FAQ - frequently asked questions
Helpful information and answers to frequently asked questions about our LIST and d-LIST resettable line heat detectors have been clearly compiled for you here.
Do you have a specific question for a possible application or would you like to purchase our LIST and d-LIST systems for early fire detection and temperature monitoring? Then please feel free to contact us. Click here for the contact form.
FAQ - General questions & answers about our
LIST and d-LIST systems
Localisation is carried out precisely by the addressed sensors and the measuring cycle of the cable is a maximum of 10 seconds.
For the line heat detector LIST and d-LIST, we offer standard cable colours as well as any colour according to customer requirements. These are delivered similar to RAL.
Yes, our service team is able - after appropriate approval - to access the evaluation units via telephone modem or network access.
The SEC 20 sensor cable for the LIST system reacts to convection heat as well as to thermal radiation, which mainly contributes to fire detection at higher wind speeds (e.g. in tunnels).
The LIST sensor cable SEC 20 ensures accurate fire detection even at wind speeds of 10 m/s. The same applies to the sensor cable SEC 15.
The same applies to the SEC 15 sensor cable for the d-LIST system.
Yes, the LISTcontroller and the sensor cable SEC 20 are approved according to EN 54-22:2015+A1:2020, response class A1N, A2N as well as BN, environmental group III, VdS approval no.: G 213072.
The d-LISTcontroller is also VDS approved; all information can be found here.
No, the sensor cables and evaluation units of both systems are "Made in Germany".
Yes, we have suitable training offers for both systems, you can find them under Training.
Our LIST system is certified as follows:
- ATEX-certified for zones 2 and 22: Sensor cable SEC 20
Our d-LIST system is certified as follows:
- VDS recognised
- GL and DNV recognised for the maritime industry
- ATEX-certified for zones 2 and 22: sensor cable SEC 15 and the individual sensors ESD-A5
Our sensor cables and control units have been used reliably by many of our customers for more than 20 years.
No, the convection, radiant or conduction heat must reach the sensor.
FAQ - technical questions & answers about our
LIST and d-LIST systems
Yes, and this is unique in the industry of resettable linear heat detectors.
The repeatability of the d-LISTcontroller is ± 0.0625 K.
No, both sensor cables (SEC 20 as well as SEC 15) are only mounted in the area that is to be monitored. The connection from the sensor cable to the evaluation unit can be made via a connection cable.
We have many years of positive experience with the use of a black sensor cable. However, we have not carried out any tests so far.
This depends on the concentration, temperature and duration of the contact. Feel free to contact us with your specific request, we will advise you without obligation.
The following distances must be observed:
- Optimal: >= 1.0 m
- At least >= 0.5 m for 1 kV - 20 kV ( if less, at least 0.2 m)