urmet domus Elkron C420, Руководство по установке

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C420 Installation Manual 23
6 TECHNICAL CHARACTERISTICS
6.1 DETECTORS
The detectors to be connected to the control panel must be characterized by an average current consumption in idle condition lower
than 100
μ A and a current consumption in alarm condition of 23mA at 20V ⎓ . The manual call points must have a current
consumption in alarm condition of 50mA at 20V ⎓ in order to make the zone switch to alarm condition with siren output ON in case it
is programmed in double knock mode.
6.2 DETECTION CIRCUIT
Conventional detection circuit (
1
)
Output voltage 25.5V
⎓
±5% unloaded
Open circuit current < 4mA
Circuit current for alarm (single knock) 20mA
Circuit current for alarm (double knock) 40mA
Short-circuit current > 85mA
End of line resistor 3300 Ω
Max resistance of the circuit 50 Ω
(1) The information reported in this table also applies to the conventional detection circuits handled by the ML420 module.
6.3 POWER SUPPLY UNIT
Power supply unit
AC mains 100-240V
∼
-15/+10%, 50/60Hz, 3A
Output voltage
26,4V ⎓
Output voltage ripple 80mVpp
Max available output current (Imax a) 4.85A
Recharging current with discharged batteries 500mA nominal
Current drawn by the control panel in normal operating
mode without optional modules
160mA
Max current drawn by the control panel without optional
modules
230mA
Nominal current drawn by the ML420 module 45mA – with end of line resistors connected
Max current drawn by the ML420 module
80mA – with end of line resistors connected and all the
relays activated
Nominal current drawn by the MR420 module 20mA
Max current drawn by the MR420 module 50mA – all the relays activated
Current drawn by the RS232/485 board 20mA
6.4 BATTERIES
Two rechargeable lead batteries must be connected in series inside the control panel.
The batteries must:
•
Have the same model/capacity
•
Be of VRLA (Valve Regulated Lead Acid) type
•
Have a case with UL94V-1 or better flame rating
•
Be compliant with IEC 60896-21:2004, IEC 60869-22:2004 standards
Do not use batteries with different characteristics from those indicated.
Turn off the power supply before accessing the battery compartment.
Follow the safety measures detailed in this manual..
Warning: do not reverse the polarity!
Batteries
Battery type FIAMM type FG21202
Voltage of a single battery
12V
⎓
Capacity of a single battery 12Ah
Output voltage of the batteries
27.7V
⎓
Recharge time of the batteries 80% in 24 hours, remaining 20% in the next hours
Recharge type Thermal compensation
Max internal resistance 1.2 Ω (*)
Protection fuse 5x20 – 250V F4A
(*) If the internal resistance of the batteries exceeds the value declared in the table, the batteries must be replaced because they
are worn out.