Кабель датчика температуры система обнаружения огня в туннеле линейный


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Description


MD Series Digital Linear Heat Detectors :


This kind of Digital Linear Heat Detector provides a very-early alarm detecting function to the protected environment. The detector can be known as an intelligent “switch” type detector. The polymers between the two conductors will break down at specific fixed temperature allowing the conductors contact, the short circuit will intimate the alarm. The detector has a continuous sensitivity. The sensitivity of linear heat detector will not be influenced by the environment temperature changing and the length of detection cable using. It does not need to be adjusted and compensation. The detector can transfer both alarm and fault signals to control panels normally with DC24V.





Technology Principle


The polymers between the two conductors will break down at specific fixed temperature allowing the conductors contact, the short circuit will intimate the alarm.





Technology advantage


Industrial safety design


 Electrical interface with low power consumption design


 Real-time monitoring


 Fast response time


 No alarm temperature compensation needed


 Compatible to any kind of fire alarm system


 Alarm temperatures: 68℃, 88℃, 105℃, 138℃ .


 


 





Linear Heat Cable


LHD-9.jpg


 


Intertwisting two rigid metallic conductors which are covered by NTC heat sensitive material, with insulative bandage and outer jacket, here comes the digital type LHD Cable, and the different models depend on the variety of materials of outer jackets to meet different special environments.



 


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Control Unit:


Control Unit MD-CU-D is used for MD series digital type Linear Heat Detection Cable. (the Explosion-proof tank and Safety barrier med to come with MD-CU-D for EP type). The function is to monitor the signal changes of Linear Heat Detection Cable and it can be connected to the Fire Alarm Control Panel.


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EOL Box


EOL Box is used for MS1000, MS1000 CR/OD and MS1000 EP digital Linear Heat Detection Cable. The function is to balance the signal of Linear Heat Detection Cable.


 
































Technical data



MD-EOL-D



Operating voltage



No electronics



Operating temperature



Environment temp.



-45-+60℃



Relative humidity



≤95%



Dimensions(L*W*H)



90*85*52mm



Notice



“Fire Test” “Fault Test” push buttons are for testing use  only


For indoor use only



 






Applications


Cable tray, Cable tunnel, Cable trench, High-voltage cable.


Highway tunnel, Subway tunnel, Dam.


Rail tunnel, Utility tunnel.


Convey belt, Coal conveyor, Coal storage yard.


Oil tank, Gas tank, Oil convey pipeline, Gas pipeline.


Warehouse, etc.


 





Application fields


QQ20210122142045 





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