7ML19985FM01 MFA 4p - INSTRUCTION MANUAL Page 1
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Introduction
Milltronics MFA 4p
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.
Safety Notes
Special attention must be paid to warnings and notes highlighted from the rest of the text
by grey boxes.
The Manual
This instruction manual covers the installation, operation and maintenance of the
Milltronics MFA 4p. It is essential that this manual be referred to for proper installation
and operation of your unit. Adhering to the installation and operating procedures will
insure a quick, trouble free installation and allow for the maximum accuracy and
reliability of your motion sensing alarm unit and probes.
If you have any questions, comments, or suggestions about the manual contents, please
email us at techpubs.smpi@siemens.com.
For the complete library of Siemens Milltronics manuals,
go to www.siemens.com/processautomation
.
Note: This product is intended for use in industrial areas. Operation of this
equipment in a residential area may cause interference to several frequency
based communications.
WARNING means that failure to observe the necessary precautions
can result in death, serious injury, and/or considerable material
damage.
Note: means important information about the product or that part of the operating
manual.
7ML19985FM01.book Page 1 Wednesday, May 21, 2008 2:17 PM
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