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Design and Function
Makrofon
FIGURE 4-24: Makrofon and silencer
1. Large fastening bracket
2. Small fastening bracket
3. Housing
4. Marking
5. Screw-in union (connection for pneumatic pilot line)
6. Horn (always mount with the sound outlet facing downward)
7. Silencer (not included in the scope of delivery)
The makrofon is a pneumatically operated alarm device that is used in stationary gas extin-
guishing systems for life safety. Membranes in the makrofon are made to vibrate as a result of
pressurization with gas. This generates a sound at a constant frequency. This sound is ampli-
fied by the horn so that a sound pressure level of approx. 100dB(A) to 125dB(A) is reached
depending on the pressure. The makrofon can optionally be fitted with a silencer.
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Operator's Manual | Oxeo PR LCP | F_101821 Rev 02 | 08-2022 | en
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