MTD 2B5 Bedienungsanleitung PDF herunterladen (Seite 5)

Sensitivity

A heat sensor with class.

The heat sensor can be configured

for the standard classes A1, A2 and B in

accordance with EN 54-5, and for special

areas of application also with the index R

or S in accordance with EN 54-5. Three

standard classes in combination with the

index R or S give nine different options

for optimal adaptation to environmental

conditions.

Operational security assured

by self-tests.

The MTD 533X checks its own ability

to function properly. It constantly checks

itself, while monitoring all operating

parameters and reports contamination,

short circuits and other faults as

required. The MTD 533X carries this

self-test out once a second. Even in a

disabled state, it is also ready for use and

to sound the alarm. If it sends an alarm

from this state to the fire alarm control

panel, then it will only be used for the

execution of measures relating to the

formation of fire zones, e.g. closing fire

prevention doors, and no unnecessary

alarm will be sent to the fire brigade in

this instance.

Interactive communication

with the fire alarm control panel.

The MTD 533X communicates

intensively with the control panel and

reports to it even the smallest deviation

from the normal state. With its

intelligent decision-making logic the

MTD 533X connects smoke and

temperature signals, and is therefore sure

to only report actual fires. As soon as

the predefined signalling values are

exceeded, then the alarm is triggered.

If required a pre-alarm can also be

programmed.

90°

18 0°

0°

270°

Response characteristics

Innovative CUBUS levelling.

The MTD 533X uses a unique specially

developed technology: CUBUS levelling.

The detector constantly monitors its

surrounding conditions with regard to

the absolute maximum temperature as

well as the relative increase in

temperature per minute and from these

factors calculates the relevant sensitivity

to smoke and temperature for wherever it

is deployed. In this way, the sensitivity

of the smoke sensor permanently adapts

automatically and dynamically to the

surrounding environmental conditions.

If the temperature exceeds the absolute

or relative values, then the smoke

chamber’s sensitivity is also automatically

adapted accordingly. The detector is now

more alert as to whether traces of visible

or invisible smoke particles can be

detected. If the temperature falls again,

then the sensitivity of the smoke sensor

also decreases.

Designed for optimized detection.

Using the most up-to-date computer-

assisted methods and as a result of more

than 800 fire tests the flow behaviour has

been optimized to such an extent that,

even under extreme conditions – e.g. the

formation of heats below the ceiling as a

consequence of high external

temperatures, a quick and completely

safe detection can be guaranteed.

Optimized smoke penetration and the

balance temperature symmetry guarantee

that the MTD 533X is able to

distinguish between deceptive levels and

an emergency.

The technological pioneer.

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