E2s MA112 45 Tone Marine grade sounder Installation Instructions

Below you will find brief information for Marine grade sounder MA112 45 Tone. The MA112 45 Tone is a marine grade sounder with 45 different tones and two stages. It can be used in a variety of applications, including fire alarms, security systems, and industrial applications. The sounder is IP66 & IP67 rated, meaning it is dustproof and waterproof.

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MA112 45 Tone Marine grade sounder Installation Instructions | Manualzz

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Key features

  • 45 different tones
  • IP66 & IP67 rated
  • Two-stage alarm
  • DC and AC versions
  • Line monitoring
  • Volume control
  • Tone selection
  • Reverse polarity switching

Frequently asked questions

The DC line monitoring resistor is used to monitor the voltage of the DC power supply. If the voltage drops below a certain threshold, the sounder will activate an alarm.

On DC versions, you can select the second stage alarm tone by reversing the polarity of the supply voltage if the wire link LK1 is present.

Tone 1 is a 340Hz continuous tone and Tone 6 is a 2400Hz continuous tone. The tone selection switch settings are shown in the tone table in the document.
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