Electrical Signaling

Electrical protective signaling systems are configurations of components used to produce alarm signals indicative of fire, smoke,

H8040 LHD供应商_火警探测、报警设备-上海道夫自动化仪表工程有限公司

sprinkler waterflow or other emergency and to produce supervisory signals indicative of conditions needing attention with respect to

protection equipment or watch service. System configurations are classified according to where and how the signals are received.

The categories are commonly designated as local, municipal, remote station, proprietary, emergency voice/alarm communication,

emergency communication, and central station. Auxiliary systems are either local or proprietary systems interconnected with a

municipal system.

This category presents the major system component categories and the integrated system configurations. The selection of

components to form a hybrid system should be made only by those skilled in system design. Also, the suitability of any system

application should be judged on the basis of the hazard(s) being protected.

Alarm Signal Initiating Devices

Alarm signals are initiated either automatically or manually. Automatic detectors respond to changes in characteristic phenomena

associated with fire or other emergency conditions.

Series CTI Linear Heat Detectors

正品H8040 LHD感温报警器_优质火警探测、报警设备感温报警器-上海道夫自动化仪表工程有限公司

Series CTI (Confirmed Temperature Initiation) Linear Heat Detectors used with CTM-530(LT) Interface Module. Model

designation identifies operating temperature rating: CTI-155 {155°F (68°C)}, CTI-190 {190°F (88°C)}, CTI-220 {220°F (105°C)},

CTI-280 {280°F (138°C)}, and CTI-356 {356°F (180°C)}. Suffix, R or X, is added for alternate outer jacket materials. Each

cable is a continuous line type open circuit detector that shorts when in an alarm condition. Spacing guide for the cables:

CTI-155 and CTI-190, 30 x 30 ft (9.1 x 9.1 m); CTI-220 and CTI-280, 25 x 25 ft (7.6 x 7.6 m). CTI-356 is intended for proximity

detection only. CTM-530(LT) Interface Module distinguishes between a mechanical short in the CTI heat detector and thermal

alarm activation. CTM-530(LT) operates on 12 or 24 V dc and provides relay and 4-20 mA outputs for connection to a

compatible Approved control. CTM-530 operating temperature range is -20ºF (-29ºC) {-40ºF (-40ºC) for LT version} to 120ºF (49ºC

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