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SATEL MICRA 9
Fig. 6. Connection of the siren without own power supply (by example of SP-4001).
3.7 CONNECTING POWER SUPPLY AND STARTING THE MODULE
It is not recommended to power-up the unit with disconnected antenna.
Never connect two devices with power supply unit to one transformer.
Before adding transformer to a circuit from which it will be powered, make sure
the circuit is de-energized.
It is not allowed to connect a fully discharged battery (with voltage across
unloaded terminals less than 11 V) to the module. In order to avoid any damage
to the equipment, if the battery is fully discharged, precharge it by means of
a suitable charger.
The MICRA module must be supplied with 18 V (±10%) alternating voltage. Use the
transformer secondary winding to power the module. It is recommended that a transformer
with at least 40 VA rating be used. The transformer should be permanently connected to the
230 V AC mains. Before you make the cabling, familiarize yourself with the electrical
installation of the facility. Make sure that the circuit you choose for powering the module will
be always alive. The power supply circuit should be protected with a proper safety device.
The owner or user of the module should be instructed on how to disconnect the transformer
from the mains (e.g. by indicating the circuit breaker which protects the module supply
circuit).
A 12 V / 7 Ah battery should be connected to the MICRA module as backup power supply.
If the battery voltage drops below 11 V for longer than 12 minutes (3 battery tests), the
module may report battery failure. When the voltage goes down to approx. 10.5 V, the
battery will be disconnected.
The module should be started in the following order:
1. Make sure that the antenna is connected to its socket on the electronics board.
2. Deenergize the 230 V AC circuit to which the transformer is to be connected.
3. Connect the 230 V alternating voltage wires to the terminals of transformer primary
winding.
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  • I want to write a name for the Urmet 1784 model, is there a link? Submitted on 30-5-2022 at 16:09

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