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Milltronics MFA 4p Overview
Milltronics MFA 4p is a highly sensitive, single setpoint motion sensor alarm unit, used with
MSP and XPP probes. The probe detects an increase or decrease in the speed of rotating,
reciprocating, or conveying equipment and sends the information to the MFA 4p. The MFA
4p works with a pre-amplifier which can be internal to the motion sensing probe or remote
from the motion sensing probe.
Pulses generated from the probe are continually compared to the adjustable setpoint. If the
pulse rate is lower than the setpoint, the alarm relays operating in a faiI-safe mode will de-
energize, indicating failure. The relays will not energize until the pulse rate increases above
the setpoint.
Milltronics MFA 4p
Operating Instructions, 12/2020, A5E33988839-AC
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