switch is provided. The "Manual On" function activates the controlled equipment for testing and special operational conditions. The "Automatic" position allows the DS-5 to handle all detections and control. The "Standby/Reset" position disables triggering and can also be used to clear the delay off timer (see below) from true or test activation. Remote control and monitor up to 1000 feet away is also available when the optional C/M cable listed is installed. The DS-5 is also compatible with the DP-7B, DP-7EX, and CDP-2 remote control/status panels.

A new feature has been added to the DS-5. If the switch is placed in "Manual On" for less than 2 seconds, then switched back to "Automatic" the controller will execute one delay off cycle. The delay off cycle is determined by the DEL switch setting and the DEL adjustment, i.e., 2 minutes in "sensor" mode, 30-90 minutes in "controller" mode. This can be used to clear surfaces with a frost or hail buildup without the danger of leaving the system in a continuous "Manual On" condition. "Standby/Reset" can still be used to clear this delay off cycle.

The table below outlines the operating modes for the DS-5. Trigger Temperature (TT) is adjustable from 34^oF-44^oF using an on-board control. When ambient air temperature (AT) is below this trigger point precipitation is assumed to be snow or freezing rain. When above the trigger point, precipitation is assumed to be rain.

"Delay Off" refers to the internal drying cycle timer of the DS-5. The timer is used to allow the DS-5 to dry the heated surface through evaporation once precipitation has stopped. The drying cycle reduces the chance that moisture left behind by the melting process will refreeze into ice. This timer is restarted by each precipitation detection. Therefore, the DS-5 will continue to operate as long as precipitation and trigger temperature is detected, then for the "Delay Off" time once rain or snow stops. It is assumed that, when operating as a sensor, the DS-5 is supplying an activation signal to an external control system. All "sensor" modes provide a minimum 2 minute closure to reducing cycling of the external controller. When in a "controller" mode the Delay Off time can be adjusted from 30-90 minutes. Proper adjustment assures drying without excessive runtime.

The Low Temperature Cutoff (LTC) option is typically used on deicing or snow melting systems with limited output capacity. If selected, the sensor will not trigger if precipitation is detected below 15^oF. However, if the deicing system has been activated, precipitation continues, and the ambient temperature drops below 15^oF, LTC will be ignored. This assures that water left behind on the surface during the heating cycle will not immediately refreeze into ice as a result of deactivating the deicing system.

Download or view the DS-5 Installation Manual in PDF.

DS-5 Sensor Controller Part Numbers
Typical leadtime for a DS-5 is stock to 1 week

For example:
A DS-5 with a 1/2" conduit hub, 240VAC power pigtails, and yellow and red load pigtails would be a DS-5-500-212

Power and load pigtails are MTW UL 1015 105^oC 600V and are 18" in length from base of conduit hub.

Replacement Parts

Attention
Canadian Customers!
Britech Corporation is now your exclusive
source for ASE products in Canada!
17 Pullman Court, Toronto, Ontario, M1X 1E4
Phone: 416-335-7790 or toll-free 877-335-7790

Need Remote Control/Monitor Capabilities?

Take a look at the affordable remote extension for your DS Series sensors and controllers.
The DP-7 Family of Control/Status Panels

For More Information, Contact
Automated Systems Engineering, Inc.
2519 E Saint Vrain Street
Colorado Springs, Colorado, USA 80909
Phone: 719-599-7477 FAX: 719-599-7482
info@goase.com

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Last Update: 04/11/08