Signaline HD+ Programmable is an EN54 part 22 and UL approved analogue linear heat detector system. Signaline HD+ Programmable uses an analogue linear heat detection cable to continously monitor for overheating by measuring electrical changes within the different cores inside the detection cable.
The Signaline HD+ Controller is a fully programmable control unit. The controller checks the sensor cable for temperature changes continously. Users can set specific alarm thresholds in the controller. This lets them adjust the system based on the area, level of risk, approval standard and alarm temperature required.
A major benefit of Signaline HD+ Programmable is that it can be fully reset. After any heat event, like a minor temperature spike or a small fire, you can quickly reset the system.
This means you do not have to replace the linear heat detection cable to get your site operational again. After dealing with the heat source and letting the sensor cable cool down, you can reset the system. You can do this manually at the controller or automatically, depending on how the system is set up. This way, you avoid downtime and extra costs from replacing heat-sensitive parts.
A fully functional system requires Signaline HD+ Controller, Signaline HD+ Programmable Linear Heat Detector (also available in nylon or stainless steel varieties) and Signaline HD+ EOL
To complete your installation of Signaline HD+ Programmable Linear Heat Detector we recommend the use of the Q Clip
Frequently asked questions
Is Linear Heat Detection approved?
Yes! Signaline HD+ is approved to EN54 part 22 by VdS and UL521 approved by UL.
It is also approved by UAE Civil Defense.
You can download copies of all our approval certificates.
What components do I need for a Linear Heat Detection system?
Linear Heat Detector systems use a line-type heat detection cable which is monitored by a front end controller and terminated in an end of line box.
Signaline HD+ is made up of the HD+ Controller, a choice of HD+, HD+R or HD+SS detection cable and the HD+ EOL unit. The cable can also be supplied with catenary wire if required.
Minimum length of cable required is 50m.
How do I test Linear Heat Detection?
Linear Heat Detection forms part of a building’s life safety equipment and therefore regular testing is essential. Functional testing can be performed by using a suitable heating element on the line-type detection cable to simulate an alarm.
For Signaline HD+, once an alarm threshold is reached it is important to let the cable cool before resetting the controller. The cable does not need to be replaced as long as the testing did not exceed 120°C.
Where it is not possible to live-test the linear heat detection cable due to installation restraints, the Signaline HD+ test PCB can be used. Please refer to the Signaline HD+ manual for further details.
Which clip should I use to secure Linear Heat Detection?
The correct choice of clip depends on the specific enviornment, mounting surface and local regulations in which the linear heat detection is being used.
For EN54 approved solutions the cable should always be mounted with a metal fixing clip that allows a 20mm drop from the fixing surface. This allows air-flow around the line-type heat detector and ensures quick activation in an alarm event.
Specialist clips are necessary for use in specific environments, such as floating roof tanks and cable trays.
When there is no easy mounting surface e.g. due to non-flat surfaces or apexed roofs, consider the use of a catenary wire solution.
You can review a full list of Signaline Linear Heat Detection clips.
Is Linear Heat Detection resettable?
Linear Heat Detection comes in different forms and is based on different detection technologies. Therefore not all linear heat detection can be reset after an alarm.
Signaline HD+ Programmable uses an analogue linear heat detection cable to continuously monitor for overheating by measuring electrical changes within the different cores inside the detection cable.
Due to this detection methodology, the cable can be reset after an alarm event.
Can I use Linear Heat Detection in the Hazardous Area?
For electrical equipment to be used within a designated Hazard Area the items should be certified safe for use. This is normally done by encapsulating the electronics inside a Flame Proof enclosure or ensuring the power consumption is below a minimum threshold to not be an ignition risk (Intrinsically Safe).
Many Linear Heat Detectors are defined as Simple Apparatus. This means, by themselves they do not have the electrical energy to be an ignition source.
Simple Apparatus can be used within the hazardous area, and this is the case for Signaline Linear Heat Detectors.
For more information please review our guide for hazardous areas
What is the minimum and maximum zone length for Linear Heat Detection?
The minimum and maximum zone length for Linear Heat Detection will depend on the approval of the line-type heat detector and the local regulation.
En54 part 22 approved systems are limited to 500m per zone and require a minimum of 50m.
En54 part 28 approved systems are limited to 1000m per zone and have no minimum length.
UL, cUL and FM approved systems are limited to 3000m per zone and have no minimum length.
What reel lengths are available?
Signaline Linear Heat Detection cable is sold in 50 metre lengths, so the minimum order is 50 metres.
We offer reels in 50-metre steps—such as 50m, 100m, 150m, and so on—up to 500 metres for HD+ cables.
