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DEFENDERTECH MF-50 - Indicator Lights and Status; Indicator Light Meanings; Input-Output Signal Connections; 12 V DC and COM Terminal Connections

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Operation of the indicator lights
ARM: Flashing = “DISARMMED device” – Light on steadily = “ARMED
HEAT: Light on steadily = “HEATING Flashing = “READY TO SHOOT
LOW: Flashing = “RESERVE” (1 minute available) – Light on steadly = “DEPLETED LIQUID
FAULT (blu): 3 Flashes = “Battery Failure - 4 Flashes = “Probe Failure
5 Flashes = Electricity Lack - 6 Flashes = “Overheating Burner
8 Flashes = “Burner Resistance Failure
BAT: Light off = OK 1 Flash per second = Discharge - 3 Flashes = Missing or Faulty
Input-Output connection
IN + 12V -
This Input required 12 VDC mandatory from an external source (from the control unit or
the POWER200 accessory).
The maximum absorption during the shooting phase is 350 mA (700mA if the SP2
accessory is installed), if your control unit is unable to deliver this power, it will be
necessary to equip the appliance with the POWER200 accessory, which is composed of a
battery charger power supply and fixing bracket thus making the device energetically
autonomous.
COM
Common terminal of negative polarity (-12V) to be used for interaction with the ARM and
FOG terminals.
ARM (N.O. by default - adjustable to N.C. with the "I" Jump)
By bringing the continuous signal, taken from the COM terminal, to this input, the "ARMING"
of the device will follow. The ARM LED will switch from flashing (which means Stand By) to
steady on (which means Armed), at the same time the HEAT (heating) led will light up.
The burner will be 100% ready to deliver after 20-25 minutes (depending on the ambient
temperature or how long it has been disarmed) and when it is ready, the HEAT LED will flash.
It is possible to change the activation mode of all inputs and outputs from "N.O." (by
default) to "N.C." by removing the jumper "I"

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