Compared with other kind of detectors, FIRETECH 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 shot 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 24VDC or without 24VDC.
The linear Heat Detection System Consists:
1) LHD Cable
Inter twisting two rigid metallic conductors which are covered by NTC heat sensitive material, with insulative bandage and outer jacked, here comes the Digital Type LHD Cable and the different model numbers depend on the variety of materials of outer jacket to meet different special environments.
2) Control Unit
Technical parameters
Operating Voltage: 24VDC
Allowed Voltage Range: 16VDC-28VDC
Operating Current : Standby Current: ≤20mA Alarm Current: ≤30mA Fault Current: ≤25mA
Operating environment: Temperature:-45℃--+60℃
Relative humidity: 95%
IP Rating: IP66
Dimensions: 90mm×85mm×52mm(H×W×Depth)
3) EOL Box
Technical parameters
Operating Voltage: No Electronics
Operating environment: Temperature:-45 ℃ --+60℃
Relative humidity: 95%
IP Rating: IP66
Dimensions: 90mm×85mm×52mm(H×W×Depth)
Conventional Type
CR/OD Type
not only has good UV resistance and good weather resistance, strongly recommended for outdoor using even under bad weather conditions, but also with high performance of acid resistant, alkali-resistant, salt spray resistant.
EP Type
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