Addressable Analog LHS Interface Unit

• Remote LHS heat sensitivity alteration from the panel
• Detailed location description settings
• Address can be changed from the panel
• Soft addressing
• Pre alarm
• Remote test facility from the panel
• Electrical supervision
• LED indicator
• Easy to maintain/service

Electrical Specifications
Operating voltage : 17-24V DC
Quiescent current : 600 µA
Alarm current : 1 mA(max)
Maximum IDC Resistance : 100 Ohms
Maximum IDC Current : 600 µA

Indications
Normal : Green LED (Blinks during scan)
Alarm : Red LED (Glows steady)

General Specifications
Operating temperature : 0ºC to 49ºC
Storage temperature : 5ºC to 40ºC
Humidity : 0-95% RH (Non-condensing)
Color : Red
Housing : Top plastic, Bottom-Mild steel
Compatibility : AU101X    Protocol

Mechanical Specifications
Dimensions(HXWXD) : 120x120x48mm

Weight
Without Backbox : 108g
With Backbox : 378g

What are Linear Heat Sensor Cables and how do they work?

Linear Heat Sensor Cables (LHS cables) are heat sensors that offer heat detection through out its length. They can be used at cable trays, storage racks, conveyors etc. for early fire detection, where an installation of a detector device is impractical.

LHS cables are of type Analog and Digital. Each consists of two cores of copper wire with a polymer separating them. They detect heat as the resistivity separating polymer varies in proportion to the temperature in its surveillance.

LHS Interface Units are those that interface communication and settings of the LHS cable with the Control panel.