Defining The Place Of Installation - Siemens FDF241-9 Technical Manual

Flame detector

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4.2 Defining the place of installation

Building Technologies

Fire Safety

To determine where to install the flame detector, you must first calculate the

maximum detection distance d and then the maximum mounting height h. You can

use these measurements to split the area requiring monitoring into one or more

cubes. Each cube is monitored by one flame detector which is mounted in one

corner of the cube at 45°.

45°

Figure 12: Cube as planning basis for determining the site of mounting

Detection distance d corresponds to the cube's space diagonal and is the

maximum distance between the flame detector and area being monitored.

Mounting height h corresponds to the cube's side length and is the flame detector's

maximum mounting height.

The area is only split into cubes as a basis for planning. The cube does not

correspond to the monitoring area. See also in this connection chapter 'Establish

flame detector arrangement [

You will find information on how to calculate detection distance d and mounting

height h in the following chapters.

WARNING

Unforeseeable flame behavior due to air circulation

Fire is not detected

Only use all the calculations provided below for areas with little air circulation.

If you want to use the flame detector in areas with high levels of air circulation,

please talk to your Siemens contact.

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