The JTW-LD-SF601 Cable-Type Linear Temperature Sensor Fire Detector (hereinafter referred to as the detector) is a new type of dual-channel reusable fire detection product for monitoring environmental temperature changes, primarily composed of a signal processing unit (microcomputer processor), temperature-sensing cable, and connecting components (terminal box). The detector is capable of responding to temperature alarms and outputting alarm signals.
Product Features
The temperature-sensitive cable for the detector is, the JTW-LD-SF601 temperature-sensitive cable isThree extruded thermally sensitive insulating material wiresOne serves to enhance mechanical strength (the other one does as well).With a strand of metal wireSpun together (consisting of four metal wires)Capable of detecting temperature changes at any point along its installed length. When the temperature reaches the response value, there is a sudden change in resistance between the cores of the temperature-sensing cable, generating a corresponding signal. This signal is then processed by a microcontroller using fuzzy mathematics to make a fire alarm judgment.
The main features are briefly described as follows:
Thermally sensitive cable features stable structure, strong anti-interference and tensile, as well as crush-resistant properties.
2. Comprehensive judgment of analog signal collection.
Comply with the requirements of Section 4.18 for the small size high-temperature response performance test in GB16280-2014, and the requirement of Section 12.3.3 in GB50116-2013 that the flame size response does not exceed 100mm.
4. The detector does not damage the thermistor cable upon alarm within the safe temperature range, allowing for the cable to be reused.
5. Dual-channel selection of two alarm temperature levels: 85° and 105°.
6. Features open-circuit and short-circuit fault alarms.
7. The microcomputer processor and terminal box housing are made of flame-retardant materials, offering corrosion and aging resistance.
8. Equipped with manual fire alarm and fault simulation functions.
9. The detector boasts strong anti-interference capabilities, utilizing isolation detection and software anti-interference technology, suitable for environments with strong electromagnetic field interference.
Applicable Scenarios
The detector boasts excellent environmental adaptability, capable of close or adjacent protection. It operates with high reliability in a variety of fire detection environments, including humid, polluted, and dusty areas. Consequently, it is extensively used in warehouses, yards, oil and gas transmission pipelines, transformers, belt conveyors, locomotives, and electrical distribution panels. Particularly suitable for early fire detection in power and control cables within cable tunnels, cable bridges, and cable wells.
